# Service difficulty reports: N943AK

A list on [N943AK](https://openairdocs.org/aircraft/N943AK.md).

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

- [SDR ASAA2026061666860](https://openairdocs.org/sdr/ASAA2026061666860.md): Lamp · inoperative · Jun 16, 2026 · N943AK · Boeing 7379 · Emergency Lighting
  > OVERWING EXIT AFT EMERGENCY LIGHT INOPERATIVE, GROUNDED - YES. REPLACED OVERWING (LH) EXIT EMERGENCY LAMP LIGHT IAW AMM 33-51-04-960-801. TEST GOOD.
- [SDR ASAA2026061666851](https://openairdocs.org/sdr/ASAA2026061666851.md): Bulb · inoperative · Jun 16, 2026 · N943AK · Boeing 7379 · Emergency Lighting
  > OVERWING EXIT AFT EMERGENCY LIGHT INOP L/HSRXR430X. GROUNDED - YES. REPLACED OVERWING (LH) EXIT EMERGENCY LAMP LIGHT IAW B737 AMM 33-51-04-960-801. TEST GOOD. SRXR430X.
- [SDR ASAA2025110262038](https://openairdocs.org/sdr/ASAA2025110262038.md): Sign · detached · Nov 2, 2025 · N943AK · Boeing 7379 · Emergency Lighting
  > OVERWING EXIT SIGN ON RIGHT SIDE FELL OFF. GROUNDED - YES. REATTACHED OVERWING EXIT SIGN ON RIGHT SIDE. OKAY FOR CONTINUED SERVICE.
- [SDR ASAA2024060750161](https://openairdocs.org/sdr/ASAA2024060750161.md): Lamp · inoperative · Jun 7, 2024 · N943AK · Boeing 7379 · Emergency Lighting
  > WHILE ACCOMPLISHING TASK CARD # 33-010-00 FOUND R2 EXTERIOR EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED R2 EXTERIOR EMERGENCY LIGHT REF AMM 33-51-04. OPS CHECK GOOD.
- [SDR ASAA2023101645685](https://openairdocs.org/sdr/ASAA2023101645685.md): Unknown · unknown · Oct 16, 2023 · N943AK · Boeing 7379 · Central Warning
  > MASTER CAUTION ANTI-ICE ILLUMINATED AND EXTINGUISHED WITHIN 2 SECONDS, UNABLE TO DETERMINE WHICH ENG ANTI-ICE SYSTEM WAS TRIGGERED - TAT 9*C, VISIBLE RAIN. GROUNDED - YES. NO STATUS MESSAGES OR FAULTS LOGGED. WITH CREW ASSISTANCE RAN BOTH ENGINES FOR ANTI-ICE
- [SDR ASAA2023091845199](https://openairdocs.org/sdr/ASAA2023091845199.md): Unknown · unknown · Sep 18, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > CAPT FMC SWITCHED TO MAIN MENUE AND "VTK" ON ND, MAP DISPLAY WENT AWAY THEN CAME BACK, ALL LASTED ABOUT 15 SECONDS. 10 MIN LATER F.O.'S FMC WENT TO MAIN MENUE, HIS MAP FLICKERED AND GOT "VTK" FOR JUST A COUPLE SECONDS, THEN CAME BACK ON LINE. THEN WITHIN THE N
- [SDR ASAA2023090144932](https://openairdocs.org/sdr/ASAA2023090144932.md): Unknown · unknown · Sep 1, 2023 · N943AK · Boeing 7379 · Aircraft Fuel System
  > LEFT CENTER FUEL PUMP "LOW PRESSURE" LIGHT DID NOT ILLUMINATE WHEN FUEL WAS EXHAUSTED WHILE IN CRUISE. LIGHT ILLUMINATES WHEN TESTED. WAITED UNTIL MAIN TANKS WERE AT 6500 LBS EACH, THEN SELECTED OFF. GROUNDED - YES. FOUND LH CTR PUMP PRESSURE SWITCH CONNECTOR
- [SDR ASAA2023082944854](https://openairdocs.org/sdr/ASAA2023082944854.md): Modulating Valve · unknown · Aug 29, 2023 · N943AK · Boeing 7379 · Pneumatic Distribution System
  > MAINT LIGHT ILLUMINATED AFTER LANDING WITH THE THRUST REVERSER DESPLAYED. GROUNDED - YES. "BLEED FAMV R" ASSOCIATED WITH MAINT. MESSAGE 36-12021 "ENGINE - 2 FAMV IS NOT IN COMMANDED POSITION." (AV 87105 08/29/2023.) ALTERNATE DEACTIVATED PROCEDURE USED PER CHA
- [SDR ASAA2023073144349](https://openairdocs.org/sdr/ASAA2023073144349.md): Unknown · unknown · Jul 31, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > NO.1 FMC FAILED IN FLIGHT FOLLOWED BY FMC RESTART. GROUNDED - YES. FAULT MESSAGE 34-69001 IN FAULT HISTORY. NOT LATCHED. CYCLED CB'S FOR FMC #1 & #2 REF FIM 34-61-00. OK FOR SERVICE.
- [SDR ASAA2023072444202](https://openairdocs.org/sdr/ASAA2023072444202.md): Unknown · unknown · Jul 24, 2023 · N943AK · Boeing 7379 · Fuel Controlling System
  > FOUND AMBER MAINT LIGHT ON. GROUNDED - YES. STATUS PAGE SHOWING: ENG 1 FAN COMP OVHT SENSOR, ENG 1 CONTROL, ENG 1 REVERSER. FOUND P91 MAINT S/W ENABLE, AND EEC 1 IN TEST MODE. ACCOMPLISHED IFIM TASK G73-20-00-810-869. NO FAULT HISTORY OR CORRELATED MSG. EEC1 M
- [SDR ASAA2023071844120](https://openairdocs.org/sdr/ASAA2023071844120.md): Unknown · unknown · Jul 18, 2023 · N943AK · Boeing 7379 · Communications System
  > UNABLE TO TRANSIT ON HF#1, HOWEVER,ABLE TO RECEIVE ON HF#1.HF#2 OPERATING NORMALLY. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023071644072](https://openairdocs.org/sdr/ASAA2023071644072.md): Unknown · unknown · Jul 16, 2023 · N943AK · Boeing 7379 · HF Communications System
  > HF 1 NOT WORKING CORRECTLY RECIVE BUT NOT TRANSMIT HF2, SATCOM AND DATALINK ALL WORK CORRECTLY. GROUNDED - YES. PERFORM IFIM TASK 23-11-00-810-813 NO ATA 23 FOUND IN OMF PERFORM HF SYSTEM TEST IAW AMM 23-1-00-730-801. HF1 TRANSMITTED AND RECEIVED NO DEFECT NOT
- [SDR ASAA2023070243877](https://openairdocs.org/sdr/ASAA2023070243877.md): Unknown · unknown · Jul 2, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > WHILE IN FLIGHT, LEFT FMC FAILED. CAPTAIN'S NAV DISPLAY SHOWED VTK FLAG. NO FMC DATA WAS ON CAPTAIN'S NAV DISPLAY MAP MODE. FMC DATA WAS LOST ON BOTH CDUS. AFTER 30 SECONDS, SYSTEM RESUMED NORMAL OPERATION. GROUNDED - YES. RESET FMC'S REF IFIM TASK 34-61-00-81
- [SDR ASAA2023052643381](https://openairdocs.org/sdr/ASAA2023052643381.md): Unknown · unknown · May 26, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > INTERMITTENT DUAL FMC FAIL AT FL 390. LASTED ABOUT 60 SEC THEN RECOVERED. GROUNDED - YES. VERIFIED FMC FAILED R/H FMC PRES POS LAT RATE & L/H FMC HAD CDU R RATE BOTH ARE INTERMITTENT. CYCLED BOTH FMC COMP. ACCOMPLISHED SENSOR STATUS TEST BOTH PASS TEST REF B73
- [SDR ASAA2023042443006](https://openairdocs.org/sdr/ASAA2023042443006.md): Separator · fod · Apr 24, 2023 · N943AK · Boeing 7379 · Engine Oil Distribution (Airframe Furnished)
  > ON LANDING MASTER CAUTION CAME ON WITH MAINT LIGHT ON OVERHEAD. GROUNDED - YES. FOUND FAULT CODES FOR ENGINE #2 ODMS. RELEASED PER MEL 79-21-01A #2 ENGINE ODMS INOP. COMPLETED B737-9 IFIM TASK G79-21-00-810-811 STEP A THRU B.(8). AIR/OIL SEPARATOR REPLACED WIT
- [SDR ASAA2023041842921](https://openairdocs.org/sdr/ASAA2023041842921.md): Unknown · unknown · Apr 18, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > LEVEL IN CRUISE FLIGHT LEFT FMC FAILED WITH AN AUTO RECOVERY 10 SECONDS LATER. GROUNDED - YES. ACCOMPLISHED FMC OPS CKS REF B737-9 AMM 34-61-00 OPS NML, NO HISTORY PAST 30 DAYS.
- [SDR ASAA2023040642749](https://openairdocs.org/sdr/ASAA2023040642749.md): Fmc · failed · Apr 6, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > RT FMC FAILED IN FLIGHT. COMPLETED QRH PROCEDURE NO RESTORE OCCURRED. CONTINUED SINGLE (LT FMC GOOD) FMC OPERATION WITH FMC SOURCE SELECTOR SWITCH SET TO "BOTH ON L". GROUNDED - YES. REMOVED AND REPLACED FMCS COMPUTER IAW B737-9 AMM 34-61-01A.
- [SDR ASAA2023031442345](https://openairdocs.org/sdr/ASAA2023031442345.md): Unknown · unknown · Mar 14, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE. GROUNDED - YES. RESET PROCEDURE PER QRH PERFORMED ON GROUND. CLEARED.
- [SDR ASAA2023022642081](https://openairdocs.org/sdr/ASAA2023022642081.md): Module · faulty · Feb 26, 2023 · N943AK · Boeing 7379 · APU Indicating System
  > AIRCRAFT IS REPORTING REPETITIVE APU DMM CIRCUIT FAULT, 49-72105. GROUNDED - YES. PERFORMED TROUBLESHOOTING IAW B737-9 IFIM TASK 49-70-00-810-808. NO FAULTS FOUND. REMOVED AND REPLACED DATA MEMORY MODULE PREXCAUTIONARY IN REFERENCE WITH B737-9 AMM 49-72-11.
- [SDR ASAA2023022442071](https://openairdocs.org/sdr/ASAA2023022442071.md): Unknown · unknown · Feb 24, 2023 · N943AK · Boeing 7379 · Airfoil Anti/De-ice System
  > WING ANTI-ICE "LEFT VALVE" LIGHT ILLUMINATED AFTER WING ANTI-ICE SELECTED ON. APPLIED QRH PROCEDURE AND TURNED SWITCH OFF. LIGHT EXTINGUISHED. GROUNDED - YES. PERFORMED B737-9 AMM TASK 30-11-11-200-801 OPS CHECK GOOD FOUND NO FAULTS.
- [SDR ASAA2023021641970](https://openairdocs.org/sdr/ASAA2023021641970.md): Unknown · unknown · Feb 16, 2023 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE DURING PREFLIGHT. GROUNDED - YES. PULLED C/B'S ACCORDING TO QRH FMS-NAVIGATION. FMC DISAGREE. RESET SUCCESSFUL.
- [SDR ASAA2023020641865](https://openairdocs.org/sdr/ASAA2023020641865.md): Unknown · unknown · Feb 6, 2023 · N943AK · Boeing 7379 · Fuel Controlling System
  > WHILE ACCOMPLISHING ASA T/C 05-020-01 FOUND MAINTENANCE MESSAGE 73-43855 NO. 2 ENG INLET T12 TEMP SENSOR DISAGREE. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK G73-20-00-810-830. FOUND FAULT TO BE INTERMITTENT.
- [SDR ASAA2023010321339](https://openairdocs.org/sdr/ASAA2023010321339.md): Anti-Ice Valve · faulted · Dec 29, 2022 · N943AK · Boeing 7379 · Airfoil Anti/De-ice System
  > RIGHT WING ANTI-ICE VALVE DID NOT OPEN W/ WING ANTI-ICE SWITCH ON. GROUNDED - YES. PERFORMED WING ANTI-ICE VALVE HEALTH CHECK ON RH WING TAI REF ASA T/C MAX-30EA-24968. OPS CHECK NORMAL AND NO DEFECTS NOTED. A/C OK FOR CONTINUED SERVICE.
- [SDR ASAA2022121641163](https://openairdocs.org/sdr/ASAA2022121641163.md): Processor · failed · Dec 16, 2022 · N943AK · Boeing 7379 · Weather Radar System
  > WXR FAIL ILLUMINATED. GROUNDED - YES. WEATHER RADAR PROCESSOR REMOVED/REPLACED IAW B737-9 AMM 34-41-42 SYSTEM TESTED OK.
- [SDR ASAA2022102040420](https://openairdocs.org/sdr/ASAA2022102040420.md): Fmc · intermittent · Oct 20, 2022 · N943AK · Boeing 7379 · Flight Management Computing Hardware System
  > TEMPORARILY LOST BOTH NAV DISPLAYS WITH VTK APPEARING ON BOTH NAV DISPLAY SCREENS AND FMC BLANKING / DEFAULTING TO MENU MODE. SYSTEM SELF-CORRECTED IN 40-60 SECONDS. ALL NORMAL. GROUNDED - YES. VERIFIED OPERATION OF FMC NORMAL REF B737-9 AMM 34-61-00-710-801.
- [SDR ASAA2022100840203](https://openairdocs.org/sdr/ASAA2022100840203.md): Sensor · faulty · Oct 8, 2022 · N943AK · Boeing 7379 · Attitude Gyro and Indicating System
  > RIGHT ALPHA VANE SENSOR CAUTION LIGHT REMAINED ILLUMINATED. GROUNDED - YES. REMOVED/REPLACED R/H AOA SENSOR REF B737-9 AMM 34-21-05. OPS CHECK GOOD.

## 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 = 'N943AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N943AK/reports

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