# Service difficulty reports: N971AK

A list on [N971AK](https://openairdocs.org/aircraft/N971AK.md).

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

- [SDR ASAA2025040757164](https://openairdocs.org/sdr/ASAA2025040757164.md): Trim Panel · out of position · Apr 7, 2025 · N971AK · Boeing 7379 · Passenger/Crew Doors
  > WHILE ATTEMPTING TO CLOSE L-1 DOOR, TRIM PIECES ARE SNAGGING, UNABLE TO CLOSE DOOR FULLY RE-OPENED DOOR, TRIED AGAIN - SAME. GROUNDED - YES. CLOSED DOOR WITH INTERIOR HANDLE. NO DEFECTS NOTED DURING DOOR OPERATION. INSPECTED ENVIRONMENTAL AND PRESSURE SEALS FO
- [SDR ASAA2025021255950](https://openairdocs.org/sdr/ASAA2025021255950.md): Light · missing · Feb 12, 2025 · N971AK · Boeing 7379 · Emergency Lighting
  > AIRCRAFT LEFT SIDE ROW 12 ESCAPE PATH LIGHTING MISSING. GROUNDED - YES. REPLACED PHOTOLUMINESCENT STRIP REF AMM 33-51-15.
- [SDR ASAA2025011855421](https://openairdocs.org/sdr/ASAA2025011855421.md): Lamp · inoperative · Jan 18, 2025 · N971AK · Boeing 7379 · Emergency Lighting
  > L1 SLIDE EXTERIOR EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED L1 SLIDE EXTERIOR LIGHT REF AMM 33-51-04 ALL GND TESTS PASSED.
- [SDR ASAA2024081251742](https://openairdocs.org/sdr/ASAA2024081251742.md): Light · inoperative · Aug 12, 2024 · N971AK · Boeing 7379 · Emergency Lighting
  > FA REPORTS EMERGENCY LIGHT/ GLOW STRIPS IN FIRST CLASS ONLY AREA ARE DISCOLORED PURPLE AND NO LONGER GLOW. GROUNDED - YES. REMOVED AND REPLACED FIRST CLASS R/H EMERGENCY PHOTOLUMINECENT STRIP FOR ROW 1&2 DF PER AMM 33-51-15. OPS CHECK GOOD.
- [SDR ASAA2024041149043](https://openairdocs.org/sdr/ASAA2024041149043.md): Lamp · inoperative · Apr 11, 2024 · N971AK · Boeing 7379 · Emergency Lighting
  > R1 DOOR EMERGENCY SLIDE DOOR LIGHT INOP. GROUNDED - YES. REMOVED AND REPLACED R1 DOOR EMERGENCY LIGHT LAMP REF AMM 33-51-04. OPC GOOD.
- [SDR ASAA2023110646045](https://openairdocs.org/sdr/ASAA2023110646045.md): Unknown · unknown · Nov 6, 2023 · N971AK · Boeing 7379 · Fuel Controlling System
  > FLIGHT CREW REPORTS ON PREFLIGHT, MAINT LIGHT ILLUMINATING. GROUNDED - YES. MDS STATUS INDICATES ENG 1 CONTROL W/ A CORRESPONDING, NOT-ACTIVE MESSAGE OF 73-42701. CONFIGURED EEC POWER SELECTION FOR FLIGHT/NORMAL. PER IFIM G73-21-00-810-847, INITIAL EVALUATION
- [SDR ASAA2023110346012](https://openairdocs.org/sdr/ASAA2023110346012.md): Unknown · unknown · Nov 3, 2023 · N971AK · Boeing 7379 · Cabin Cooling System
  > FOUND OPEN C/B - PACK CONT VALVES L ALT LOCATED AT P6-4 D3. GROUNDED - YES. INSPECTED & RESET PACK CONT VALVES L ALT PER AMM 20-60-01. C/B REMAINS RE-SET. ACCOMPLISHED OPS CHECK OF PACK FLOW CONTROL VALVE PER AMM 21-51-00, OPS CHECK GOOD. SUCCESSFUL VERIFICATI
- [SDR ASAA2023110145986](https://openairdocs.org/sdr/ASAA2023110145986.md): Unknown · unknown · Nov 1, 2023 · N971AK · Boeing 7379 · APU Start/Ignition System
  > APU "FAULT" LIGHT ON GRND START. FAULT CODE 49-41254 (MAINTENANCE CODE) STARTER CONVERTER UNIT SHOWS START SYSTEM INOP. GROUNDED - YES. PERFORMED APU BITE - FOUND FAULT CODE 49-41012. RMVD AND REINSTALLED SCU. STARTED APU 3X - NO ISSUES. SYS OPS NML. REF IFIM
- [SDR ASAA2023102145771](https://openairdocs.org/sdr/ASAA2023102145771.md): Unknown · unknown · Oct 21, 2023 · N971AK · Boeing 7379 · Fuel Controlling System
  > FOUND LATCH FAULT #1 ENG EEC C1. GROUNDED - YES. NO CORRELATE FAULTS NOTED. CLEARED LATCHED MSG. C/W B737-9 IFIM TASK G73-20-00-810-855. ENG IDLE TEST PASSED. NO FAULTS FOUND.
- [SDR ASAA2023101645687](https://openairdocs.org/sdr/ASAA2023101645687.md): Unknown · unknown · Oct 16, 2023 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > MOMENTARY LEFT VTK MSG AP DISCONNECTED AT FL 330, REVERTED TO CWS SYSTEM RESOLVED ITSELF. GROUNDED - YES. PERFORMED B737-9 IFIM 31-00-00-810-803. FOUND NO ACTIVE CORRELATED MESSAGE.
- [SDR ASAA2023091645156](https://openairdocs.org/sdr/ASAA2023091645156.md): Unknown · unknown · Sep 16, 2023 · N971AK · Boeing 7379 · Fuel Indicating System
  > AT FL 350 WITH 1400 LBS IN CENTER TANK AND A DECK ANGLE OF 2.5 DEGREES WINGS LEVEL WITH SMOOTH RIDE LEFT CENTER PUMP LOW PRESS LIGHT ILLUMINATED WITH PUMP IN ON POSITION ATTEMPTED CYCLE OF PUMP SWITCH WITH NO CHANGE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090644963](https://openairdocs.org/sdr/ASAA2023090644963.md): Unknown · unknown · Sep 6, 2023 · N971AK · Boeing 7379 · Weather Radar System
  > WXR FAIL IN FLIGHT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090344915](https://openairdocs.org/sdr/ASAA2023090344915.md): Unknown · unknown · Sep 3, 2023 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > FLIGHT CREW REPORTS VTK FLAG ON PILOT SIDE. GROUNDED - YES. FOUND INTERMITTENT FAULT MESSAGE 34-69001. CYCLED FMC 1 CB AND NO DEFECTS NOTED REF IFIM 34-61-00-810-836.
- [SDR ASAA2023082544799](https://openairdocs.org/sdr/ASAA2023082544799.md): Unknown · unknown · Aug 25, 2023 · N971AK · Boeing 7379 · Engine Temperature Indicating System
  > 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
- [SDR ASAA2023081144546](https://openairdocs.org/sdr/ASAA2023081144546.md): Unknown · unknown · Aug 11, 2023 · N971AK · Boeing 7379 · HF Communications System
  > 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.
- [SDR ASAA2023080344398](https://openairdocs.org/sdr/ASAA2023080344398.md): Unknown · unknown · Aug 3, 2023 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE LT ON BOTH PFD'S. GROUNDED - YES. FMC DISAGREE NO LONGER PRESENT, FMC OPS NORMAL REF IFIM 34-61-00-810-918, NO HISTORY PAST 30 DAYS.
- [SDR ASAA2023071043966](https://openairdocs.org/sdr/ASAA2023071043966.md): Unknown · unknown · Jul 10, 2023 · N971AK · Boeing 7379 · Engine Indicating System
  > WHILE PERFORMING TASK CARD 05-020-01 FOUND NO. 2 ENG EEC ECONOMIC FAULT 77-41634 "EGT PROBE 3 VALVE DOES NOT AGREE". GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062743759](https://openairdocs.org/sdr/ASAA2023062743759.md): Motor · faulty · Jun 27, 2023 · N971AK · Boeing 7379 · Fuel Boost Pump
  > LEFT CENTER PUMP LOW PRESSURE LIGHT ILLUMINATED WHEN TURNED ON AT CRUISE ALT. GROUNDED - YES. REVERSED CONFIGURATION CHANGES OF MEL 28-22-02A, CONFIRMED CIRCUIT BREAKER DOES NOT TRIP AND GFI R54 IS NOT TRIPPED. PUMP OPERATES BUT DOES NOT SOUND GOOD AND LOW PRE
- [SDR ASAA2023061943808](https://openairdocs.org/sdr/ASAA2023061943808.md): Nozzle · coked · Jun 19, 2023 · N971AK · Boeing 7379 · Engine Fuel Distribution
  > GE DIAGNOSTICS REPORTS #2 ENGINE (SN 602613) TREND DATA SHOWS EXCESS COKING OF THE FUEL NOZZLE MAIN ORIFICES. (FULL SET FUEL NOZZLE REPLACEMENT 737MAX T/C 73-ASA-02) NO EXTENSION ALLOWED (225 CYCLES/45 DAYS). GROUNDED - YES. REPLACED FULL SET OF FUEL NOZZLES O
- [SDR ASAA2023061943638](https://openairdocs.org/sdr/ASAA2023061943638.md): Lens · detached · Jun 19, 2023 · N971AK · Boeing 7379 · Emergency Lighting
  > FA REPORTS THAT THE LENS COVER ( EXIT SIGN) ON L1 DOOR HAS FALLEN OFF. GROUNDED - YES. REPLACED EXIT SIGN LENS BY L1 DOOR.
- [SDR ASAA2023060443688](https://openairdocs.org/sdr/ASAA2023060443688.md): Unknown · unknown · Jun 4, 2023 · N971AK · Boeing 7379 · Turbine Engine Air Inlet Section
  > ON ENGINE #1 CRACK FOUND IN ABRADABLE SHROUD AT 9 O'CLOCK POSTION. GROUNDED - YES. ON DEFERRAL. CRACK FOUND TO BE WITHIN DEFERRABLE LIMITS A/C RELEASED FOR SERVICE WITHIN 100 CYCLES PERFORM TAP TEST INSPECTION AT CRACKS LOCATION REF: AMM 72-21-00-200-802-G00 (
- [SDR ASAA2023053043412](https://openairdocs.org/sdr/ASAA2023053043412.md): Unknown · unknown · May 30, 2023 · N971AK · Boeing 7379 · Independent Position Determining System
  > WEATHER RADAR FAILED. WXR FAIL FLAG AND PWS FAIL FLAG. GROUNDED - YES. OMF SHOWS MAINTENANCE MESSAGE 34-43101 AND 34-43107 LOGGED ON PREVIOUS FLIGHT LEG. ACCOMPLISHED B737-9 FIM 34-41-00-810-818 AND 34-41-00-810-837 INITIAL EVALUATION SHOWS NO FAULTS DETECTED
- [SDR ASAA2023040442720](https://openairdocs.org/sdr/ASAA2023040442720.md): Exciter · faulty · Apr 4, 2023 · N971AK · Boeing 7379 · Ignition Power Supply
  > ENG # 2 WOULD NOT START W/IGN SWITCH SET TO IGN R. GROUNDED - YES. REMOVED AND REPLACED RH IGNITION EXCITER IAW B737-9 AMM 74-11-01.
- [SDR ASAA2023032042432](https://openairdocs.org/sdr/ASAA2023032042432.md): Unknown · unknown · Mar 20, 2023 · N971AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > LEFT SIDE WINDOW HEAT CAUTION ILLUMINATED ON TAXI - IN. QRH PROCEDURE ACCOMPLISHED WITH NORMAL OPS AFTER RESET. GROUNDED - YES. PERFORMED WINDOW HEAT SYSTEM OPS TEST IAW B737-9 AMM 30-41-00-710-801. TEST OK. NO FAULTS. A/C OK FOR SVC.
- [SDR ASAA2023022842121](https://openairdocs.org/sdr/ASAA2023022842121.md): Unknown · unknown · Feb 28, 2023 · N971AK · Boeing 7379 · Emergency Lighting
  > MID CABIN OVERHEAD EXIT DROPPED FROM CEILING. GROUNDED - YES. SECURED EMERGENCY EXIT LIGHT TO CEILING PANEL AS REQUIRED OPS CK GOOD.
- [SDR ASAA2023022542082](https://openairdocs.org/sdr/ASAA2023022542082.md): Unknown · unknown · Feb 25, 2023 · N971AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. RAN QRH ON GROUND FOR RIGHT SIDE WINDOW OVERHEAT, LIGHT EXTINGUISHED.
- [SDR ASAA2023022442073](https://openairdocs.org/sdr/ASAA2023022442073.md): Unknown · unknown · Feb 24, 2023 · N971AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > RIGHT SIDE WINDOW OVERHEAT LIGHT ILLUMINATED ON GROUND. GROUNDED - YES. RAN QRH ON THE GROUND FOR R SIDE WINDOW OVERHEAT LIGHT. REMAINED EXTINGUISHED.
- [SDR ASAA2023022242039](https://openairdocs.org/sdr/ASAA2023022242039.md): Unknown · unknown · Feb 22, 2023 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE DISPLAYED ON BOTH ND'S. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918. FMCS RESTORED. OPS CHECK GOOD. GROUND VERIFICATION TESTS GOOD.
- [SDR ASAA2023012741708](https://openairdocs.org/sdr/ASAA2023012741708.md): Valve · locked · Jan 27, 2023 · N971AK · Boeing 7379 · Pneumatic Distribution System
  > MAINT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. FOUND ACTIVE FAULT 36-12021 "ENGINE 2 FAMV IS NOT IN COMMAND POSITION". REMOVED AND REPLACED THE FAMV PER B737-9 AMM 36-12-03-400-801. OPS CHECK 36-00-00-730-801 FAILED. AFTER FURTHER INVESTIGATION FOUND T
- [SDR ASAA2022122741296](https://openairdocs.org/sdr/ASAA2022122741296.md): Fmc · faulted · Dec 27, 2022 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > DURING PREFLIGHT FMC DISAGREE DISPLAYED ON BOTH ND DISPLAYS. GROUNDED - YES. RESET FMC ON CDU PER B737-9 IFIM 34-61-00-810-918.
- [SDR ASAA2022122041196](https://openairdocs.org/sdr/ASAA2022122041196.md): Fms · false indication · Dec 20, 2022 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE MESSAGE. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918, FMC'S RETURNED TO NORMAL, NO FAULTS, GRD VERIFICATION SUCCESSFUL.
- [SDR ASAA2022120841091](https://openairdocs.org/sdr/ASAA2022120841091.md): Anti-Ice Valve · warning light · Dec 8, 2022 · N971AK · Boeing 7379 · Air Intake Anti/De-Ice System
  > #2 ENGINE ANTI-ICE COWL VALVE LIGHT ILLUMINATED WITH ANTI-ICE SWITCH ON. GROUNDED - YES. PERFORMED ENGINE ANTI-ICE SYSTEM OPERATIONAL TEST WITH ENGINE IDLE RUN. SYSTEM OPERATED CORRECTLY WITH NO DEFECTS NOTED. COWL VALVE LIGHT DID NOT ILLUMINATE DURING IDLE RU
- [SDR ASAA2022092140010](https://openairdocs.org/sdr/ASAA2022092140010.md): Fmc · failed · Sep 21, 2022 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > CAPTAIN FMC FAILED FOR AROUND 1 MINUTE. GROUNDED - YES. FMC RESTORED ITSELF. NO CURRENT FAULT.
- [SDR ASAA2022081239490](https://openairdocs.org/sdr/ASAA2022081239490.md): Satcom · inoperative · Aug 12, 2022 · N971AK · Boeing 7379 · HF Communications System
  > NO SATCOM ON FMC. GROUNDED - YES. REMOVED AND REPLACED SATCOM SDU PER B737-9 AMM 23-15-01.
- [SDR ASAA2022070738998](https://openairdocs.org/sdr/ASAA2022070738998.md): Gearbox · worn · Jul 7, 2022 · N971AK · Boeing 7379 · Turbine Engine Accessory Drive
  > FOUND DAMAGE ON MATING SURFACE OF TRANSFER G/B SLIDER WHILE ACCOMPLISHING SBLEAP-1B-72-0317-BS7-1 #1 ENGINE. GROUNDED - YES. FOUND DAMAGE ON EDGE FLANGE PART IS OUT OF LIMITS NO DAMAGE ALLOWED IN THIS AREA REF B737-9 AMM 72-60-00-200-801-G00 STEP 2 (H4). REMOV
- [SDR ASAA2022041337979](https://openairdocs.org/sdr/ASAA2022041337979.md): Fmc · faulty · Apr 13, 2022 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > 2 PLUS 40 INTO FLIGHT AT FL340 BOTH FMC'S FAILED CRUISE FL340 FOR 30-45 SECONDS. THEY BOTH RE-BOOTED WITHOUT ANY PILOT INTERACTION AND OPERATED NORMALLY. GROUNDED - YES. NO ACTIVE FMC FAULTS. FMC FLT HISTORY ONLY SHOWING RH FMC FAULT ON LAST LEG. CYCLED RH FMC
- [SDR ASAA2022032737942](https://openairdocs.org/sdr/ASAA2022032737942.md): None · none · Mar 27, 2022 · N971AK · Boeing 7379 · Engine Fuel Indicating System
  > WHILE PERFORMING T/C #05-020-01, #1 ENG HAS FAULT CODE 73-41992 FUEL COOLED OIL COOLER (FCOC) DELTA PRESSURE SENSOR IS OUT OF RANGE, ENG 1 EEC C2, PRESENT IN SMT. GROUNDED - YES. MAINTENANCE MESSAGE 73-41992 IS LATCHED ON # 1 ENGINE. PERFORMED RESISTANCE CHECK
- [SDR ASAA2022032337755](https://openairdocs.org/sdr/ASAA2022032337755.md): Fmc · abnormal · Mar 23, 2022 · N971AK · Boeing 7379 · Flight Management Computing Hardware System
  > ENROUTE AT FL 360, BOTH FMC'S WENT BLANK FOR ABOUT 20 SEC. VTK APPEARED ON LEFT NAV DISPLAY. MENU PAGE DID NOT HAVE FMC DISPLAYED. AFTER ABOUT 20 SEC FMC PROMPT REAPPEARED AND WENT BACK TO NORMAL OPS. GROUNDED - YES. FAULT WAS ONLY L/H FMC, CREW STATED NML OPS
- [SDR ASAA2022032337749](https://openairdocs.org/sdr/ASAA2022032337749.md): Unknown · unknown · Mar 23, 2022 · N971AK · Boeing 7379 · Cabin Temperature Control System
  > ON TOUCHDOWN MAINT ON OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. LAST LEG STATUS MESSAGE 21-6515 "CONTROL CABIN TRIM AIR VALVE SIGNAL OUT OF RANGE". PERF B737-9 IFIM 21-61-00-810-841. BITE TEST OF R/H IASC - TEST PASS - FAULT RESET / MAINT LIGHT EXTINGUISHED.

## 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 = 'N971AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N971AK/reports

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