# N933AK: 2022 Boeing 737-9

- Status: Valid registration
- Airframe: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (registry code 138469A, 48 seats)
- Engine: [CFM International LEAP-1B28 series](https://openairdocs.org/engine/cfm-international-leap-1b28-series) (registry code 13120)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company), [TCDS E00088EN](https://openairdocs.org/tcds/E00088EN) (CFM International S.A.) (OpenAirDocs)
- Serial number: 44098
- Year built: 2022
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: March 11, 2022
- Certificate issued: March 23, 2022
- Expires: March 31, 2029
- Mode S code: ACF0D8
- Registered owner: [Alaska Airlines Inc](https://openairdocs.org/faa-owner/ALASKA%20AIRLINES%20INC)
- Location: [Seatac, WA](https://openairdocs.org/faa-place/WA/Seatac)
- Owner type: Corporation
- Owner's area on the map: 47.4466° N, 122.2721° W: Placed by OpenAirDocs at the center of ZIP code 98188, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=933AK
- Page: https://openairdocs.org/aircraft/N933AK

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. The registry lists only the engine series, so ADs for every CFM International LEAP-1B28 model are included.

## ADs that may apply (OpenAirDocs): 48 in force

### Matched by airframe (Boeing 737-9)

- [AD 2026-18-07](https://openairdocs.org/ad/2026-18-07): Fuselage · Boeing 737-8, 737-9 and 737-8200. Effective Oct 22, 2026
- [AD 2026-15-11](https://openairdocs.org/ad/2026-15-11): Fuselage · Boeing 737-8, 737-9 and 737-8200. Effective Sep 10, 2026
- [AD 2026-14-11](https://openairdocs.org/ad/2026-14-11): Air Conditioning · Boeing 737-8, 737-9 and 737-8200. Effective Jul 13, 2026
- [AD 2026-13-17](https://openairdocs.org/ad/2026-13-17): Navigation · Boeing 737-8, 737-9 and 737-8200. Effective Jul 1, 2026
- [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026
- [AD 2025-25-04](https://openairdocs.org/ad/2025-25-04): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 6 more. Effective Jan 16, 2026
- [AD 2025-02-07](https://openairdocs.org/ad/2025-02-07): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Mar 17, 2025
- [AD 2024-23-11](https://openairdocs.org/ad/2024-23-11): Flight controls · Boeing 737-8, 737-9 and 737-8200. Effective Jan 6, 2025
- [AD 2024-19-06](https://openairdocs.org/ad/2024-19-06): Ice/Rain Protection System · Boeing 737-8 and 737-9. Effective Nov 26, 2024
- [AD 2024-13-02](https://openairdocs.org/ad/2024-13-02): Oxygen · Boeing 737-8, 737-9, 737-8200 and 3 more. Effective Jul 25, 2024
- [AD 2024-06-03](https://openairdocs.org/ad/2024-06-03): Electrical Power · Boeing 737-8 and 737-9. Effective May 22, 2024
- [AD 2024-03-04](https://openairdocs.org/ad/2024-03-04): Flight controls · Boeing 737-8, 737-9 and 737-8200. Effective Feb 12, 2024
- [AD 2024-02-51](https://openairdocs.org/ad/2024-02-51): Doors · Boeing 737-9. Effective Jan 18, 2024
- [AD 2023-15-05](https://openairdocs.org/ad/2023-15-05): Ice and Rain Protection, Powerplant · Boeing 737-8, 737-9 and 737-8200. Effective Aug 25, 2023
- [AD 2023-12-11](https://openairdocs.org/ad/2023-12-11): Navigation · Boeing 737-8, 737-9 and 737-8200. Effective Jun 21, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-05-06](https://openairdocs.org/ad/2023-05-06): Fuel · Boeing 737-8, 737-9 and 737-8200. Effective May 10, 2023
- [AD 2023-04-17](https://openairdocs.org/ad/2023-04-17): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective May 1, 2023
- [AD 2023-06-10](https://openairdocs.org/ad/2023-06-10): Ice and Rain Protection, Powerplant · Boeing 737-8, 737-8200 and 737-9. Effective Apr 11, 2023
- [AD 2022-24-09](https://openairdocs.org/ad/2022-24-09): Air conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 12 more. Effective Jan 26, 2023
- [AD 2022-06-06](https://openairdocs.org/ad/2022-06-06): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Jun 16, 2022
- [AD 2021-19-19](https://openairdocs.org/ad/2021-19-19): Wings · Boeing 737-9. Effective Dec 8, 2021
- [AD 2021-13-18](https://openairdocs.org/ad/2021-13-18): Powerplant · Boeing 737-8, 737-8200 and 737-9. Effective Sep 3, 2021
- [AD 2021-16-15](https://openairdocs.org/ad/2021-16-15): Air conditioning · Boeing 737-8, 737-800 Series, 737-8200 and 2 more. Effective Aug 9, 2021
- [AD 2021-12-13](https://openairdocs.org/ad/2021-12-13): Fuel · Boeing 737-8 and 737-9. Effective Jul 29, 2021
- [AD 2021-10-07](https://openairdocs.org/ad/2021-10-07): Autoflight, Flight controls · Boeing 737-8 and 737-9. Effective Jul 8, 2021
- [AD 2021-08-04](https://openairdocs.org/ad/2021-08-04): Oxygen · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 23 more. Effective May 26, 2021
- [AD 2021-09-08](https://openairdocs.org/ad/2021-09-08): Electrical power system · Boeing 737-8 and 737-9. Effective Apr 30, 2021
- [AD 2021-01-04](https://openairdocs.org/ad/2021-01-04): Doors · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Mar 29, 2021
- [AD 2020-24-02](https://openairdocs.org/ad/2020-24-02): Auto flight, Flight controls, and Indicating/recording systems · Boeing 737-8 and 737-9. Effective Nov 20, 2020
- [AD 2020-21-02](https://openairdocs.org/ad/2020-21-02): Fire protection · Airbus Canada Limited Partnership BD-500-1A10, BD-500-1A11, A330-201 and 45 more. Effective Nov 19, 2020
- [AD 2020-11-12](https://openairdocs.org/ad/2020-11-12): Nacelles/pylons · Boeing 737-8 and 737-9. Effective Jul 30, 2020
- [AD 2020-14-09](https://openairdocs.org/ad/2020-14-09): Fuel storage · Boeing 737-8 and 737-9. Effective Jul 15, 2020
- [AD 2020-03-10](https://openairdocs.org/ad/2020-03-10): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Mar 27, 2020
- [AD 2019-18-03](https://openairdocs.org/ad/2019-18-03): Exhaust · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Oct 3, 2019
- [AD 2019-14-12](https://openairdocs.org/ad/2019-14-12): Flight Controls · Boeing 737-8 and 737-9. Effective Aug 30, 2019
- [AD 2019-14-02](https://openairdocs.org/ad/2019-14-02): Hydraulic power · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 11 more. Effective Aug 27, 2019
- [AD 2018-23-12](https://openairdocs.org/ad/2018-23-12): Equipment/furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 180 more. Effective Dec 28, 2018
- [AD 2018-20-13](https://openairdocs.org/ad/2018-20-13): Fuel · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 13 more. Effective Nov 15, 2018

### Matched by engine (CFM International LEAP-1B28 series)

- [AD 2025-14-08](https://openairdocs.org/ad/2025-14-08): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Aug 25, 2025
- [AD 2025-04-12](https://openairdocs.org/ad/2025-04-12): Turbine Section · CFM International LEAP-1A23, LEAP-1A24, LEAP-1A24E1 and 24 more. Effective Apr 8, 2025
- [AD 2024-25-02](https://openairdocs.org/ad/2024-25-02): Turbine Engine Compressor Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Feb 12, 2025
- [AD 2023-07-11](https://openairdocs.org/ad/2023-07-11): Turbine Engine Compressor Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jun 13, 2023
- [AD 2022-17-02](https://openairdocs.org/ad/2022-17-02): Turbine Engine Accessory Drive · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Oct 20, 2022
- [AD 2022-11-02](https://openairdocs.org/ad/2022-11-02): Turbine Engine Compressor Section, Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jul 8, 2022
- [AD 2021-10-06](https://openairdocs.org/ad/2021-10-06): Engine Controls · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective May 10, 2021
- [AD 2020-06-01](https://openairdocs.org/ad/2020-06-01): Turbine/Turboprop · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Apr 16, 2020
- [AD 2018-20-01](https://openairdocs.org/ad/2018-20-01): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Dec 17, 2018

### Historical (superseded or no longer in force)

- [AD 2026-13-05](https://openairdocs.org/ad/2026-13-05) (historical): Air conditioning · Boeing 737-8, 737-9 and 737-8200. Effective Jul 16, 2026
- [AD 2026-04-05](https://openairdocs.org/ad/2026-04-05) (historical): Electrical Power · Boeing 737-8, 737-9 and 737-8200. Effective Feb 24, 2026
- [AD 2023-09-04](https://openairdocs.org/ad/2023-09-04) (historical): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 5 more. Effective Jun 29, 2023
- [AD 2022-03-20](https://openairdocs.org/ad/2022-03-20) (historical): Navigation · Boeing 737-8, 737-9 and 737-8200. Effective Jan 31, 2022
- [AD 2021-14-20](https://openairdocs.org/ad/2021-14-20) (historical): Cabin Altitude Pressure Switches · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 12 more. Effective Jul 20, 2021
- [AD 2020-03-20](https://openairdocs.org/ad/2020-03-20) (historical): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Feb 18, 2020
- [AD 2018-23-51](https://openairdocs.org/ad/2018-23-51) (historical): Flight controls · Boeing 737-8 and 737-9. Effective Dec 21, 2018
- [AD 2023-23-12](https://openairdocs.org/ad/2023-23-12) (historical): Turbine Section · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jan 16, 2024
- [AD 2019-12-01](https://openairdocs.org/ad/2019-12-01) (historical): Turbine Engine Accessory Drive · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Jul 3, 2019
- [AD 2018-25-09](https://openairdocs.org/ad/2018-25-09) (historical): Engine Controls · CFM International LEAP-1B21, LEAP-1B23, LEAP-1B25 and 8 more. Effective Dec 26, 2018

## Information bulletins (advisory) (4 in force)

- [SAIB 2026-17](https://openairdocs.org/saib/2026-17): VNAV Approach Disconnect Following Missed Approach, Anomaly on Airplanes with FMC U14.0/14.1. Issued Oct 3, 2026
- [SAIB NM-20-02](https://openairdocs.org/saib/NM-20-02): Fire Protection. Issued Mar 11, 2020
- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019
- [SAIB NM-18-33](https://openairdocs.org/saib/NM-18-33): Engine Fuel and Control. Issued Dec 17, 2018

## NTSB investigations

None matched to N933AK.

## FAA accident and incident reports

None matched to N933AK.

## Service difficulty reports (60, newest 50)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR ASAA2026050866009](https://openairdocs.org/sdr/ASAA2026050866009), May 8, 2026: LINK. DAMAGED. L1 DOOR DIFFICULT TO OPEN BINDING AFTER ABOUT 6 INCHES OF MOVEMENT POPPING SOUND HEARD IN AREA OF GUST LOCK THEN DOOR FULLY OPENED. GROUNDED - YES. ON L1 DOOR F
- [SDR ASAA2025110262115](https://openairdocs.org/sdr/ASAA2025110262115), Nov 2, 2025: SEAT TRACK. DAMAGED. PILOT SEAT AFT INBOARD SEAT TRACK HAS MULTIPLE HOLES ELONGATED. SRXR430X. GROUNDED - YES. REMOVED AND REPLACED AFT INBOARD SEAT RRACK AT PILOT SEAT IAW IPECO CM
- [SDR ASAA2025110262114](https://openairdocs.org/sdr/ASAA2025110262114), Nov 2, 2025: SEAT TRACK. DAMAGED. COPILOT SEAT AFT INBOARD SEAT TRACK HAS MULTIPLE HOLES ELONGATED. SRXR430X. GROUNDED - YES. REMOVED AND REPLACED AFT INBOARD SEAT TRACK ON COPILOT SEAT IAW IPEC
- [SDR ASAA2025012955617](https://openairdocs.org/sdr/ASAA2025012955617), Jan 29, 2025: COVER. DETACHED. CLEANERS DISCOVERED EXIT LT COVER ON FLOOR. GROUNDED - YES. REPLACED EXIT LIGHT COVER OPS NRML CENTER EXIT ROW LEFT FWD SIDE.
- [SDR ASAA2024090652371](https://openairdocs.org/sdr/ASAA2024090652371), Sep 6, 2024: COVER. BINDING. L1 DOOR LOWER HINGE COVER BINDING UP DOOR ON OPENING. GROUNDED - YES. PERFORMED GVI OF L1 DOOR, FRAME, SURROUNDING AREA. OPS CK'D DOOR FROM INSIDE AND OUT MULTI
- [SDR ASAA2023110346025](https://openairdocs.org/sdr/ASAA2023110346025), Nov 3, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMP T/C 31-005-00 FOUND SMT FAULT BLEED FAMV RVDTR. GROUNDED - YES. PERFORMED IFIM TASK 36-12-00-810-804. TEST PASSED SMT NO LONGER ACTIVE .
- [SDR ASAA2023102645891](https://openairdocs.org/sdr/ASAA2023102645891), Oct 26, 2023: MODULATING VALVE. FAULTY. WHILE ACCOMPLISHING TASK 31-005-00 FOUND MAX DISPLAY - SMT MESSAGE " BLEED FAMV RVDT R". GROUNDED - YES. (RESOLVED ON W/O: 1974732 TASKCARD: N/R-00002 ) REMOVED
- [SDR ASAA2023102245786](https://openairdocs.org/sdr/ASAA2023102245786), Oct 22, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING TASKCARD # 31-005-00 FOUND FAULT CODE BLEED FAMV RUDT R. MAINTENANCE MESSAGE 36-12031. GROUNDED - YES. THROUBLESHOT PER B737-9 IFIM 36-12-00-81
- [SDR ASAA2023101245667](https://openairdocs.org/sdr/ASAA2023101245667), Oct 12, 2023: UNKNOWN. UNKNOWN. LEFT FORWARD WINDOW OVERHEAT. GROUNDED - YES. WHCU SHOWS #2 SENSOR FAULT, PRELIMINARY RESISTANCE CKS SHOWED NORMAL FOR BOTH SENSOR HOWEVER AFTER HEAT APPLIED TO
- [SDR ASAA2023101045538](https://openairdocs.org/sdr/ASAA2023101045538), Oct 10, 2023: UNKNOWN. UNKNOWN. LEFT FORWARD WINDOW HEAT GOES TO OVERHEAT WHEN SELECTED TO ON. GROUNDED - YES. PERFORMED WINDOW HEAT CONTROL UNIT OPS CHECK AND BITE CHECK PER AMM 30-41-11, OPS
- [SDR ASAA2023100745505](https://openairdocs.org/sdr/ASAA2023100745505), Oct 7, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING TASK CARD # 31-005-00 FOUND SCHEDULED MTXTASK MESSAGE "BLEED FAMV RVDT R.". GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023100745507](https://openairdocs.org/sdr/ASAA2023100745507), Oct 7, 2023: UNKNOWN. UNKNOWN. LEFT FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED FOUND ON RECALL CK PRIOR TO T/O. GROUNDED - YES. FOLLOWED QRH LIGHT EXTINGUISHED AND REMAIND OFF.
- [SDR ASAA2023092645345](https://openairdocs.org/sdr/ASAA2023092645345), Sep 26, 2023: UNKNOWN. UNKNOWN. LEFT FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATED. GROUNDED - YES. QRH PROCEDURE PERFORMED. OVERHEAT LIGHT EXTINGUISHED.
- [SDR ASAA2023091245123](https://openairdocs.org/sdr/ASAA2023091245123), Sep 12, 2023: UNKNOWN. UNKNOWN. #1 ENGINE START SWITCH KNOB IS LOOSE. GROUNDED - YES. TIGHTENED #1 ENGINE START SWITCH KNOB SET SCREWS. REF. MM 80-11-03.
- [SDR ASAA2023072944308](https://openairdocs.org/sdr/ASAA2023072944308), Jul 29, 2023: UNKNOWN. UNKNOWN. USING RSV FUEL MESSAGE. GROUNDED - YES. NO WIND SPD ON FLT PLAN. REBOOTED 1 & 2 FMC COMPUTERS. WIND SPD LOADED AND USING RSV FUEL MESSAGE CLEARED.
- [SDR ASAA2023072344200](https://openairdocs.org/sdr/ASAA2023072344200), Jul 23, 2023: UNKNOWN. UNKNOWN. DURING THE DESCENT CHECK LIST- ON "RECALL" MASTER CAUTION AND "SPEED TRIM LIGHT" ILLUMINATED, RAN QRH- BOTH LIGHTS EXTINGUISHED THEN MASTER CAUTION SYSTEM WAS R
- [SDR ASAA2023071644026](https://openairdocs.org/sdr/ASAA2023071644026), Jul 16, 2023: UNKNOWN. UNKNOWN. WHEN PERFORMING SCHEDULED MAINTENANCE TASK DISPLAY TASK CARD FOUND SMT MEGGASE BLEED FAMV RVDT R. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023070243874](https://openairdocs.org/sdr/ASAA2023070243874), Jul 2, 2023: UNKNOWN. UNKNOWN. MOMENTARY FMC RIGHT FAIL RECOVERED ON ITS OWN. GROUNDED - YES. CYCLED FMCS COMPUTER 1/2 CB REF B737-9 IFIM 34-61-00-810-918FAULT CLEARED. OPS CHK GOOD.
- [SDR ASAA2023062543675](https://openairdocs.org/sdr/ASAA2023062543675), Jun 25, 2023: UNKNOWN. UNKNOWN. DURING SCHEDULED MAINT TASK CARD 05-020-01, FOUND SMT MESSAGE "ENG 1 EEC C1". GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062543674](https://openairdocs.org/sdr/ASAA2023062543674), Jun 25, 2023: UNKNOWN. UNKNOWN. DURING SCHEDULED MAINT TASK CARD FOUND SMT MESSAGE "BLEED FAMV RVDT R". GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023061943649](https://openairdocs.org/sdr/ASAA2023061943649), Jun 19, 2023: UNKNOWN. UNKNOWN. AT 23:10 (APROX) AFT F/A SMELLED "DIRTY SOCK" SMELL AT ABOUT 1,500FT ON TAKEOFF. BLEEDS WERE IN NORMAL T/O POSITION (ENG 1+2 BLEED ON, AFT BLEED OFF L. PACK AUT
- [SDR ASAA2023061443647](https://openairdocs.org/sdr/ASAA2023061443647), Jun 14, 2023: MODULATING VALVE. OUT OF RANGE. REF T/C 31-005-00, SMT MESSAGE " BLEED FAMV RVDT R" SHOWS WITH CORRELATED MAINTENANCE MESSAGE 36-12031 "ENG 2 FAMV RVDT SIGNAL IS OUT OF RANGE". GROUNDED - YES.
- [SDR ASAA2023060243437](https://openairdocs.org/sdr/ASAA2023060243437), Jun 2, 2023: ACTUATOR. FAULTY. SPAR VALVE LIGHT ILLUMINATED DURING CLIMB. TURNED OFF AFTER 30 MINUTES. GROUNDED - YES. REMOVED AND REPLACED #2 ENG SPAR VALVE ACTUATOR REF B737-9 AMM 28-22-11.
- [SDR ASAA2023052243393](https://openairdocs.org/sdr/ASAA2023052243393), May 22, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING ASA T/C 05-020-01 FOUND SMT MSG ENG 2 EEC C1 SHORT TIME FAULT MSG. GROUNDED - YES. FOUND ENG 2 EEC C1 SMT MESSAGE AND ACCOMPLISHED B737-9 IFIM 
- [SDR ASAA2023050643220](https://openairdocs.org/sdr/ASAA2023050643220), May 6, 2023: MODULATING VALVE. FAULTY. DURING ACCOMPLISHMENT OF T/C 31-005-00 #2 ENG HAS FAULT MSG 36-12031 BLEED FAMV RVDT R. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 36-12-00-810-804. WIRING CHEC
- [SDR ASAA2023030342174](https://openairdocs.org/sdr/ASAA2023030342174), Mar 3, 2023: UNKNOWN. UNKNOWN. HFI AND HF2 COMMUNICATION UNINTELLIGABLE ON EVERY FREQUENCY IN OCEANIC AIRSPACE. COMMUNICATION ON THESE RADIOS WAS SUCCESSFUL DEPARTING HAWAII. NO DIFFICULTIES 
- [SDR ASAA2023020641883](https://openairdocs.org/sdr/ASAA2023020641883), Feb 6, 2023: IGNITER. UNKNOWN. EEC FAULT ENG. 2. GROUNDED - YES. FOUND DEGRADATION OF THE L/H IGNITER PLUG TIP. REPLACED IGNITER REF B737-9 AMM 74-21-02.
- [SDR ASAA2023012441643](https://openairdocs.org/sdr/ASAA2023012441643), Jan 24, 2023: BLEED VALVE. FAILED. DURING CLIMB UP TO FL340 #1 BLEED DUCT PRESSURE INDICATED 70-74 PSI #2 BLEED DUCT PRESSURE INDICATED 40-45 PSI. BOTH INDICATED 35 PSI AFTER POWER REDUCTION IN C
- [SDR ASAA2023012241614](https://openairdocs.org/sdr/ASAA2023012241614), Jan 22, 2023: SENSOR. ERRATIC. ASA TECH SERVICES REQUESTS #1 ENGINE T12 SENSOR REPLACEMENT DUE TO ERRATIC CHANNEL A READINGS. GROUNDED - YES. REMOVED #1 ENG T12 SENSOR IAW B737-9 AMM 73-21-06
- [SDR ASAA2023012511641](https://openairdocs.org/sdr/ASAA2023012511641), Jan 21, 2023: ANTI-ICE VALVE. FAULTED. REF DEFECT #60515379 #1 ENGINE COWL ANTI-ICE VALVE ON @ ROLLOUT. GROUNDED - YES. REMOVED & REPLACED #1 ENG ANTI ICE VLV PER B737-9 AMM 30-21-11-400-801.
- [SDR ASAA2023012141620](https://openairdocs.org/sdr/ASAA2023012141620), Jan 21, 2023: FADEC. FAULTED. ON TAKEOFF ROLL AT JUST PRIOR TO 80 KTS, THE MASTER CAUTION ILLUMINATED AND WE ABORTED THE TAKEOFF AT AROUND 100 KTS. THE #1 ENGINE ANTI-ICE COWL VALVE LIGHT WA
- [SDR ASAA2023012301593](https://openairdocs.org/sdr/ASAA2023012301593), Jan 20, 2023: FMC. FALSE INDICATION. "FMC DISAGREE" SHOWN ON BOTH MCDU SCRATCHPADS UPON ARRIVAL AT A/C. GROUNDED - YES. CYCLED FMC CIRCUIT BREAKERS PER B737-9 IFIM TASK 34-61-00-810-918. OBSERVED F
- [SDR ASAA2023010541443](https://openairdocs.org/sdr/ASAA2023010541443), Jan 5, 2023: WARNING LIGHT. FALSE ACTIVATION. CAPTAIN'S FWD WINDOW HEAT OVERHEAT ON CLIMBOUT FROM KONA. GROUNDED - YES. RAN ASA QRH. LIGHT WENT OUT. OPS NORMAL.
- [SDR ASAA2022112040901](https://openairdocs.org/sdr/ASAA2022112040901), Nov 20, 2022: FILTER. CLOGGED. REFERENCE ASA LOG PAGE 60411597 DURING TROUBLE SHOOTING FOUND APU OIL FILTER CLOGGING INDICATOR TRIPPED. GROUNDED - YES. IN ACCORDANCE WITH B737-9 AMM 49-91-13-
- [SDR ASAA2022110740667](https://openairdocs.org/sdr/ASAA2022110740667), Nov 7, 2022: ANTI-ICE VALVE. FAILED. WING ANTI-ICE "L VALVE" CAUTION LIGHT ILLUMINATED WHEN SELECTING WING ANTI-ICE ON. GROUNDED - YES. REMOVED AND REPLACED "L VALVE" ON #1 ENG ANTI ICE VALVE PER B
- [SDR ASAA2022102540471](https://openairdocs.org/sdr/ASAA2022102540471), Oct 25, 2022: WARNING LIGHT. FALSE INDICATION. SPEED TRIM FAIL LIGHT ILLUMINATES ON MASTER CAUTION RECALL, GOES OUT WITH MASTER CAUTION RESET. GROUNDED - YES. PERFORMED BITE TEST OF THE DFCS CHANNEL A - AND 
- [SDR ASAA2022071439096](https://openairdocs.org/sdr/ASAA2022071439096), Jul 14, 2022: CONVERTER. FAULTY. APU FAULT LIGHT ILLUMINATED ON START ATTEMPT. GROUNDED - YES. REMOVED & REPLACED APU STARTER CONVERTER REF B737-9 AMM 49-41-21.
- [SDR ASAA2022071339048](https://openairdocs.org/sdr/ASAA2022071339048), Jul 13, 2022: AUTOTHROTTLE SYS. DISENGAGED. AUTOTHROTTLE DISENGAGED ON THE GROUND BEFORE TAKEOFF WOULD NOT RE-ENGAGE. GROUNDED - YES. ACCOMPLISHED AUTOTHROTTLE SYSTEM OPERATIONAL TEST REF B737-9 AMM 22-31
- [SDR ASAA2022070438928](https://openairdocs.org/sdr/ASAA2022070438928), Jul 4, 2022: ACTUATOR. FAULTY. FOUND MAINT CAUTION LIGHT ILLUMINATED DURING PRE-FLIGHT. GROUNDED - YES. FOUND FAULT FOR LEFT EXHAUST ACTUATOR. REMOVED AND REPLACED LEFT RAM AIR EXHAUST ACTUAT
- [SDR ASAA2022070438926](https://openairdocs.org/sdr/ASAA2022070438926), Jul 4, 2022: CIRCUIT BREAKER. POPPED. WX RADAR FAIL ILLUMINATED. FOUND P-6-1-D13 CB POPPED. GROUNDED - YES. AIR TURNBACK - ACCOMPLISHED C/B RESET PROCEDURE REF B737-9 AMM 20-60-01 & SSM 34-41-11-102
- [SDR ASAA2022070438901](https://openairdocs.org/sdr/ASAA2022070438901), Jul 4, 2022: AUTOPILOT SYS. INTERMITTENT. SPEED TRIM FAIL ON DESCENT. GROUNDED - YES. FCC-B LOGGED MSG 22-11186.TRIM CMD RESPONSE MONITOR. COULD NOT DUPLICATE MALFUNCTION. ACCOMPLISHED SPEED TRIM GROUP 
- [SDR ASAA2022070338894](https://openairdocs.org/sdr/ASAA2022070338894), Jul 3, 2022: RAM AIR DOOR. FAULT MESSAGE. "MAINT" LIGHT ILLUMINATED ON LANDING ROLLOUT. GROUNDED - YES. CHECKED STATUS MESSAGE PAGE & NOTED PACK RAM AIR L. PRESENT LEG FAULTS NOTED MAINT MESSAGE 21-5501
- [SDR ASAA2022062538794](https://openairdocs.org/sdr/ASAA2022062538794), Jun 25, 2022: ACTUATOR. INOPERATIVE. AFTER LANDING OVERHEAD MAINT AMBER LIGHT ILLUMINATED. GROUNDED - YES. FOUND FAULT CODE 21-55010 VERIFIED LEFT PACK EXHAUST ACTUATOR HAS FAULT AND IS NOT WORKING
- [SDR ASAA2022062238758](https://openairdocs.org/sdr/ASAA2022062238758), Jun 22, 2022: PUMP. LEAKING. #2 ENGINE LEAKING FUEL AT THE DRAIN MAST. FUEL IS COMING FROM THE ENGINE FUEL PUMP. GROUNDED - YES. REMOVED AND REPLACED FUEL PUMP ON #2 ENGINE IAW B737-9 AMM 7
- [SDR ASAA2022061738697](https://openairdocs.org/sdr/ASAA2022061738697), Jun 17, 2022: FMC. FAULT MESSAGE. ON LANDING OVERHEAD "MAINT" LIGHT ILLUMINATED ALONG WITH ASSOCIATED MASTER CAUTION LIGHT (SEA MCT ADVISED VIA VHF RADIO AT APPROX 00:48Z) GROUNDED - YES. MSG 34
- [SDR ASAA2022061538671](https://openairdocs.org/sdr/ASAA2022061538671), Jun 15, 2022: ANTI-ICE VALVE. STUCK. WING ANTI-ICE R VALVE CAUTION LIGHT ILLUMINATED DURING DESCENT WHEN WING ANTI-ICE WAS SELECTED ON. EXTINGUISHED WHEN WING ANTI-ICE WAS TURNED OFF. GROUNDED - YE
- [SDR ASAA2022061338647](https://openairdocs.org/sdr/ASAA2022061338647), Jun 13, 2022: CIRCUIT BREAKER. POPPED. RIGHT FWD WINDOW HEAT OVERHEAT ANNUNCIATOR LIGHT ON AFTER TAXIING. GROUNDED - YES. PERFORMED OPS TEST OF WINDOW HEAT SYSTEM IAW B737-9 AMM 30-41-00-710-801 R1 W
- [SDR ASAA2022061138613](https://openairdocs.org/sdr/ASAA2022061138613), Jun 11, 2022: APU. FAILED. AC WILL NOT TAKE GROUND POWER. GROUNDED - YES. FLIGHT CREW FURTHER CLARIFIED THAT APU WOULD NOT START, NO GROUND SERVICE POWER (SYMPTOMS DESCRIBED IN B737-9 IFI
- [SDR ASAA2022060738590](https://openairdocs.org/sdr/ASAA2022060738590), Jun 7, 2022: AUTOPILOT SYS. WARNING LIGHT. SPEED TRIM FAIL LIGHT CAME ON W/RECALL AT TOP OF DESCENT. GROUNDED - YES. DFCS FLT FAULTS SHOW CHAN A MSG 22-11186 TRIM CMD RESPSE MON. & CHAN B MSG 22-11186 PL
- [SDR ASAA2022052438446](https://openairdocs.org/sdr/ASAA2022052438446), May 24, 2022: RECEIVER. FAILED. WXR FAIL INDICATED ON BOTH INBOARD DISPLAY UNTIS. GROUNDED - YES. REF B737-9 AMM 34-41-42 REMOVED AND REPLACED WXR RECEIVER, PROCESSOR. OPS CHECK GOOD A/C OK FO

All 60: https://openairdocs.org/aircraft/N933AK/reports.md

## STCs that may be installed (OpenAirDocs) (105, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing 737-9)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [STC ST04669CH](https://openairdocs.org/stc/ST04669CH): Installation of Honeywell Advanced Communications and Entertainment System (ACES). Honeywell Aerospace
- [STC ST09941AC](https://openairdocs.org/stc/ST09941AC): Installation of a Gables SATVOICE Annunciator Panel. L2 Aviation
- [STC ST02269NY](https://openairdocs.org/stc/ST02269NY): Installation of Self Illuminating Floor Path Marking System. Lufthansa Technik AG
- [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems
- [STC ST12443LA](https://openairdocs.org/stc/ST12443LA): Installation of Teledyne Controls Edge Computing Platform (ECP). Teledyne Controls, LLC
- [STC ST04474NY](https://openairdocs.org/stc/ST04474NY): Activation of Wireless Local Area Network (WLAN) system. Jet Aviation AG
- [STC ST04254NY](https://openairdocs.org/stc/ST04254NY): Installation of Viasat Satcom Software. ALOFT AeroArchitects
- [STC ST09927AC](https://openairdocs.org/stc/ST09927AC): Installation of a Gables Audio Management System. L2 Aviation
- [STC ST12005SE](https://openairdocs.org/stc/ST12005SE): Installation of Starlink Aviation System. Space Exploration Technologies Corp./Starlink Aviation
- [STC ST04040CH](https://openairdocs.org/stc/ST04040CH): Activation of Smart Runway and Smart Landing (SRSL) Runway Awareness Advisory System (RAAS) Functions for Honeywell Mark V and Mark V-A Enhanced Ground Proximity Warning Systems (EGPWS). Honeywell International Inc
- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC ST04384AT](https://openairdocs.org/stc/ST04384AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST00952LA](https://openairdocs.org/stc/ST00952LA): Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON LLC d/b/a MASS Systems
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST03405NY](https://openairdocs.org/stc/ST03405NY): Installation (with demod option) of an Connectivity Antenna. Delta Engineering Corporation
- [STC ST04758NY](https://openairdocs.org/stc/ST04758NY): Installation of single cockpit USB charger. Eirtech Aviation Services Inc
- [STC ST09844DS](https://openairdocs.org/stc/ST09844DS): This project installs a new Next-IS media server and installation provisions to interface with the Starlink IFC system. United Airlines
- [STC ST04052NY](https://openairdocs.org/stc/ST04052NY): ViaSat KA Cabin Distribution System Installation. ALOFT AeroArchitects
- [STC ST02908NY](https://openairdocs.org/stc/ST02908NY): Installation of a Panasonic Avionics Corporation Global Communications Suite (GCS) and/or In-Flight Entertainment (IFE). Delta Engineering Corporation
- [STC ST04051NY](https://openairdocs.org/stc/ST04051NY): ViaSat KA SATCOM Antenna System Installation. ALOFT AeroArchitects
- [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST12102IB](https://openairdocs.org/stc/ST12102IB): Installation of a Honeywell Aspire 400 SBB Satcom and/or an AMT-3800 high gain antenna. Jet Aviation AG
- [STC ST12059IB](https://openairdocs.org/stc/ST12059IB): Installation of Seat to Floor Interface - isotropic intercostals for installation of seats and divans. JET AVIATION AG
- [STC ST04243NY](https://openairdocs.org/stc/ST04243NY): Installation of the ALOFT AeroArchitects Auxiliary Fuel System (AFS). ALOFT AeroArchitects
- [STC ST04368AT](https://openairdocs.org/stc/ST04368AT): Installation of a Rockwell Collins CMU-900 ACARS/CPDLC Communication Management Unit P/N 822-1239-151 to provide Data Link communications via existing data link capable VHF Mode 2 (VDLM2), HF and/or SATCOM systems and host the CPDLC application which support EASA Link 2000+ communications. LB Aircraft Engineering Inc
- [STC ST00079IB](https://openairdocs.org/stc/ST00079IB): Integration of Halon-free Portable Fire Extinguisher HAFEX. UMLAUT ENGINEERING GMBH
- [STC ST00215IB](https://openairdocs.org/stc/ST00215IB): Installation of saf-Tglo ECO Photoluminescent Aisle Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST09830DS](https://openairdocs.org/stc/ST09830DS): AVOD Integration on Boeing B737-9 fleet. United Airlines
- [STC ST04585AT](https://openairdocs.org/stc/ST04585AT): Installation of a Cobham AVIATOR 200S Inmarsat / Swift Broadband Satellite Communications System. Avionics Support Group
- [STC ST04071NY](https://openairdocs.org/stc/ST04071NY): Installation of VisionSafe Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST03952NY](https://openairdocs.org/stc/ST03952NY): Installation of Controller-Pilot Data-Link communications. 365 Aerospace Ltd Aerospace Logistics Centre
- [STC ST03403NY](https://openairdocs.org/stc/ST03403NY): Installation of a Intelsat Cabin Connectivity (with demod option) system. Delta Engineering Corporation
- [STC ST04493AT](https://openairdocs.org/stc/ST04493AT): Interior Reconfiguration (Carpet Installation). ZIM Aircraft Cabin Solutions LLC
- [STC ST00161IB](https://openairdocs.org/stc/ST00161IB): Installation of a DK180 Underwater Locator Device (ULD) using Dukane mounting bracket. Fokker Services B.V
- [STC ST00158IB](https://openairdocs.org/stc/ST00158IB): Installation of Tablet Cradle, consisting of the installation of 2 arm mounts on the existing sliding windows (both sides, Captain and First Officer). PMV Engineering
- [STC ST04203AT](https://openairdocs.org/stc/ST04203AT): Installation of a Constant Friction Mount , Cradle, and Integrated Power Supply. Avionics Support Group Inc
- [STC ST11386DS](https://openairdocs.org/stc/ST11386DS): Installation of USB Charging Hubs on the Flight Deck. Aircraft Systems and Manufacturing Inc
- [STC ST00792NY](https://openairdocs.org/stc/ST00792NY): Installation of evacuation slide and compartment assemblies. Air Cruisers
- [STC ST00126IB](https://openairdocs.org/stc/ST00126IB): Replacement of Halon agent with alternate Halon-free Portable Fire Extinguisher agent. AMAC Aerospace Switzerland AG
- [STC ST00140IB](https://openairdocs.org/stc/ST00140IB): Installation of Potable Water Pre-Select system. International Water-Guard Industries Inc
- [STC ST04664NY](https://openairdocs.org/stc/ST04664NY): Activation of Wireless Local Area Network (WLAN) system. AMAC Aerospace AG
- [STC ST00121IB](https://openairdocs.org/stc/ST00121IB): Installation of photoluminescent floor path marking with the option to install LED lighting. Cobalt Aerospace Limited
- [STC ST04562NY](https://openairdocs.org/stc/ST04562NY): Installation of saf-Tglo® SuperSeal UltraLite-X (SSUL-X) Photoluminescent Floor Proximity Emergency Escape Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST00105IB](https://openairdocs.org/stc/ST00105IB): Introduction of Activation of Wireless Charging Systems for Portable Electronic Devices. AMAC AEROSPACE SWITZERLAND AG
- [STC ST04594CH](https://openairdocs.org/stc/ST04594CH): Installation of a Viasat Cellular Data Modem (VCDM). Envoy Aerospace LLC
- [STC ST02747SE](https://openairdocs.org/stc/ST02747SE): Remove existing two (2) Branding Panels from forward monuments and install new two (2) Jamco Branding Panels on Boeing Model 737-9 aircraft. Jamco America, Inc
- [STC SA00787SE](https://openairdocs.org/stc/SA00787SE): Installation of Sliding Carpet Cargo Loading System in the cargo compartment. SBC-America LLC

All 105: https://openairdocs.org/aircraft/N933AK/stcs.md

## Related

- Other Boeing 737-9 aircraft: https://openairdocs.org/model/boeing-737-9/aircraft.md
- The CFM International LEAP-1B28 series engine: https://openairdocs.org/engine/cfm-international-leap-1b28-series.md

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