# Service difficulty reports: N953AK

A list on [N953AK](https://openairdocs.org/aircraft/N953AK.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

- [SDR ASAA2026040665349](https://openairdocs.org/sdr/ASAA2026040665349.md): Power Supply · inoperative · Apr 6, 2026 · N953AK · Boeing 7379 · Emergency Lighting
  > WHILE PERFORMING T/C #33-010-00, FOUND SEAT ROWS 16 ABC AND 16 DEF VERTICAL LIGHTED ARROW EMERGENCY LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED BOTH VERTICAL LIGHTED ARROW EMERGENCY LIGHTS ON SEAT ROWS 16 ABC AND 16 DEF REF AMM 33-51-01. OPS CHK FAILED. L
- [SDR ASAA2025081360255](https://openairdocs.org/sdr/ASAA2025081360255.md): Nut Plate · corroded · Aug 13, 2025 · N953AK · Boeing 7379 · Fuselage Miscellaneous Structure
  > LH SIDEPLATES ( TRANSITION) NUTPLATES FALLING OFF DUE TO CORROSION ON SIDEPLATE STA 727-787. GROUNDED - YES. REPAIRED TRANSTION PANEL IAW B737-9MAX SRM 53-00-53-2R-5W:3 O:.040 R:.020 L:10 D:.020.
- [SDR ASAA2024032048572](https://openairdocs.org/sdr/ASAA2024032048572.md): Plate · lack of lube · Mar 20, 2024 · N953AK · Boeing 7379 · Passenger/Crew Doors
  > FA REPORTS L2 DOOR VERY HARD TO CLOSE. GROUNDED - YES. FOUND L2 DOOR GUIDE ARM PLATE TRACK BONE DRY, ACCOMPLISHED AFT ENTRY DOOR LUBRICATION OF GUIDE ARM PLATE TRACK REF AMM 12-15-12-640-801 OPS CHECK GOOD.
- [SDR ASAA2023110646064](https://openairdocs.org/sdr/ASAA2023110646064.md): Filter Element · dirty · Nov 6, 2023 · N953AK · Boeing 7379 · APU Oil System
  > DURING GVI ON APU FOUND BYPASS INDICATOR POPPED ON LUBE FILTER ELEMENT. GROUNDED - YES. REMOVED & REPLACED APU LUBE FILTER ELEMENT & RESET BYPASS INDICATOR. OPS CHECK GOOD. NO LEAKS FOUND. REF AMM 49-91-12-400-801 SEAMC NOTIFIED.
- [SDR ASAA2023110646040](https://openairdocs.org/sdr/ASAA2023110646040.md): Anti-Ice Valve · faulty · Nov 6, 2023 · N953AK · Boeing 7379 · Airfoil Anti/De-ice System
  > DURING DESCENT WING ANTI-ICE R VALVE LIGHT STAYED ON WITH SWITCH ON. ACCOMPLISHED QRH. GROUNDED - YES. REMOVED & REPLACED R/H WING A/I VALVE REF MM 30-11-11. LEAK & OPS CHECKEDD GOOD. MEL 30-11-01B CLEARED. PLACARD REMOVED. SEAMC JEREMY NOTIFIED.
- [SDR ASAA2023110146034](https://openairdocs.org/sdr/ASAA2023110146034.md): Unknown · unknown · Nov 1, 2023 · N953AK · Boeing 7379 · APU Start/Ignition System
  > APU FAILED TO START ON TAXI IN TO GATE AND FAULT LIGHT ILLUMINATED. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023101145578](https://openairdocs.org/sdr/ASAA2023101145578.md): Unknown · unknown · Oct 11, 2023 · N953AK · Boeing 7379 · Cabin Cooling System
  > ON LANDING, "MAINT" LIGHT ON OVERHEAD PANEL ILLUMINATED AND EXTINGUISHED ON SHUTDOWN. GROUNDED - YES. NOTED MAIN LT EXTINGUISHED & NO STATUS MESSAGES. PRESENT LEG & FAULT HISTORY SHOWS FC 21-55010 / LEFT AC PACK EXIT RAM AIR DOOR ACTUATOR HAS A SIGNAL ERROR. P
- [SDR ASAA2023101045574](https://openairdocs.org/sdr/ASAA2023101045574.md): Igniter · inoperative · Oct 10, 2023 · N953AK · Boeing 7379 · Spark Plug/Igniter
  > #2 ENG LH IGNITION INOP. GROUNDED - YES. (RESOLVED ON W/O: 1973335 TASKCARD: N/R-00001) REF AMM 74-21-01 INSTALLED 3 MIG-51A, REMOVED AND REPLACED #2 ENG LEFT IGNITION LEAD, OPS TEST GOOD.3 MIG-51A REMOVED, THIS CLEARS MEL 74-00-01A C/N 10052953 REMOVED. SEAM
- [SDR ASAA2023101045568](https://openairdocs.org/sdr/ASAA2023101045568.md): Unknown · unknown · Oct 10, 2023 · N953AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > ON ROLLOUT AFTER LANDING, MASTER CAUTION, ANTI ICE, AND CAPT PITOT LIGHTS ILLUMINATED MOMENTARILY AND WENT OUT AFTER A FEW SECONDS. GROUNDED - YES. CAPTS PITOT PROBE SYS. TEST OK REF 30-31-00 GVI CAPTS PITOT PROBE, NO DEFECTS NOTED. PHIL NOTIFIED SEAMC.
- [SDR ASAA2023100845528](https://openairdocs.org/sdr/ASAA2023100845528.md): Modulating Valve · faulty · Oct 8, 2023 · N953AK · Boeing 7379 · Pneumatic Distribution System
  > MAINT LIGHT ILLUMINATED ON OVERHEAD PANEL. GROUNDED - YES. FOUD FAMV(R) STATUS MESSAGE. FAULT 36-12021 ACTIVE. ACCOMPLISHED LRU REPLACEMENT TEST REF AMM 36-12-00. FAILED. JROBERTS 38885. REMOVED & REPLACED ENGINE 2 FAN AIR MODULATING VALVE WITH NEW REF AMM 36-
- [SDR ASAA2023091545159](https://openairdocs.org/sdr/ASAA2023091545159.md): Pitot Tube · faulty · Sep 15, 2023 · N953AK · Boeing 7379 · Pitot/Static System
  > CAPT PITOT LIGHT ILLUMINATED PRIOR TO TAXI WITH BOTH ENGINES RUNNING. GROUNDED - YES. REMOVED & REPLACED CAPTAINS PITOT PROBE IAW BOEING 737NG AMM 34-11-01. OPS CHK LEAK CHECK GOOD.
- [SDR ASAA2023082944898](https://openairdocs.org/sdr/ASAA2023082944898.md): Unknown · unknown · Aug 29, 2023 · N953AK · Boeing 7379 · Ignition System
  > ENG #2 NO LIGHT OFF. GROUNDED - YES. PER IFIM TASK G74-00-00-810-824. PERFORMED EEC CHANNEL B IGNITION SYSTEM TEST. REF AMM TASK G71-00-00-730-805-G00. OPS CHECK GOOD. NO DEFECTS NOTED. CLEARS MEL, SEAMC CARL NOTIFIED.
- [SDR ASAA2023082444770](https://openairdocs.org/sdr/ASAA2023082444770.md): Unknown · unknown · Aug 24, 2023 · N953AK · Boeing 7379 · Cabin Cooling System
  > 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. SE
- [SDR ASAA2023082344730](https://openairdocs.org/sdr/ASAA2023082344730.md): Unknown · unknown · Aug 23, 2023 · N953AK · Boeing 7379 · Cabin Cooling System
  > 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 LI
- [SDR ASAA2023080444447](https://openairdocs.org/sdr/ASAA2023080444447.md): Unknown · unknown · Aug 4, 2023 · N953AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > CA PITOT LT ILLUMINATED ON TAXI. GROUNDED - YES. SELECTED PITOT HEAT A+B TO ON FOR 30 MINUTES, "CAPT PITOT" LIGHT DID NOT COME ON. ALL PROBES HEATED NORMALLY. REF IFIM TASK 30-31-00-810-801, THIS WAS AN INTERMITTENT FAULT. AS A PRECAUTIONARY MEASURE, CYCLED CB
- [SDR ASAA2023072144159](https://openairdocs.org/sdr/ASAA2023072144159.md): Unknown · unknown · Jul 21, 2023 · N953AK · Boeing 7379 · Fuel Controlling System
  > REF TC 05-020-01 - ENG #2 SMT ENG 2 EEC C1 SHORT TERM FAULT. GROUNDED - YES. NOTED NO CORRELATED FAULTS, ERASED LATCHED SMT MESSAGE. C/W TEST #32 - ENG IDLE SYSTEM TEST. ENG #2 SMT ENG 2 EEC C1 NO LONGER EXISTS. REF IFIM TASK G73-20-00-810-856.
- [SDR ASAA2023070343869](https://openairdocs.org/sdr/ASAA2023070343869.md): Unknown · unknown · Jul 3, 2023 · N953AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > FWD L WINDOW OVERHEAT. GROUNDED - YES. RESET PER QRH. OVERHEAT LIGHT REMAINED EXTINGUISHED.
- [SDR ASAA2023062043657](https://openairdocs.org/sdr/ASAA2023062043657.md): Unknown · unknown · Jun 20, 2023 · N953AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE CAUTION MSG ON GROUND GROUNDED - YES. QRH RESET PROCEDURE COMPLETED SUCCESSFULLY
- [SDR ASAA2023060743690](https://openairdocs.org/sdr/ASAA2023060743690.md): Unknown · unknown · Jun 7, 2023 · N953AK · Boeing 7379 · Fuel Controlling System
  > SMT ENG 1 C2 FOUND WHILE PERFORMING T/C 05-020-01 WITH CORRELATED FAULT 73-43840. GROUNDED - YES. REF IFIM TASK G73-20-00-810-855 NO FAULTS DETECTED AT THIS TIME.
- [SDR ASAA2023041942925](https://openairdocs.org/sdr/ASAA2023041942925.md): Unknown · unknown · Apr 19, 2023 · N953AK · Boeing 7379 · Cabin Cooling System
  > MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED AFTER LANDING. GROUNDED - YES. MDS STATUS INDICATES "PACK RAM AIR SYSTEM L" W/ A CORRELATED ACTIVE MESSAGE 21-55010. PRECAUTIONARY INSPECTED LEFT AFT RAM AIR EXHAUST ACTUATOR LINKAGE AND CONNECTIONS FINDING ALL SECURE.
- [SDR ASAA2023033042648](https://openairdocs.org/sdr/ASAA2023033042648.md): Unknown · unknown · Mar 30, 2023 · N953AK · Boeing 7379 · Airfoil Anti/De-ice System
  > AFTER TURNING ON THE WING ANTI ICE THE L VALVE LIGHT ILLUMINATED. GROUNDED - YES. PERFORMED OPERATIONAL TEST OF WING ANTI-ICE SYSTEM PER B737-9 AMM 30-11-00,SYS OPS CHK NORMAL.
- [SDR ASAA2023022242038](https://openairdocs.org/sdr/ASAA2023022242038.md): Unknown · unknown · Feb 22, 2023 · N953AK · Boeing 7379 · Flight Management Computing Hardware System
  > FO'S MCDU SCREEN IS FROZEN ON MENU PAGE. BUTTONS APPEAR TO FUNCTION BASED ON CA MCDU, HOWEVER FO'S PAGE DOES NOT CHANGE. ON ARRIVAL AFTER FLAPS WERE SET TO 1, THE FO'S MCDU BECAME 'ACTIVE' AND FUNCTIONED NORMALLY REMAINDER OF FLIGHT. GROUNDED - YES. CYCLED POW
- [SDR ASAA2023013041720](https://openairdocs.org/sdr/ASAA2023013041720.md): Unknown · unknown · Jan 30, 2023 · N953AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE MESSAGE DURING PRE-FLIGHT. GROUNDED - YES. ACCOMPLISHED B737-9 FIM TASK 34-61-00-810-918, FMC OPS CK GOOD.
- [SDR ASAA2022112240902](https://openairdocs.org/sdr/ASAA2022112240902.md): Warning Light · false activation · Nov 22, 2022 · N953AK · Boeing 7379 · Airborne Auxiliary Power Unit (APU) System
  > ON TAXI IN, APU START RESULTED IN FAULT LIGHT ILLUM. GROUNDED - YES. ACCOMP APU BITE CK REF B737-9 AMM 49-61-00. RECORDED FAULT MSG 49-41254 SCU SHOWS START SYS INOP IN EXISTING FAULTS. ACCOMP B737-9 IFIM 49-40-00-810-818 STARTED APU 2EA TIMES WITH NO FAULT LI
- [SDR ASAA2022112040859](https://openairdocs.org/sdr/ASAA2022112040859.md): Fmc · failed · Nov 20, 2022 · N953AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE MESSAGE: FOLLOWED QRH PROCEDURE, RESET C/B'S; MESSAGE NO LONGER DISPLAYED. GROUNDED - YES. ACCOMPLISHED FMC OPS CKS REF B737-9 AMM 34-61-00 OPS NORMAL.
- [SDR ASAA2022111940863](https://openairdocs.org/sdr/ASAA2022111940863.md): Ecu · faulty · Nov 19, 2022 · N953AK · Boeing 7379 · APU Controls
  > IN 2 APU START ATTEMPTS, AS SOON AS SWITCH IS SELECTED TO START, APU FAULT LIGHT ILLUMINATES. GROUNDED - YES. CHECK FOUND MESSAGE NBR 31-01011 NO INPUT FROM APU ECU. REPLACED APU ECU, PERFORMED GOOD INTALLATION TEST REF B737-9 AMM 49-61-12/401.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE n_number = 'N953AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N953AK/reports

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