# Service difficulty reports: N931AK

A list on [N931AK](https://openairdocs.org/aircraft/N931AK.md).

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

Page 1 of 2 · 58 reports

- [SDR ASAA2025092761250](https://openairdocs.org/sdr/ASAA2025092761250.md): Seat Track · damaged · Sep 27, 2025 · N931AK · Boeing 7379 · Fuselage, Seat/Cargo Attach Fittings
  > AFTER FITHER INSPECTION CAPTAIN SEAT TRACK IS DAMAGED (AFT I/B). SRXR430X. GROUNDED - YES. REMOVED AND REPLACED CAPITAN AFT I/B SEAT TRACK IAW IPECO CMM 53-01-02. SRXR430X.
- [SDR ASAA2025032956965](https://openairdocs.org/sdr/ASAA2025032956965.md): Lens · missing · Mar 29, 2025 · N931AK · Boeing 7379 · Emergency Lighting
  > 16A EXIT SIGN COVER MISSING ON LOWER WALL. GROUNDED - YES. REPLACED EXIT SIGN COVER AT ROW 16A AS REQUIRED.
- [SDR ASAA2025021456023](https://openairdocs.org/sdr/ASAA2025021456023.md): Indication Sys · malfunctioned · Feb 14, 2025 · N931AK · Boeing 7379 · Fuel Indicating System
  > RIGHT MAIN TANK FUEL QTY IND STILL APPEARS TO BE ERRONEOUS. ON GROUND AFTER REFUELING, BOTH MAIN TANKS WERE WITHIN 20 LBS OF EACH OTHER. AFTER PUSH & ENG START OF NR 1 ENG, RT MAIN SHOT UP TO 8.89. THIS TREND CONTINUED THROUGH TAKEOFF, CLIMB & CRUISE UP TO 9.
- [SDR ASAA2025021456019](https://openairdocs.org/sdr/ASAA2025021456019.md): Indication Sys · malfunctioned · Feb 14, 2025 · N931AK · Boeing 7379 · Fuel Indicating System
  > RIGHT MAIN TANK FUEL QUANTITY INDICATION APPEARS TO BE ERRONEOUS. JUST PRIOR TO CENTER FUEL EMPTYING RIGHT MAIN QTY JUMPED TO 9140 LBS, WHERE IT STABILIZED FOR A FEW MINUTES. IT THEN BEGUN COUNTING DOWN NORMALLY. HOWEVER; THERE IS APPROXIMATELY A 1000 LB SPLIT
- [SDR ASAA2024070850861](https://openairdocs.org/sdr/ASAA2024070850861.md): Light · missing · Jul 8, 2024 · N931AK · Boeing 7379 · Emergency Lighting
  > FLOOR TRIM ON RIGHT SIDE OF CENTER AISLE CARPET STICKING UP BY ROW 1. GROUNDED - YES. FOUND THAT FLOOR PROXIMITY LIGHTING COMING UP SHARP EDGE AMD MISSING IN A 10.5 INCH SECTION, ALSO PROTECTIVE PLASTIC COVER CRACKED MISSING R&R PER AMM 33-51-15-960-801 A/C OK
- [SDR ASAA2023110846112](https://openairdocs.org/sdr/ASAA2023110846112.md): Modulating Valve · faulty · Nov 8, 2023 · N931AK · Boeing 7379 · Engine Bleed Air System
  > TECH SERVICES REQUEST FOR FOLLOW-UP TO MTX LIGHT & FAULT(RIGHT FAMV FAULT 36-12021)----(#PRI1)----ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. (RESOLVED ON W/O: 1976146 TASKCARD: N/R-00002) REPLACED FAMV - REF AMM 36-12-03. OPS CHECKED GOOD.
- [SDR ASAA2023110846074](https://openairdocs.org/sdr/ASAA2023110846074.md): Control Unit · faulty · Nov 8, 2023 · N931AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > L D=FWD WINDOW HEAT, OVERHEAT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROLLER BITE IAW IFIM 30-41-11-710-801. NO FAULTS. REMOVED AND REPLACED M00321 WINDOW CONTROLLER IAW AMM 30-41-11 PRECAUTIONARY. OPS CKS GODD. SEAMC STEVE N
- [SDR ASAA2023110646062](https://openairdocs.org/sdr/ASAA2023110646062.md): Unknown · unknown · Nov 6, 2023 · N931AK · Boeing 7379 · Pneumatic Distribution System
  > ON ROLLOUT FROM LANDING MAIT LIGHT OVER HEAD PANEL ILLUMINATED. GROUNDED - YES. PERFORMED FIM TASK 36-12-00-810-802 PNEUMATIC ENG ON SYS TEST FOR R/H.TEST PASSED MAINT MSG CLEARED. FAULT IS INTTERMITTENT SEAMC WILL NOTIFIED NO HISTORY IN 30 DAYS.
- [SDR ASAA2023102445814](https://openairdocs.org/sdr/ASAA2023102445814.md): Actuator · faulty · Oct 24, 2023 · N931AK · Boeing 7379 · APU Bleed Air System
  > BOTH DUCT PRESSURE NEEDLES FLUCTUATE BETW 20-28 PSI WHILE ON APU BLEED AIR ON THE GROUND. GROUNDED - YES. (RESOLVED ON W/O: 1974919 TASKCARD: N/R-00001) FOUND FAULT MESSAGE 49-52192. "IGV ACTUATOR LVDT SHOWS CIRCUIT FAILURE" REMOVED AND REPLACED APU IGV REF A
- [SDR ASAA2023101345631](https://openairdocs.org/sdr/ASAA2023101345631.md): Sensor · faulty · Oct 13, 2023 · N931AK · Boeing 7379 · APU Bleed Air System
  > APU HAS MILD SURGING DURING NORMAL OPERATION. GROUNDED - YES. R+R DELTA PRESSURE SENSOR REF AMM 49-52-33-000-801/400-801 AND TOTAL PRESSURE SENSOR REF AMM 49-52-32-000-801/400-801. APU FUNCTIONS NORMALLY. NDN.
- [SDR ASAA2023092445303](https://openairdocs.org/sdr/ASAA2023092445303.md): Unknown · unknown · Sep 24, 2023 · N931AK · Boeing 7379 · APU Bleed Air System
  > APU BLEED DUAL PRESSURE FLUCTUATES BETWEEN 0 AND 40PACK SELECTION LEFT RIGHT OR BOTH MAKE NO DIFFERENCE. GROUNDED - YES. (RESOLVED ON W/O: 1971307 TASKCARD: N/R-00001) ACCOMPLISHED IFIM TASK 749-52-00-810-811. AND FOUND SOME DEBRIS ON TOTAL PRESSOR SENSOR IN
- [SDR ASAA2023092445262](https://openairdocs.org/sdr/ASAA2023092445262.md): Unknown · unknown · Sep 24, 2023 · N931AK · Boeing 7379 · APU Bleed Air System
  > APU HAD FLUCTUATING BLEED AIR PRESSURE DROPPED TO 0 TWICE STABILIZED AFTER 3 MINUTES. GROUNDED - YES. APU DUCT PRESSURE WITHIN LIMITS AND STABLE REF B737-9 AMM 36-00-00. OK FOR SERVICE.
- [SDR ASAA2023092345254](https://openairdocs.org/sdr/ASAA2023092345254.md): Unknown · unknown · Sep 23, 2023 · N931AK · Boeing 7379 · Airborne Auxiliary Power Unit (APU) System
  > APU FAULT ON 2 START ATTEMPTS. GROUNDED - YES. INTEROGATED SYSTEM FOUND MX MESSAGES 49.4142 & WHEN START ATTEMPTED NEW MX MSG 49.41254. Y 30507ACCOMPLISHED IFIM TASK 49-40-00-810-805 BOTH MX MESSAGES NOT ACTIVE AND APU STARTED SUCCESSFULLY. REF LP 60911282 FOR
- [SDR ASAA2023091745187](https://openairdocs.org/sdr/ASAA2023091745187.md): Unknown · unknown · Sep 17, 2023 · N931AK · Boeing 7379 · HF Communications System
  > UNABLE TO TRANSMIT ON HF 1, HF 2 WORKED NORMALLY. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023091145057](https://openairdocs.org/sdr/ASAA2023091145057.md): Pump · leaking · Sep 11, 2023 · N931AK · Boeing 7379 · Hydraulic Pump (Electric/Engine), Main
  > #2 ENGINE HYD PUMP LEAKING AT CASE SPLIT. GROUNDED - YES. REPLACED #2 ENGINE HYD PUMP REF AMM 29-11-11, OPS CK GOOD. LEAK CHECK GOOD. HYD FLUSH NOT REQUIRED.
- [SDR ASAA2023090745027](https://openairdocs.org/sdr/ASAA2023090745027.md): Electronic Unit · faulty · Sep 7, 2023 · N931AK · Boeing 7379 · Communications System
  > HF#1 RECEIVE NO TRANSMIT. GROUNDED - YES. REPLACED REU REF AMM 23-51-01-000/400-801 (REF LP 60911257 FOR P/N TRANSACTION) VERIFIED OPS CK OF HF #1 RECEIVE/TRANSMIT PASS REF AMM 23-11-00-710-801. THIS CLEARS MEL 23-11-01B PLACARDS REMOVED SEAMC ANDY NOTIFIED
- [SDR ASAA2023090144914](https://openairdocs.org/sdr/ASAA2023090144914.md): Modulating Valve · faulty · Sep 1, 2023 · N931AK · Boeing 7379 · Engine Bleed Air System
  > WHILE ACCOMPLISHING T/C 31-005-00. FOUND SMT FAULT "BLEED FAMV RVDT L" ON ENG 1. GROUNDED - YES. REMOVED & REPLACED FAN AIR MODULATING VALVE REF AMM 36-12-03-000-801 & 36-12-03-400-801. OPS CHECK GOOD. SEAMC SCOTT NOTIFIED THIS CLEARS PLT DEFERRAL.
- [SDR ASAA2023090144902](https://openairdocs.org/sdr/ASAA2023090144902.md): Unknown · unknown · Sep 1, 2023 · N931AK · Boeing 7379 · Fuel Controlling System
  > MAINT LIGHT ON AFT OVERHEAD PANEL IS ON. GROUNDED - YES. OMF SHOWS MAINTENANCE MESSAGE 73-42701. ACCOMPLISHED IFIM G73-21-00-810-847. EEC CHANNEL-B POWER NOT AVAILABLE. MAINTENANCE LIGHT CLEARS AND OPS TEST NORMAL REF. AMM TASK G73-21-00-800-801-600.
- [SDR ASAA2023081544603](https://openairdocs.org/sdr/ASAA2023081544603.md): Filter · clogged · Aug 15, 2023 · N931AK · Boeing 7379 · Cabin Temperature Control System
  > 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
- [SDR ASAA2023081444606](https://openairdocs.org/sdr/ASAA2023081444606.md): Unknown · unknown · Aug 14, 2023 · N931AK · Boeing 7379 · HF Communications System
  > 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.
- [SDR ASAA2023081444605](https://openairdocs.org/sdr/ASAA2023081444605.md): Transceiver · faulty · Aug 14, 2023 · N931AK · Boeing 7379 · HF Communications System
  > 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 F
- [SDR ASAA2023080844498](https://openairdocs.org/sdr/ASAA2023080844498.md): Unknown · unknown · Aug 8, 2023 · N931AK · Boeing 7379 · HF Communications System
  > 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
- [SDR ASAA2023080344440](https://openairdocs.org/sdr/ASAA2023080344440.md): Unknown · unknown · Aug 3, 2023 · N931AK · Boeing 7379 · Weather Radar System
  > RADAR DOES NOT DISPLAY WX IN AUTO OR MANUAL MODE. GROUNDED - YES. WEATHER RADAR OPERATIONAL TEST PASSES, SYSTEM TEST FAILS - NO WEATHER OR GROUND RETURN. REFERENCE W/D 34-41-11-2, SHEET 1 - CONNECTORS D16712, D39977, AND D1409 REMOVED, INSPECTED AND RE-SEATED.
- [SDR ASAA2023080144377](https://openairdocs.org/sdr/ASAA2023080144377.md): Unknown · unknown · Aug 1, 2023 · N931AK · Boeing 7379 · Pneumatic System
  > WHILE PERFORMING T/C 31-005-00 AND T/C 05-020-01 FOUND LATCHED MESSAGE BLEED FAMV RVDT L ON ENG. 1. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023071444025](https://openairdocs.org/sdr/ASAA2023071444025.md): Unknown · unknown · Jul 14, 2023 · N931AK · Boeing 7379 · Cabin Pressure Control System
  > FLIGHT ATTENDANT REPORTS R2 DOOR MAKING NOISE AT CRUISE FL330 PSID 7.8 DOOR HANDLE INDICATES CLOSED PROPERLY. NO DOOR OPEN LIGHTS. PRESSURIZATION NORMAL. DOOR NOISE MAY BE COMING FROM LOWER RIGHT AREA OF DOOR. DOOR NOISE DOES NOT PREVENT COMMUNICATION. GROUNDE
- [SDR ASAA2023071344031](https://openairdocs.org/sdr/ASAA2023071344031.md): Unknown · unknown · Jul 13, 2023 · N931AK · Boeing 7379 · HF Communications System
  > HF #2 FAILED ENROUTE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023070843925](https://openairdocs.org/sdr/ASAA2023070843925.md): Transceiver · faulty · Jul 8, 2023 · N931AK · Boeing 7379 · Communications System
  > HF #2 C/B POPPED. GROUNDED - YES. REMOVED AND REPLACED #2 HF TRANSCEIVER REF B737-9 AMM 23-11-21. OPERATIONAL TEST PASS.
- [SDR ASAA2023070643913](https://openairdocs.org/sdr/ASAA2023070643913.md): Unknown · unknown · Jul 6, 2023 · N931AK · Boeing 7379 · Engine Oil System (Airframe Furnished)
  > TECH SERVICES FOLLOW UP ON URGENT CNR 20230706003 FOR #1 ENG (60A314) CUMULATIVE ODMS CHIP COUNT INCREASE - LOW THRESHOLD - URGENT. GROUNDED - YES. PERFORMED ODMS SENSOR INSPECTION REF AMM 79-00-00- TSR STEP 1. DEBRIS FOUND, PICTURES TAKEN AND DEBRIS COLLECTE
- [SDR ASAA2023062943805](https://openairdocs.org/sdr/ASAA2023062943805.md): Unknown · unknown · Jun 29, 2023 · N931AK · Boeing 7379 · APU Start/Ignition System
  > TWO APU START ATTEMPTS RESULTED IN APU FAULT LIGHT ILLUMINATION. GROUNDED - YES. PER B737-9 FIM TASK 49-40-00-810-818 VERIFIED NO VISUAL DAMAGES TO STARTER AND CANNON PLUG ATTACHING. AFTER FURTHER INVESTIGATION, DELTA P POPPED ON LUBE MODULE FILTER. REMOVED AN
- [SDR ASAA2023062843783](https://openairdocs.org/sdr/ASAA2023062843783.md): Unknown · unknown · Jun 28, 2023 · N931AK · Boeing 7379 · Fuel Controlling System
  > WHILE PERFORMING MTC 31-005-00 FOUND SMT MESSAGE ENG 1 EEC C2 UNDER LATCHED MESSAGE ERASE. GROUNDED - YES. C/W IFIM TASK G73-10-00-810-803. LATCHED MESSAGE ENG 1 EEC C2 ERASED AND DID NOT REAPPEAR.
- [SDR ASAA2023062643684](https://openairdocs.org/sdr/ASAA2023062643684.md): Modulating Valve · out of position · Jun 26, 2023 · N931AK · Boeing 7379 · Pneumatic Distribution System
  > TECH SERVICES REQUEST FOR FOLLOW-UP TO MTX LIGHT & FAULT(#1 LEFT FAMV FAULT 36-12020 #1(LH) FAMV IS NOT IN COMMANDED POSITION)----(#PRI1)----ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. REMOVED AND REPLACED THE #1 L/H FAMV. ALL OPS CHECKS PASSED. REF AMM 36-1
- [SDR ASAA2023052843379](https://openairdocs.org/sdr/ASAA2023052843379.md): Unknown · unknown · May 28, 2023 · N931AK · Boeing 7379 · Flight Management Computing Hardware System
  > IN CRUISE FL350 HAD DUAL FMC FAILURE. HAD AP P/RST AND FMC P/RST LIGHTS FLASHING ON GLARE SHIELD. WHILE GETTING QRH OUT, BOTH FMC'S RESET AND RETURNED TO NORMAL OPERATION. CPDLC ALSO LOGGED OFF. NORMAL OPS FOR THE REMAINDER OF THE FLIGHT. GROUNDED - YES. PERFO
- [SDR ASAA2023050343099](https://openairdocs.org/sdr/ASAA2023050343099.md): Unknown · unknown · May 3, 2023 · N931AK · Boeing 7379 · Engine Controls
  > OVERHEAD AND MAINT LIGHT ILLUMINATED FOR A SHORT WHILE AFTER LANDING AND THEN WENT OUT. GROUNDED - YES. A/C LOGGED FAULT 32-62101 LEFT TRA SWITCH OPEN DURING LANDING. PERFORMED B737-9 IFIM 32-09-00-810-839, FAULT IS NOT ACTIVE. MAINT LT EXTINGUISHED.
- [SDR ASAA2023032742604](https://openairdocs.org/sdr/ASAA2023032742604.md): Unknown · unknown · Mar 27, 2023 · N931AK · Boeing 7379 · Navigation System
  > FMC DISAGREE MSG. GROUNDED - YES. PER B737-9 IFIM 34-61-00-810-918 RESETED THE FAULTS. PERFORMED FMC OPS CHECK NORMAL REF B737-9 AMM 34-61-00-710-801.
- [SDR ASAA2023031242318](https://openairdocs.org/sdr/ASAA2023031242318.md): Unknown · unknown · Mar 12, 2023 · N931AK · Boeing 7379 · Fuel Indicating System
  > SUSPECTED FUEL LEAK LEFT TANK WAS DRAINING ALARMINGLY FAST. GROUNDED - YES. AIR TURNBACK -- CHECKED ALL THE BOOST PUMPS & ENGINES, NO LEAKS NOTED. ALSO RUN BOTH ENGINES NO ABNORMAL FUEL BURN NOTED. NO HISTORY OF FUEL LEAK.
- [SDR ASAA2023030942300](https://openairdocs.org/sdr/ASAA2023030942300.md): Motor · faulty · Mar 9, 2023 · N931AK · Boeing 7379 · Aircraft Fuel System
  > LEFT AFT FUEL PUMP "LOW PRESSURE" ILLUMINATED.(INFO: W/ 5175 LBS REMAINING IN TANK). GROUNDED - YES. REMOVED AND REPLACED LEFT AFT FUEL PUMP IAW B737-9 AMM 28-22-41-000-801 AND 28-22-41-400-801.
- [SDR ASAA2023030142353](https://openairdocs.org/sdr/ASAA2023030142353.md): Sensor · out of range · Mar 1, 2023 · N931AK · Boeing 7379 · Power Indicating System
  > DURING ASA TC 05-020-01 FOUND REPEAT ENG 2 EEC C2 FAULT. 77-43073, N2 SENSOR OUT OF RANGE. GROUNDED - YES. REMOVED AND REPLACED ENG #2 N2 SPEED SENSOR PER B737-9 AMM 77-12-02.
- [SDR ASAA2023020541833](https://openairdocs.org/sdr/ASAA2023020541833.md): Not Reported · not reported · Feb 5, 2023 · N931AK · Boeing 7379 · APU Oil System
  > APU OIL FILTER INDICATOR EXTENDED. GROUNDED - YES. REPLACED OIL FILTER INSPECTED MAG PLUG NO DEFECTS FOUND. RESET OIL FILTER INDICATOR. PERFORMED LEAK CHECK, NO LEAKS FOUND IN REF TO B737-9 AMM 49-91-13. ETOPS ENG OILS SERVICED IN REF TO AMM 12-13-31 C/N 93181
- [SDR ASAA2023020441823](https://openairdocs.org/sdr/ASAA2023020441823.md): Not Reported · not reported · Feb 4, 2023 · N931AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > ON TAXI IN L2 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. NO HISTORY- PERFORMED B737-9 IFIM 30-41-00-810-841L2 WINDOW HEAT OPS AND BITES NORMAL REF B737-9 AMM 30-41-00 + 30-41-11.
- [SDR ASAA2023020441822](https://openairdocs.org/sdr/ASAA2023020441822.md): Not Reported · not reported · Feb 4, 2023 · N931AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > ON TAXI IN L1 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. NO HISTORY-PERFORMED B737-9 IFIM 30-41-00-810-841L1 WINDOW HEAT OPS AND BITES NORMAL. REF MM 30-41-00 + 30-41-11.
- [SDR ASAA2023020441821](https://openairdocs.org/sdr/ASAA2023020441821.md): Not Reported · not reported · Feb 4, 2023 · N931AK · Boeing 7379 · Windshield/Door Rain/Ice Removal
  > ON TAXI IN R1 WINDOW OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. NO HISTORY-PERFORMED B737-9 IFIM 30-41-00-810-841R1 WINDOW HEAT OPS AND BITES NORMAL. REF B737-9 AMM 30-41-00 + 30-41-11.
- [SDR ASAA2022112840964](https://openairdocs.org/sdr/ASAA2022112840964.md): Fmc · faulted · Nov 28, 2022 · N931AK · Boeing 7379 · Flight Management Computing Hardware System
  > FMC DISAGREE BOTH SIDES. GROUNDED - YES. TROUBLESHOT PER B737-9 IFIM 34-61-00. OBSERVED FAULT CLEARED, NO FURTHER ACTION REQUIRED.
- [SDR ASAA2022110740695](https://openairdocs.org/sdr/ASAA2022110740695.md): Anti-Ice Valve · faulted · Nov 7, 2022 · N931AK · Boeing 7379 · Airfoil Anti/De-ice System
  > LEFT VALVE WING ANTI ICE LIGHT REMAINED ILLUMINATED WITH WAI SWITCH IN ON POSITION. GROUNDED - YES. R & R LT WING THERMAL ANTI-ICE VALVE ASSY REF B737-9 AMM 30-11-11. PERFORMED OPS TEST OF WING THERMAL ANTI-ICE VALVE REFAMM 30-11-11. OPS NORMAL NO LEAKS NOTED.
- [SDR ASAA2022100440161](https://openairdocs.org/sdr/ASAA2022100440161.md): Anti-Ice Valve · faulty · Oct 4, 2022 · N931AK · Boeing 7379 · Air Intake Anti/De-Ice System
  > DURING ENGINE RUN TEST FOUND #1 ENGINE ANTI-ICE VALVE LIGHT WOULD STAY ILLUMINATED AMBER UNTIL 68% N2 POWER, STAYS ILLUMINATED AT IDLE. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE ANTI-ICE VALVE, REF B737-9 AMM 30-21-11-000-801 & 30-21-11-400-801, LEAK AND
- [SDR ASAA2022092640075](https://openairdocs.org/sdr/ASAA2022092640075.md): Fmc · failed · Sep 26, 2022 · N931AK · Boeing 7379 · Flight Management Computing Hardware System
  > LEFT FMC FAILED IN CRUISE FLIGHT AT FL340. FMC RETURNED TO NORMAL OPERATION AFTER 15-20 SECONDS. GROUNDED - YES. PERFORMED GOOD OPS CHECK OF FLIGHT MANAGEMENT COMPUTER SYSTEM REF B737-9 AMM 34-61-00-710-801.
- [SDR ASAA2022082239593](https://openairdocs.org/sdr/ASAA2022082239593.md): Unknown · unknown · Aug 22, 2022 · N931AK · Boeing 737 · Airfoil Anti/De-ice System
  > AFTER SELECTION OF WING A-ICE TO "ON" L VALVE LIGHT ILLUMINATED WITH ASSOCIATED MASTER CAUTION. GROUNDED - YES. REF ASA FTD 30-22001 AND ASA FTD 30-18001. THIS FAULT IS A KNOWN ANOMALY ESPECIALLY ON L/H WTAI VALVE DUE TO THE VULNERABILITY OF THE SENSE LINE FRE
- [SDR ASAA2022080839433](https://openairdocs.org/sdr/ASAA2022080839433.md): Modulating Valve · inoperative · Aug 8, 2022 · N931AK · Boeing 7379 · Pneumatic Distribution System
  > AMBER OVERHEAD MAINT LIGHT ILLUMINATED AFTER LANDING. GROUNDED - YES. REMOVED AND REPLACED #1 ENG FAMV REF B737-9 AMM 36-12-03.
- [SDR ASAA2022071839125](https://openairdocs.org/sdr/ASAA2022071839125.md): Circuit Breaker · popped · Jul 18, 2022 · N931AK · Boeing 7379 · Pitot/Static Anti-Ice System
  > F/O PITOT CAUTION LIGHT ILLUMINATED AT FL330. GROUNDED - YES. UPON INSPECTION FOUND C/B D5, F/O PITOT, TRIPPED. RESET C/B REFERENCE B737-9 AMM 20-60-01-860-801 C/B REMAINED SET. PERFORMED TEST OF PROBE HEATER SYSTEM PER AMM 30-31-00-730-801. ALL PROBES TEST GO
- [SDR ASAA2022062738832](https://openairdocs.org/sdr/ASAA2022062738832.md): Radar · false indication · Jun 27, 2022 · N931AK · Boeing 7379 · Weather Radar System
  > WXR FAIL MSG IN FLIGHT. GROUNDED - YES. NO HISTORY OF FAULT LAST 30 DAYS. PERFORMED WXR OPERATIONAL TEST AND NO FAULTS FOUND. BITE CK SHOWS NO FAULTS WXR SYSTEM OK FOR SERVICE.
- [SDR ASAA2022061838694](https://openairdocs.org/sdr/ASAA2022061838694.md): Warning Light · illuminated · Jun 18, 2022 · N931AK · Boeing 7379 · Central Warning
  > VTK ON F.O. SIDE FOR 30 SECONDS THEN BACK TO NORMAL. GROUNDED - YES. FOUND MAINTENACE MESSAGE: 34-69-002 NO INPUT TO FMC 2, PERFORMED B737-9 IFIM 34-61-00. MAINTENANCE MESSAGE NOT ACTIVE. INTERMITTENT FAULT NO MAINTENANCE REQUIRED.

Next page: https://openairdocs.org/aircraft/N931AK/reports.md?page=2

## 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 = 'N931AK' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N931AK/reports

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