737 MAX
Incident Reports

U.S. based airlines are required to submit safety reports called Service Difficulty Reports (SDRs) for malfunctions involving aircraft systems in accordance with U.S. law. The Federal Aviation Administration (FAA) is required by Department of Transportation policy to investigate these incidents to determine root causes and to ensure corrective action is taken by aircraft manufacturers and airlines to fix the problem(s). These reports are crucial for maintaining and improving aviation safety, as they help to identify potential hazards, evaluate risks, and implement corrective measures to prevent future tragedies.

The foundation believes it is important to highlight select reports involving 737 MAX airplanes. We find the reports listed below concerning because of the history of the MAX and the repetitive and/or serious nature of the reports.

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ASAA2023082944844

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MAINT LIGHT ON OVERHEAD PANEL AFTER LANDING. GROUNDED - YES. FOUND MAINT MESSAGE 21-55011 REF IFIM 21-51-00-810-804 PERFORMED AIR CONDITIONS SYS TEST TEST PASSED, FALUT CLEARED AC OK FOR SERVICE SEAMC NOTIFIED.

ASAA2023082844821

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MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED DURING LANDING ROLL. GROUNDED - YES. MAINT. LIGHT DETERMINED TO BE #2 ENGINE OIL DEBRIS. PERFORMED ODMS INSPECTION REF AMM 79-00-00-710-804-G00. NO CHIPS FOUND ON SENSOR. RESET CHIP COUNT AND PERFORMED IDLE ENGINE LEAK CHECK. LEAK CHECK GOOD, MAINT. LIGHT EXTINGUISHED AND DID NOT RETURN. REF LP 60665067 FOR ODMS DEFERRAL/TSR.

ASAA2023082844831

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MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. C/W FAULT INTEROGATION FOR MX MSG PER AMM 31-65-00. FOUND ENGINE 2 OIL DEBRI STRATUS MSG REF IFIM G79-20-00-810-806. LATCHED MSG ERASED. MAINT LIGHT EXTINGUISHED SEAMC MARK NOTIFIED.

ASAA2023082844810

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CARGO FIRE WARNING PANEL DOES NOT TEST CORRECTLY. GROUNDED - YES. CLEANED HORN CUTOUT SWITCH IN MAIN WHEELWELL, IAW SWPM 20-60-01 AND OP CHECKED GOOD IAW B737-MAX AMM 26-16-00-710-801.

ASAA2023082744780

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ON TAXI IN SEA FOR DEP L SIDE WINDOW HEAT LIGHT ILLUMINATED IAW PROCEDURE: TURNED OFF; WAITED 2-3 MIN, TURN ON; LIGHT WAS OFF SO CONTINUED NORMAL PROCEDURES. PREVIOUS WRITEUP. GROUNDED - YES. PERFORMED OPS TEST OF LH SIDE WINDOW HEAT SYS REF B737-9 IFIM 30-41-00-810-830. TEST OK. NO FAULT NOTED.

ASAA2023082744805

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MAINT LIGHT ON- OVERHEAD. GROUNDED - YES. STATUS MSG IS "ENG 1 INGNITER R" "ENG 1 IGNITER L". ACCOMPLISHED B737-9 IFIM TASK G74-20-00-810-801. TEST 18 AND 19 PASSED, PER STEP 7 OF IFIM. ERASED LATCHED MSGS.

ASAA2023082644794

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#1 ENG LATCH FAULT EEC C2, FOUND FAULT 73-43850. GROUNDED - YES. C/W B737-9 IFIM TASK 673-21-00-810-937. ENG FAN INLET (T12) TEMP SENSOR AND CALCULATED ADIRU AIR TEMP FAULT CLEARED. NO OTHER DEFECT NOTED.

ASAA2023082644795

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#2 ENG LATCH FAULT EEC C2 FOUND FAULT 73-43855. GROUNDED - YES. C/W FIM TASK 673-21-00-810-937 ENGINE FAN INLET T12 TEMP SENSOR AND CALCULATED ADIRU TEMP. FAULT CLEARED NO DEFECT NOTED.

ASAA2023082644797

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MAINT LIGHT ILLUMINATED ON GROUND. GROUNDED - YES. FOUND MAINT LIGHT ILLUMINATED , DUE TO LEFT AND RIGHT ENG #1 IGNITER FAULT, PERFORMED B737-9 IFIM TASK G74-00-00-810-801NO FAULT, AT THIS TIME.

ASAA2023082644777

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#2 ENGINE LOOP A INOP. GROUNDED - YES. ON DEFERRAL.

ASAA2023082644814

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APU OIL QTY INDICATION STATUS MESSAGE, 49-94304. GROUNDED - YES. ON DEFERRAL.

ASAA2023082644789

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DURING CLIMB R/H DUCT PRESSURE 67 PSI, L/H 43 PSI (BELOW 10K' N1-85.0)DURING CLIMB ABOVE 18K' R/H DUCK PX 65-70 PSI, L/H 46 PSI N1 - 92.0)DURING CRUISE FL350 BOTH DUCT PX @ 36 PSI N1 85.2. GROUNDED - YES. REF TSR714883 FOR PRSOV REMOVED AND REPLACED ON #2 ENG.PERFORMED ELECTRICAL LRU TEST REF AMM 36-11-04 TEST PASSED. SEAMC JOEY NOTIFIED, PLACARD REMOVED. THIS CLEARS MEL 36-11-01D.

ASAA2023082644802

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AFTER LANDING OVERHEAD MAINT LIGHT CAME ON. GROUNDED - YES. MAINT LIGHT FOR T/R REF PAGE 60644842, ODMG IS FAILED MESSAGE 79-42854 NOT ACTIVE, PEFORMED FIM TASK G79-21-00-810-810, EEC MAINT ENG 2 POWER TO TEST, MESSAGE NOT ACTIVE, INTERMITTANT FAULT.

ASAA2023082644778

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ON GROUND RT FWD WINDOW OVERHEAT LT. CAME ON. IT EXTINGUISHED AFTER TURNING THE WINDOW HEAT OFF FOR 5 MIN. GROUNDED - YES. BITE CHECKED WCU M00323 REF IFIM 30-41-00-810-829 - NO FAULTS. BITE TEST OK. ETOPS GND VERIFICATION TEST SUCCESSFUL. SEAMC NOTIFIED.

ASAA2023082644798

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FOUND MAINT LIGHT "ON" FAULT CODE 77-43023 ACTIVE #2 ENGINE. GROUNDED - YES. FOUND ENG #2 N1 SENSOR OUT OF RANGE EEC CHANNEL "A". ACCOMP ENG #2 IDLE SYSTEM TEST, TEST PASS REF B737-9 IFIM G77-00-00-810-960 & AMM 71-00-00-700-808 FAULT NOT ACTIVE MAINT LIGHT EXTINGUISHED.

ASAA2023082644787

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#1 ENG ANTI-ICE FAULT LIGHT ILLUMINATED WHEN ENG ANTI-ICE SWITCHED ON IN FLIGHT. (ALTITUDE 9000' OAT 9C). GROUNDED - YES. PERFORM IFM TASK 36-21-00-810-801-801 & IFM TASK 36-11-00-810-812. FAULT CLEARED & ENG 1 ANTI-ICE LT'S EXTENGUSHED. NO ACTIVE FAULT DISPLAY. LRM SYS TEST PASS. SEAMC CARL NOTIFIED. Q6TR841X.

ASAA2023082544806

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GE DIAGNOSTICS REPORTS THE #1 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P3B VS PS3 PRESSURE DISAGREE FAULT. (TASK CARD 73-ASA-01)(#PRI 1/ETOPS) CNR # 20230825097ETOPS SIGNIFICANT SYSTEM. GROUNDED - YES. ACCOMPLISHED TASK CARD 73-ASA-01 PER TSR ENG #1. RESTORED THE LEAP-1B PRESSURE SUB SYSTEM BY REMOVING THE ACCUMULATED MOISTURE FROM THE PSS UNIT AND PS3 AND P3B SENSE LINES PRESSURE SENSING SYSTEM.

ASAA2023082544773

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FLIGHT ATTENDANTS REPORT CABIN TEMP EXCESSIVELY HOT FWD & AFT TEMP SELECTORS ON MAX COOL. RAN THE CABIN TEMPERATURE HOT QRH AND CABIN TEMP RETURNED TO NORMAL. TRIM AIR SWITCH REMAINED OFF FOR THE REMAINDER OF FLIGHT. GROUNDED - YES. ON DEFERRAL.

ASAA2023082544784

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AT T/D WITH FO SIDE AS MASTER, LOSS OF LNAV/VTKV, THEN IMMEDIATELY WENT AWAY. NORMAL OPS FOR REST OF ARRIVAL. GROUNDED - YES. COMPLIED WITH FMC RESET PER IFIM 34-61-00-810-918 FMC OPS CHECKS GOOD, COMPLIED IRS TEST PER AMM 3421-00-710-802 OPS TESTS GOOD. ASMC MARK NOTIFIED.

ASAA2023082544801

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ON LANDING ROLLOUT MAINT LIGHT ILLUMINATED. GROUNDED - YES. REF W/O #1967096 OM L/P 60665066 FOR TSR714887 #2 ENGINE ODMS. DEBRIS FOUND ON ODMS SENOR ONLY. PHOTOS AND DEBRIS SENT TO POWERPLANT ENGINEERING AND TECH SERVICES. NO OTHER DEFECTS NOTED. MAINT LIGHT IS NO LONGER ILLUMINATED.

ASAA2023082544799

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WHILE FULLFILLING TASKCARD #05-020-01, PRESENT LEG FAULTS, FOUND ENGINE #1 SHOWS ECONOMIC FAULT #77-41632, "EGT PROBE 3 VALUE DOES NOT AGREE WITH THE AVERAGE OF ALL OTHER VALID EGT PROBE VALUES." INTERMMITENT FAULT HAS BEEN PRESENT ON MANY OTHER LEGS. GROUNDED - YES. ON DEFERRAL.

ASAA2023082444770

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MAINT LIGHT ILLUMINATED. GROUNDED - YES. ON ARRIVAL TO AIRCRAFT FOUND MAINT LIGHT EXTINGUISHED. ACCOMPLISHED INBOUND FLIGHT DECK EFFECTS & FOUND FAULT CODE 21-55010 NOT ACTIVE. STATUS PAGE SHOWS NO FAULTS. REF IFIM 31-00-00-810-801. AIRCRAFT OK FOR SERVICE. SEAMC STEVE NOTIFIED.

ASAA2023082444785

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ON GRD DURING PREFLIGHT OBSERVED "FMC DISAGREE" ON BOTH NAV DISPLAYS. GROUNDED - YES. QRH "FMC DISAGREE" ON THE GRD PROCEEDURE ACCOMPLISHED. RESTORED NORMAL FMC OPS.

ASAA2023082444793

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GE DIAGNOSTICS REPORTS #2 ENGINE (SN 603335) FUEL FILTER DELTA PRESSURE IS EXPERIENCING AN INCREASE,INDICATING A POTENTIAL FUTURE IMPENDING FUEL FILTER BYPASS. -----PRI1/ETOPS----- ETOPS SIGNIFICANT SYSTEM. URGENT CNR 20230824057. GROUNDED - YES. PULLED AND COLLARED 3 C/B'S REMOVED AND REPLACED #2 ENG FUEL FILTER CARTRIDGE REF AMM 73-11-02. NO CONTAMINATION FOUND. VARIFIED FUEL FILTER DIFF TRANSDUCER IS EFFECTIVE FOR A/C SEAMC JOE NOTIFIED.REMOVED AND REPLACED #2 ENG FUEL FILTER DIFF TRANSDUCER REF AMM 73-11-10. 3 C/B'S PUSHED BACK IN. GROUND VARIFICATION GOOD. THIS CLEARS THE TSR SEAMC NOTIFIED.

ASAA2023082444788

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AERMETRIC REPORTING #1(LH)PRSOV(V189) FAULT 36-11040(PRSOV TORQUE MOTOR SIGNAL OUT OF RANGE)----(#PRI1)ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. REMOVED AND REPLACED ENG #1 PRSOV VALVE PER AMM 36-11-04/401 OPS CHECK LEAK CHECK GOOD. THIS CLEARS TSR. SEAMC WILL NOTIFIED.

ASAA2023082344731

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DURING RECALL AT TOD, SPEED TRIM FAIL AMBER LIGHT ILLUMINATED ON OVERHEAD, LIGHT CLEARED WHEN PRESSING MASTER CAUTION RESET. GROUNDED - YES. PERFORMED SPEED TRIM FAIL LIGHT ON PER IFIM 22-11-00-810-073, BITE TEST PASS, SPEED TRIM FAIL LIGHT EXTINGUISHED, NO FAULTS NOTED.

ASAA2023082344743

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DID NOT GET LIGHT OFF ON #2 ENG START. GOOD DUCT PRESSURE. HAD FUEL FLOW FOR 5-10 SEC - THEN WENT TO ZERO. IGNITION CB'S ALL IN. STARTED #2 ENG ON RIGHT IGNITION. GROUNDED - YES. REMOVED AND REPLACED # 2 ENGINE RIGHT IGNITER PLUG, IGNITION LEAD & RIGHT EXCITER ( LOWER ) REF. 74-21-02, 74-21-01 AND 74-11-01. GROUND VERIFICATION TEST NORMAL AMM 71-00-00-730-805-G00, 71-00-00 TEST 4. THIS CLEARS MEL 74-00-01C, C/N # 23023960 PLACARD REMOVED REVERSED MAINT. PROCEDURES. 2 C/B REMOVED AND RESET SEAMC CARL NOTIFIED.

ASAA2023082344730

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MAINT LIGHT ILLUMINATED. GROUNDED - YES. PACK RAM AIR SYSTEM L STATUS MSG WITH MAINT MSG 21-55010. PERFORMED INIT EVALUATION (1) MIG-51A INSTL AND REMOVED P6-4 A4 C/B CYCLED-A/C SYSTEM TST/IBIT LEFT. TEST PASS MAINT MSG NO LONGER ACTIVE-NO STATUS MSG. MAINT LIGHT OUT. REF IFIM 21-51-00-810-803. SEAMC MIKE NOTIFIED-ETOPS STATUS -OK FOR ETOPS SERVICE.

ASAA2023082344744

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OVERHEAD LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. REF LP 60901976. ENG #2 ODMS CHIP COUNT RESET TO ZERO. OPENED ENG #2 FAN COWLING. REMOVED AND INSPECTED ODMS SENSOR = SENSOR FOUND CLEAN WITH NO DEBRIS FOUND ON SENSOR, REPLACED O RING, AND REINSTALLED ODMS SENSOR. NO LEAK CHECK REQUIRED DUE TO 2 MECHANICS C/W VISUAL CHECK OF INSTALLATION OF O RING - REF AMM 71-00-00-800-804-G00 ODMS SENSOR TEST NOTE 11. CLOSED ENG #2 FAN COWLING. C/W TEST NO. 26 AND RESET ODMS CHIP COUNT TO ZERO. EEC SYSTEM TEST CHECKS OK. REF AMM 79-21-12, 79-00-00-210-804-G00, 71-00-00-800-804-G00, AND 71-11-04.

ASAA2023082344745

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OVERHEAD MAINT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. OPENED ENG #2 FAN COWLING. REMOVED AND INSPECTED ODMS SENSOR = SENSOR FOUND CLEAN WITH NO DEBRIS FOUND ON SENSOR, REPLACED O RING, AND REINSTALLED ODMS SENSOR. NO LEAK CHECK REQUIRED DUE TO 2 MECHANICS C/W VISUAL CHECK OF INSTALLATION OF O RING - REF AMM 71-00-00-800-804-G00 ODMS SENSOR TEST NOTE 11. CLOSED ENG #2 FAN COWLING. C/W TEST NO. 26 AND RESET ODMS CHIP COUNT TO ZERO. EEC SYSTEM TEST CHECKS OK. REF AMM 79-21-12, 79-00-00-210-804-G00, 71-00-00-800-804-G00, AND 71-11-04. CLEARS MEL 79-21-01A. SEAMC CARL NOTIFIED.

ASAA2023082344738

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WHEN SELECTION WEATHER RADAR ON THE NAV DISPLAYS SHOWS WXR FAIL. GROUNDED - YES. NO HISTORY OF FAULT. PERFORMED WXR OPERATIONAL TEST REF MM 34-41-00-710-801 & OPS NORMAL NO FAULTS.

ASAA2023082244737

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FMC DISAGREE MSG ON BOTH NAV DISPLAYS. GROUNDED - YES. REF IFIM TASK 34-61-00-810-918. RESET FMC COMPUTER C/B #1 AND #2. FMC OPS RESTORED SEAMC RON.

ASAA2023082244736

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PWS FAIL ANNUNICIATOR CAME ON AND STAYED ON 500 FT & BELOW ON FINAL APPROACH. GROUNDED - YES. FAULT HISTORY SHOWED WXR RECEIVER FAILURE ON FLT LEGS 5 & 6. REPLACED WXR RECEIVER REF MM 34-41-41-400-802. 1 EA C/B OPENED & CLOSED. OP CK GOOD REF MM 34-41-00-710-801. THIS CLEARS MEL 34-41-01C. NO CONFIG CHANGE. PLACARD REMOVED, C/N 22046967. SEAMC PETER NOTIFIED.

ASAA2023082244741

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APU FAULT ON STARTUP ATTEMPT. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF THE APU IAW AMM 49-11-00-710-802. OPS CHECK GOOD. COULDNT DUPLICATE FAULT. THIS CLEARS MEL 49-11-01. SEAMC RON NOTIFIED. C/N# 22014963. PLACARD REMOVED.

ASAA2023082244729

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DURING THE COMPLETION OF TASK CARD 31-005-00, FOUND SCHEDULED MAINT TASK MESSAGE "BLEED FAMV RVDT R". GROUNDED - YES. C/W TECH SERVICES REQUEST - CONTINUITY CHECK OF WIRING @ CONTACTS NOTED FROM D15876 TO D15840A = NO FAULTS FOUND, WIRING CHECKS OK. REPLACED RIGHT INTEGRATED AIR SYSTEM CONTROLLER, M2957, WITH SERVICABLE UNIT. ALL INSTALLATION TESTS PASSED. REF IFIM 369-12-00-810-804 & 31-00-00-810-803. CLEARS PLT DEFERRAL. SEAMC PETER NOTIFIED.8 MIG 51A TAGS INSTALLED / REMOVED.

ASAA2023082244742

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ENGINE 1 LEFT IGN INOP. GROUNDED - YES. FOUND FAULT 74-42492 IN HISTORY FOR LEFT IGNITION SYSTEMIS FAILED ON #1 ENGINE. TROUBLESHOT PER IFIM 674-00-00-810-822. FAULT WAS NOT ACTIVE OR LATCHED AND NO MESSAGE SHOWN ON STATUS PERFORMED ENGINE TEST 19 REF AMM 71-00-00-730-805-600 TEST GOOD SEAMC TODD NOTIFIED. PER IFIM WAS INTERMITTENT FAULT. THIS CLEARS MEL 74-00-01A. PLACARDS REMOVED. SEAMC TODD NOTIFIED.

ASAA2023082244733

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#2 IDG DRIVE LIGHT DOES NOT ILLUMINATE WITH THE #2 ENGINE SHUTDOWN. GROUNDED - YES. ON DEFERRAL.

ASAA2023082144722

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UNABLE TO TRANSMIT ON HF2 RECEIVE ONLY. GROUNDED - YES. VERIFIEID DEFECT, HF1 RECEIVES AND TRANSMITS 5X5. HF2 COULD NOT GET STATIC CUT OUT ON TRANSMIT WHEN KEYED, ALL CLOCKS HEARD. REF AMM 23-11-00-730-801. REMOVED AND REPLACED HF2 TRANSCEIVER IAW AMM 23-11-21-000/400-801. PASSES INSTALL TEST, LRU STATUS GREEN. NOW STATIC KEYTONE CUT OUT IS HEARD LIKE NORMAL, CAN TRANSMIT AND RECEIVE ON MULTIPLE FREQUENCIES WITH SFO RADIO. GROUND VERIFICATION SUCCESSFUL. 2 CB PULLED, COLLARED, AND RESET. NO A/C CONFIG CHANGES. THIS CLEARS MEL 23-11-01B. PLACARDS REMOVED. SEAMC DAVE NOTIFIED.

ASAA2023082144725

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R2 WINDOW OVER HEAT ILLUMINATED IN DESCENT. GROUNDED - YES. ON DEFERRAL.

ASAA2023082044706

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RT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED ON APPROACH.CONDITIONS WERE IMC , AND NOT IN ICING CONDITIONS,BUTWELL BELOW THE TEMP WHERE A WINDOW SHOULD OVER HEAT. GROUNDED - YES. UPON A/C ARRIVAL RT SIDE WINDOW OVERHEAT LIGHT NOT ILLUMINATEDPERFORMED WINDOW HEAT OPS CHECK REF MM 30-41-00UNABLE TO DUPLICATE THE FAULT.ALSO, RAN WINDOW HEAT SYSTEM CHECK REF MM 30-41-11 ALL SYSTEM TEST PASSED AT THIS TIME.OPERATE WINDOW HEATS MULTIPLE TIME ON GROUND ALL OPS NORMAL.NO MAINT LIGHT OR ANY MSG'S RELATED. OK FOR SVC.SEAMC FELIX NOTIFIED.

ASAA2023082044705

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RIGHT SIDE WINDOW OVERHEAT LIGHT CAME ON AFTER LANDING. GROUNDED - YES. QRH FOLLOWED, LIGHT OUT.

ASAA2023081944678

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WXR FAIL MSG DISPLAYED DURING CLIMB OUT. SYSTEM BEGAN TO WORK AGAIN. NO MSG DISPLAYED. GROUNDED - YES. PERFORMED WXR OPERATIONAL TEST REF B737-9 AMM 34-41-00 AS A PRECAUTION. WXR TEST PASSES.

ASAA2023081844681

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WX FAIL DISPLAYED ON ND. GROUNDED - YES. PERFORMED WXR OPS TEST REF B737-9 AMM 34-41-00. "WXR FAIL" DID NOT SHOW ON DISPLAY. TEST PASS. DETERMINED TO BE AN INTERMITTENT FAULT.

ASAA2023081844674

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#1 ENGINE FIRE OVERHEAT TEST INOPERATIVE ON LOOP A. GROUNDED - YES. ON DEFERRAL.

ASAA2023081844694

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OVERHEAD MAINT LIGHT CAME ON AFTER LANDING AND REMAINS ON. GROUNDED - YES. STATUS MESSSAGE #2 2 CTRL DISPLAYED. FOUND MESSAGE FAN SPEED ( N1) SENSOR IS OUT OF RANGE. PERFORMED B737-9 IFIM TASK G 77-00-00-810-960 STATUS MESSAGE NO LONGER DISPLAYED. MAINTENANCE LIGHT IS OFF.

ASAA2023081844683

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FMC DISAGREE. GROUNDED - YES. RESET PER QRH SUCCESSFUL.

ASAA2023081744671

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SPEED TRIM FAIL LIGHT ON RECALL. GROUNDED - YES. PERFORMED DFCS BITE IAW B737-9 AMM 22-11-00-740-801 GOT FAULT CODE CHANNEL A' 22-11186. PERFORMED B737-9 FIM TASK 22-11-00-810-C61, ALL LRU TEST PASSED. SPEED TRIM FAIL LIGHT STAYED ILLUMINATED, REMOVED FCC FROM LOCK AND REINSTALLED, SPEED TRIM FAIL LIGHT EXTINGUISHED. PERFORMED FLIGHT CONTROL COMPUTER INSTALLATION TEST IAW AMM 22-11-33-400-801, OPS CHECK GOOD.

ASAA2023081744658

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AIR TURN BACK -- PILOT REPORTS PRESSURIZATION FAILED. GROUNDED - YES. AIR TURN BACK -- FOUND AFT E& E DOOR OPEN. PERFORMED E & E DOOR INDICATION TEST IAW AMM 52-71-42-710-801. OPS CKS NORMAL.

ASAA2023081744649

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"MAINT' ANNUNCIATOR LIGHT ON OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. FOLLOWED IFIM 21-51-00-810-835 PERFORMED INITIAL EVALUATION AIR CONDITIONING IBIT RIGHT, ALL TEST GOOD. INTERMITTENT FAULT. NO HISTORY.

ASAA2023081744676

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RIGHT SIDE-WINDOW OVERHEAT OCCURRED DESCENDING THROUGH 10,000 FEET MSL TAT= +20C OAT= +12C. GROUNDED - YES. ON DEFERRAL.

ASAA2023081644650

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MAINT LIGHT ILLUMINATED ON OVERHEAD PANEL. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK 21-51-00-810-817. PERFORMED A/C IBIT LEFT GROUND TEST. FAULT 21-55090 DISPLAYED. RECOMMEND. R&R LEFT PACK TEMP CONTROL REF B737-9 AMM 21-51-10-100-801/400-801. IBIT TEST PASSED. LEAK CHECK GOOD.

ASAA2023081644635

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#1 ENG. HIGH PRESSURE SHUTOFF VALVE LOCKOUT BOLT IS BROKEN AND CANNOT BE SECURED. GROUNDED - YES. REMOVED AND REPLACED #1 ENG. HIGH PRESSURE SHUTOFF VALVE PER AMM 36-11-07. ALL CHECKS GOOD. NO DEFECTS OR OTHER DISCREPANCIES NOTED.

ASAA2023081644642

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SPEED TRIM LIGHT ON RECALL. GROUNDED - YES. ACCOMPLISHED IFIM 22-00-810-D73, DFCS SPEED/STAB TRIM TEST PASSED, NO HISTORY 60 DAYS.

ASAA2023081644624

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WHILE ACCOMPLISHING T/C 31-005-00 FOUND SMT MESSAGE PACK CONTROL CHANNEL R. GROUNDED - YES. ON DEFERRAL.

ASAA2023081644625

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WHILE ACCOMPLISHING T/C 31-005-00 FOUNT SMT MESSAGE BLEED CTRL CARD L. GROUNDED - YES. ON DEFERRAL.

ASAA2023081544615

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FMC DISAGREE. GROUNDED - YES. PERFORMED IFIM 34-61-00-810-918, AC OKAY OKAY FOR CONTINUED FLIGHT.

ASAA2023081544612

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DURING OPS CHECK OF EMERGENCY LIGHTS, FOUND #4 EXTERIOR EMERGENCY LIGHT TO BE INOP. GROUNDED - YES. RELAMPED #4 EXTERIOR LIGHT ON RH SIDE OF FUSELODGE PER AMM 33-51-04. OPS CHECK GOOD. NO FURTHER DEFECTS.

ASAA2023081544632

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FUEL LEAK OUT OF RIGHT WING VENT. GROUNDED - YES. TRANSFERED FUEL FROM #2 MAIN TANK VERIFIED SURGE TANK EMPTY IRT AMM 28-26-00 VERIFIED #2 TANK FUEL SHUT-OFF VALVE OPERATES CORRECTLY IRT AMM 28-21-00. SEAMC PHIL NOTIFIED.

ASAA2023081544613

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WRX FAIL MESSAGE ON ND. WITH PWS FAIL. GROUNDED - YES. CYCLE AIRCRAFT POWER. PERFORMED WEATHER RADAR OPERATIONAL TEST. REF AMM TASK 34-41-710-801. OPS CHECKED GOOD, NO DEFECT NOTED. NO HISTORY PAST 30 DAYS. SEAMC NOTIFIED.

ASAA2023081544631

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L SPAR VALVE CLOSED LIGHT ILLUMINATED BRIGHT AFTER ENGINE START. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE FUEL SPAR VALVE REF AMM 28-22-11. OPERATIONAL TEST PASS. THIS CLEARS MEL 28-22-06 SEAMC WILL NOTIFIED AND PLACARD REMOVED.

ASAA2023081544603

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CONT CAB FWD & AFT CAB TEMPERATURE CONTROL KNOBS SMALL MOVEMENTS PRODUCE WILD TEMPERATURE SWINGS. CONTROL CAB WORST, IT KEEPS MOVING HIGHER IN TEMP AFTER A DEMEND SETTING FOR A LOWER TEMP. SUSPECT FILTERS FOR RESPECTIVE ZONE TEMP PROBES. GROUNDED - YES. FOUND ALL 3 TEMP SENSOR FILTERS CLOGGED RESTRICTING AIRFLOW. REMOVED AND REPLACED CONT, FWD & AFT TEMP CONTROL SENSOR FILTERS REF MM 21-61-06.NO HISTORY PAST 30 DAYS.

ASAA2023081444618

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IN CRUISE FL350, .78 MACH, APPROX 265 IAS, LE FLAPS TRANSIT ILLUMINATED. #8 LE SLAT INDICATOR SHOWED FULL EXTEND AND SLAT APPEARED EXTENDED. BOTH LIGHTS WENT OUT AND CAME ON INTERMITTENTLY DURING THE FLIGHT NO ADVERSE FLIGHT CHARACTERISTICS WERE NOTED. GROUNDED - YES. AIR TURNBACK - REF TSR714829 FOR LE FLAP AND SLAT INDICATION TROUBLESHOOTING AND REPAIR. ALL LEADING EDGE FLAP AND SLAT INDICATIONS NORMAL REF AMM 27-88-00-710-801. CDANCIK 56558 08/15/2023OPERATED THE LEADING EDGE FLAPS AND VISUALLY EXAMINED THE ADJUSTMENT OF THE #8 SLAT. THE SLAT ADJUSTMENT IN ALL 3 POSITIONS (UP, INTERMEDIATE, AND FULL DOWN). CONFIRMED NORMAL OPERATION THROUGHOUT FULL TRAVEL. FULL RETRACTION WAS NORMAL, SLAT POSITIVELY ENGAGED THE DETENTS IN INTERMEDIATE, AND FULL CONTACT WAS MADE WITH THE DOWNSTOPS FULL EXTENDED (NO ROCKING) #8 SLAT OPERATION AND ADJUSTMENT WAS MATCHED WITH AND COMPARABLE TO THE #1 SLAT. AN EXTENDED SLAT WOULD HAVE CAUSED ADVERSE FLIGHT CHARACTERISTICS. NO ADJUSTMENTS REQUIRED REF MM 27-61-00-820-803 AND 27-81-00-860-801. OPS CKS NORMAL FOLLWOING INDICATION REPAIRS ON TSR714829. TSR714829: REMOVED FWD CARGO AFT-RIGHT BULKHEAD PANEL. REMOVED RIGHT WING TO BODY PRESSURE PANEL 191FR. INSPECTED CONNECTORS D39904 AND D39902, AND FEED THROUGH DM2. NO DEFECTS NOTED. INSTALLED PANEL 191FR REF AMM 53-51-21/401.INSTALLED FWD CARGO AFT-RIGHT BULKHEAD PANEL REF AMM 21-32-05/401. PERFORMED LEADING EDGE FLAP AND SLAT PROXIMITY SENSOR TEST WITH LCR METER STEP 3.A - I.(1)(A) REF. AMM 27-8

ASAA2023081444611

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"MAINT LIGHT" ILLUMINATED ON TAXI TO GATE. NO OTHER INDICATIONS. GROUNDED - YES. C/W FAULT INTERROGATION FOR MAINT MSG, FOUND LATCHED FAULT 74-21052 AND ALSO FOUND EEC SWITCHES IN TEST POSITION.C/W IFIM TASK G74-20-00-810-801. EEC CHANNEL A&B IGNITION SYSTEM TEST GOOD. LATCHED FAULT ERASED, MAINT LIGHT EXTINGUISHED SEAMC MARK NOTIFIEDTSAR174M.

ASAA2023081444596

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FMC DISAGREE GROUNDED - YES. PERFORMED CIRCUIT BREAKER RESET PER QRH, FAULT CLEARED, REF GPM 05-00-11.

ASAA2023081444636

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FUEL LEAKING UNDER #2 ENGINE LEAVING TRAIL ON TAXI IN. GROUNDED - YES. TAGGED OUT FLAP LEVER, B SYS HYDROS, START SWITCH, OPENED # 2 ENG FAN COWLS, RAN #2 ENG. FUEL COMING FROM FUEL PUMP PAD ( STEADY FLOW) REF AMM 71-71-00-200-801, CLOSED FAN COWLS, REMOVED TAGS FROM FLAP LEVER, B SYS HYDROS, START SWITCH, T PAULSEN 00631 08/14/2023 MIG 2C 40-0054605 INIT. M CASTONGUAY 50340 ALTERNATE DEACTIVATION PEOCEDURE USED, TABLE 3 ITEM 7 REF CHAPTER 5. #2 ENG MPF WAS REPLACED AND LEAK CK GOOD, NO DEFECT NOTED. REF AMM 73-11-01-400-801-G00. ALT DEACTIVACTION PROCEDURE REVERSED. MIG-2C #40-0054609 CLOSED.

ASAA2023081444595

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FMC DISAGREE MESSAGE DIDPLAYED, IT DISAPPEARED AFTER SWITCHING FROM GPU TO APU POWER. GROUNDED - YES. PERFORMED FMC DISAGREE FAULT ISOLATION PER IFIM 34-61-00-810-918, OPS CHECK GOOD, FMC DISAGREE MESSAGE EXTINGUISHED.

ASAA2023081444606

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HF2 RADIO FAILURE, NO TRANSMIT NOR RECEIVE CAPABILITY. GROUNDED - YES. DIVERSION - CYCLED POWER ON HF2, BITE CHECK GOOD REF FIM 23-11-801. HF2 GROUND VERIFICATION GOOD REF AMM 23-11-00-710-801, SEAMC MITCH NOTIFIED.

ASAA2023081444605

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HF1. BOTH HF1 AND HF2 RECEIVE NORMALLY, BUT COULD ONLY TRANSMIT ON HF2. ADDITIONALLY, COULD ONLY RECIEVE SELCAL CHECK ON HF2. CPDLC LOGON AND COMMUNICATIONS SUCCESSFUL AND SATCOM FUNCTIONS NORMALLY. GROUNDED - YES. PERFORMED HF1 BITE PER FIM 23-11-801. FOUND FAULT "KEY INTERLOCK" REPLACED #1 HF TRANSCEIVER PER AMM 23-11-61-000/400. GROND VERIFICATION GOOD. REPLACED #1 HF COUPLER PER AMM 23-11-61-000/400-801. GROUND VERIFICATION GOOD. THIS CLEARS MEL 23-11-01B. SEAMC MITCH NOTIFIIED.

ASAA2023081444601

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ON APPROACH & LANDING & TAXI IN LEFT DUCT PRESSURE SWUNG BETWEEN 0 AND 65 PSI MULTIPLE TIMES UNTIL ENGINE SHUTDOWN. GROUNDED - YES. REMOVED AND REPLACED L IASC REF MM 21-61-22, ALL TESTS PASSED. ACTIVE IASC MESSAGE CLEARED. THIS CLEARS MEL 21-51-02B, C/N REMOVED,SEAMC DARREN NOTIFIED.

ASAA2023081444610

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R SIDE WINDOW HEAT OVERHEAT CAUTION ILLUM QRH DID NOT RESOLVE CONDITION. GROUNDED - YES. ON DEFERRAL.

ASAA2023081444590

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MAINT LIGHT ON OVERHEAD ILLUMINATED AFTER LANDING. GROUNDED - YES. MAINT LT WAS EXTINGUISHED UPON ARRIVAL. INBOUND INACTIVE FAULT IS MSG 21-55011, PERFORMED IFIM 21-51-00-810-804, INITIAL EVALUATION PASSED, FAULT WAS INTERMITTENT. NO HISTORY FOR RAM AIR ACT LAST 30 DAYS.

ASAA2023081344551

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DURING #2 ENGINE START AFTER FUEL WAS INTRODUCED N2 INCREASED TO 30% AND FUEL FLOW WAS NORMAL. N2 DID NOT INCREASE AND FUEL FLOW EVENTUALLY WENT TO ZERO. START WAS ABORTED. GROUNDED - YES. RESET SYSTEM AND PERFORMED IFIM FOR #2 ENGINE FAULT 74-42544 RIGHT SYSTEM IGNITION SYSTEM FAIL-FAULT NOT ACTIVE. TEST NO 18-EEC IGNITION SYSTEM TEST PASSES FOR A & B CHANNELS- AMM REF. 71-00-00-730-804-G00. ENGINE #2 ENGINE RUN GOOD. SEAMC MIKE NOTIFIED.

ASAA2023081344597

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START VALVE FAIL TO CUT-OUT. RAN CHECKLIST. START VALVE LIGHT WENT OUT. GROUNDED - YES. ON DEFERRAL.

CALA2023081402500

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REF LP 4909862 . FUSELAGE SKIN GOUGE (BUTT JOINT AFT SKIN) STA. 360 BELOW S-24R ACCOMPLISH A PERMANENT REPAIR PER PART 3 OF ECRA 5331-03034 ON OR BEFORE 200 FLIGHT CYCLES INITIATE A DIP TO ?ACCOMPLISH A PERMANENT REPAIR PER PART 3 OF TOMC-APPROVAL FROM SC1ELBYC COMMENT ECRA 5331-03034 ON OR BEFORE 200 FLIGHT CYCLES.?. THE GOUGE WAS MEASURED AT 1.5 INCHES LONG BY 0.125? WIDE BY QC RECORDS UPDATE 0.018? DEEP. AIRCRAFT N37536 IN ACCORDANCE WITH PART 2 OF THE LATEST REVISION OF ECRA 5331-03035. ACCOMPLISHED REPAIR OF FUSELAGE SKIN AT STA 360 BELOW S-24R IAW ON OR BEFORE 08/11/2025, PERFORM AN INSPECTION OF THE FUSELAGE 737MAX-9 EC/RA 5331-03035 PART 1. SKIN REPAIR JUST AFT OF STA 360, BETWEEN STR 23R AND STR 25R.

ASAA2023081244561

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WHILE ACCOMPLISHING T/C 31-005-00, FOUND SMT LATCHED MESSAGE "ENG 1 BLEED FAMV RVDT L MAINTENANCE MESSAGE 36-12030". GROUNDED - YES. ON DEFERRAL.

ASAA2023081244557

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L SIDE & L FWD WINDOW HEAT DOES NOT INDICATE "ON". GROUNDED - YES. PERFORMED IFIM TASK 30-41-00-810-827, C/W WHCU SYSTEM TEST PER AMM 30-41-11-710-801, SYSTEM TEST GOOD. SEAMC MARK NOTIFIED. TSAR174M.

ASAA2023081244579

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APU OIL QTY STATUS MESSAGE, MAINTENANCE , MESSAGE 49-94304 DISPLAYED. GROUNDED - YES. TROUBLESHOT IAW FIM 49-90-00-810-811. PERFORMED INITIAL EVALUATION. OMF SHOWED NOT ACTIVE FOR MAINTENANCE MSG 49-94304. FIM STATES THERE WAS AN INTERMITTENT FAULT. REF L/P 60722836 FOR APPLICATION OF MEL 49-99A ( APU ON DEMAND POST MAINTENANCE ).

ASAA2023081244560

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REF QRH RIGH FORWARD WINDOW OVERHEAT ILLUMINATED, POSSIBLE OVERHEAT SWITCH BUMPED BY ACCIDENT, ACCOMPLISHED QRH AND WINDOW HEAT RESET AND REMAINED NORMAL. GROUNDED - YES. WINDOW HEAT TEST OK AMM 30-41-11.

ASAA2023081244568

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LEFT FMC DISAGRRE (VTK ON LEFT MAP) FOLLOWED BY RESTORITION UNTIL 1 MINUTE. GROUNDED - YES. REF ILIM 34-61-00-810-918, OMF NO FAULTS, OPS GOOD, NO HISTORY 60 DAYS.

ASAA2023081244550

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WHILE ACCOMPLISHING TASK 05-020-01 FOUND ENG 1 EEC C2 SCH MAINT MSG. GROUNDED - YES. ON DEFERRAL.

ASAA2023081244565

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IN CRUISE AT FL 350 OBSERVED DUAL FMC FAILURE WITH BOTH MCDUS ON MENU PAGE WITH FMC LINE BLANK, BLANKING OF NAV DISPLAYS, BOTH VTK ILUMINATED. FMC'S SELF RECOVERED AFTER APROX. 1 OR 2 MINUTES. GROUNDED - YES. UPON ARRIVAL BOTH FMCS OPERATE NORMALLY, PERFORMED SYSTEM RESET OF FMCS PRECAUTIONARY OPS CK NORMAL REF IFIM 34-61-00-810-918 SEAMC DARREN NOTIFIED.

ASAA2023081144554

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DURING PDC NOTED MAINT LIGHT ILLUMINATED OVERHEAD. GROUNDED - YES. ON STATUS PAGE ENG 2 CONTROL STATUS MESSAGE SHOWS. ACCOMPLISHED EXISTING FAULTS CHECK & FOUND MAINT MESSAGE 77-43023 FAN SPEED SENSOR OUT OF RANGE. NOT ACTIVE. ACCOMPLISHED FIM 77-00-00-810-960. ENG IDLE SYSTEST PER AMM 71-00-00-700-808-G00. IDLE TEST PASSED & MAINT MESSAGE DOES NOT SHOW ON GROUND TEST DISPLAY. ERASED STATUS MESSAGE PER IFIM 73-20-00-00-810-858 & MAINT LIGHT EXTINGUISHED. AIRCRAFT OK FOR SERVICES.

ASAA2023081144546

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HF1 FAIL. GROUNDED - YES. (RESOLVED ON W/O: 1964848 TASKCARD: N/R-00001 ) PERFORMED HF #1 SYSTEM TEST GOOD, OPS TEST PASSED & VOICE TEST IS SATISFACTORY AMM 23-11-00-730-801, CLEARS MEL 23-11-01B, PLACARD REMOVED, SEAMC ASHRAF NOTIFIED. NO HISTORY FOR 60 DAYS.

ASAA2023081044524

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DURING ETOPS PDC OIL LEVEL CHECK, APU OIL LEVEL DISAPPEARED AND MAINT. LIGHT CAME ON. GROUNDED - YES. PERFORMED B737-9 FIM TASK FOR MSG 49-94304. OIL LEVEL SENSOR FAILURE. AFTER INITIAL EVALUATION TEST, ALL INDICATIONS RETURNED TO NORMAL. MAINT LIGHT EXTINGUISHED-NO ACTIVE FAULTS SHOWING ON STATUS, INTERMITTENT FAULT. APU STARTED AND OPERATED NORMAL OK FOR SERVICE. FIM TASK 49-90-00-810-811.

ASAA2023081044571

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AFTER CROSS BLEED START ENG NBR 2 NBR 1 BLEED LIGHT ILLUMINATED. AT THE GATE AFTER SHUTDOWN MAINT LIGHT ILLUMINATED. GROUNDED - YES. UPON OMF QUERY NOTIED HPSOV ON STATUS PAGE. ACCOMPLISHED EXISTING FAULTS FOUND FAULT CODES 36-00180, 36-11020, 36-12030 AND 36-00051. ACCOMPLISHED IFIM 36-11-00-810-802. ACCOMPLISHED PNEUMATIC ENG ON SYS TEST. PER AMM 36-00-00-730-801. ALL FAULTS CLEARED. BLEED LIGHT MAINT LIGHT AND ANTI ICE LIGHTS EXTIGUSHED A/C OK FOR SERVICE SEAMOC STEVE NOTIFIED.

ASAA2023081044574

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AFTER STARTING ENG NBR 1 WITH AIR CART NBR 1 ENG ANTI-ICE LIGHT ILLUMINATED. GROUNDED - YES. REF LOG PAGE 60841435 FOR CORRECTIVE ACTION. AFTER BLEED FAULT TROUBLESHOOTING ANTI ICE FAULT CLEARED. UPON OMF QUERY NOTICED HPSOV ON STATUS PAGE. ACCOMPLISHED EXISTING FAULTS FOUND FAULT CODES 36-00180, 36-11020, 36-12030 AND 36-00051. ACCOMPLISHED IFIM 36-11-00-810-802. ACCOMPLISHED PNEUMATIC ENG ON SYS TEST. PER AMM 36-00-00-730-801. ALL FAULTS CLEARED. BLEED LIGHT MAINT LIGHT AND ANTI ICE LIGHTS EXTINGUISHED A/C OK FOR SERVICE SEAMOC STEVE NOTIFIED

ASAA2023081044521

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AFTER MAINTENANCE FOUND BLEED FAMV L&R FAULTS ON STATUS. GROUNDED - YES. ACCOMP ELECTRIC LRU REPLACEMENT TEST AND PNEUMATIC ENG ON - FAMV TEST FOR #1 AND #2 ENG. ALL TEST PASS. FAULTS ARE CLEAR. REF B737-9 AMM 36-12-00,36-00-00.

ASAA2023080944525

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ENG 2 EEC C1 SMT MESSAGE DISPLAYED. GROUNDED - YES. TROUBLESHOOT ENG 2 EEC C1 SMT PER B737-9 IFIM G73-20-00-810-856. ERASED MESSAGE. PERFORMED ENGINE IDLE SYSTEM TEST AND TEST PASSED REF IFIM G73-20-00-810-856. NO MESSAGE AFTER ENGINE ILDE TEST. OPS CHECK GOOD.

ASAA2023080944504

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RIGHT ENGINE FAIL TO LIGHT OFF, L & R IGN. GROUNDED - YES. FOUND #2 ENGINE L & R IGNITION C/B'S OPEN, CLOSED C/B'S PER AMM 20-60-05, PERFORMED IGNITION OPS CHECK PER AMM 71-00-00 , OPS CHECK GOOD.

ASAA2023080944578

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GE DIAGNOSTICS REPORTS THE #2 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P3B VS PS3 PRESSURE DISAGREE FAULT. GROUNDED - YES. REMOVED AND REPLACED PSS REF AMM 73-21-11, OPS CHECKS GOOD.

ASAA2023080944499

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DURING PREFLIGHT GOT "VTK" AND "MAP" FLAGS ON F.O. NAV DISPLAY. GROUNDED - YES. ACCOMPLISHED IFIM TASK 31-00-00-810-803 RESET FMC'S CMPTR C/B NO ACTIVED FAULTS STATUS MESSAGES CLEARED. 'VTK AND MAP' NO SHOWING ON F.O. NAV DISPLAY, NO FAULTS NOTED.

ASAA2023080844483

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WHILE ACCOMPLISHING T/C 35-005-00 FOUND #1 ENG FAULT CODE 36-12030 FAMV RVDT SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.

ASAA2023080844496

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WHILE ACCOMPLISHING T/C 31-005-00 FOUND FAULT CODE 36-00051 DUAL BLEED STATUS SIGNAL FROM ACAU-R DOES NOT AGREE WITH INTERNAL DUAL BLEED DETERMINATION LOGIC. GROUNDED - YES. ON DEFERRAL.

ASAA2023080844500

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AFTER LANDING, DURING ROLLOUT, BEFORE FLAPS RETRACTED UP, MAINTENANCE LIGHT ILLUMINATED. GROUNDED - YES. COMPLIED BOTH FAULT INTERROGATION FOR MX MSG, FOUND NON ACTIVE FAULT MSG 77-43023. RESET LATCHED FAULT PER AMM 31-65-00. MX LIGHT EXTINGUISHED. SEAMC MARK NOTIFIED. (TSAR174M).

ASAA2023080844498

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USING HF#1, THE HF ANTENNA WAS UNABLE TO TUNE ON MULTIPLE HF FREQUENCIES. (HF #2 WORKS NORMAL). A STEADY TONE LASTING APPROXIMATELY 10 SECONDS WOULD PRECEED OUR INABILITY TO TRANSMIT.(NO SIDE TONE) AT 3 HOURS INTO FLIGHT. WE ATTEMPTED HF#1 AGAIN AND IT WORKED NORMALLY. GROUNDED - YES. PERFORMED OP CHECK ON HF#1 IAW AMM 23-11-00. OP CHECK GOOD.

ASAA2023080744475

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AUTO FAIL AND ALTN LIGHTS ILLUMINATED DURING FLIGHT AT FL400 APPROX 40 MIN INTO FLIGHT - NON ETOPS VERIFICATION NOT SUCCESSFUL. GROUNDED - YES. REMOVED AND REPLACED AFT OUTFLOW VALVE ASSEMBLY IAW B737-9MAX-AMM 21-31-03-000-801 & 21-31-03-400-801 OPS CHECKS GOOD.

ASAA2023080744484

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WITH APU PRESSURIZING PACKS, DUCT PRESSURE FLUCTUATES FROM 10 TO 35 PSI. GROUNDED - YES. ACCOMPLISHED ENG NORMAL START REF AMM 71-00-00 WITH APU BLEED AIR WITH NO FLUCTUATION NOTED APU OPS NORMAL THIS CLEAR MEL 49-52-01B SEA MOC NOTIFIED PLACARDS REMOVED.

ASAA2023080744469

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WHILE ACCOMPLISHING T/C 05-020-01 DISCOVERED SMT MESSAGE ENG 2 EEC C2. GROUNDED - YES. ON DEFERRAL.

ASAA2023080744468

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WHILE ACCOMPLISHING T/C 05-020-01 DISCOVERED SMT MESSAGE ENG 2 EEC C1. GROUNDED - YES. ON DEFERRAL.

ASAA2023080744464

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MAINT LIGHT LANDING ROLL OUT. GROUNDED - YES. PERFORMED IFIM TASK 36-12-00-810-801, BLEED FAMVL FAUL ON OMFS. FLIGHT CREW PERFORMED ENGINE ON PNEUMATIC SYSTEM TEST ASSOCIATED MX MESSAGE CLEARED. OPS CHECK GOOD. MAINT LIGHT EXTINGUISHED. NO FURTHER DEFECTS NOTED. IAW AMM 36-00-00-730-801 SEAMC ARNIE NOTIFIED.