# N956AK: 2023 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-1B28B series](https://openairdocs.org/engine/cfm-international-leap-1b28b-series) (registry code 13124)
- 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: 43360
- Year built: 2023
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 3, 2023
- Certificate issued: January 18, 2023
- Expires: January 31, 2030
- Mode S code: AD4AFB
- Registered owner: [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE)
- Location: [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City)
- Owner type: Corporation
- Owner's area on the map: 40.7558° N, 111.8843° W: Placed by OpenAirDocs at the center of ZIP code 84111, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=956AK
- Page: https://openairdocs.org/aircraft/N956AK

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-1B28B 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-1B28B 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 N956AK.

## FAA accident and incident reports

None matched to N956AK.

## Service difficulty reports (37)

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 ASAA2025080159827](https://openairdocs.org/sdr/ASAA2025080159827), Aug 1, 2025: GLOWSTRIP. MISSING. FIRST SECTION OF PHOTOLUMINESCENT FLOOR PATH MARKING MISSING ON RIGHT SIDE. GROUNDED - YES. REPLACED MISSING SECTION OF PHOTLUMINESCENT FLOOR MARKING REF AMM 33
- [SDR ASAA2025050257739](https://openairdocs.org/sdr/ASAA2025050257739), May 2, 2025: LIGHT. DETACHED. EMERGENCY EXIT CEILING LIGHT FIXTURE NEAR EXIT ROW IS LOOSE AND HANGING BY ITS WIRE. GROUNDED - YES. REINSTALLED EMEGY EXIT SIGN AT ROW 16 OPS GOOD PER AMM 33-5
- [SDR ASAA2023102445820](https://openairdocs.org/sdr/ASAA2023102445820), Oct 24, 2023: MODULATING VALVE. FAULTY. WHILE T/S #1 ENG IGNITION FOUND ACTIVE/LATCHED FAULT ON ENG.#1 FAMV RVDT SIGNAL IS OUT OF RANGE MSG # 36-12030 CORRELATED TO FDE BLEED FAMV L SMT FAULT CODE 361
- [SDR ASAA2023102145769](https://openairdocs.org/sdr/ASAA2023102145769), Oct 21, 2023: EXCITER. FAULTY. #1 ENG. WILL NOT START WITH IGN. R/H STARTS NORMAL WITH IGN. L/H. GROUNDED - YES. (RESOLVED ON W/O: 1974578 TASKCARD: N/R-00001 ) FOUND FAULT HISTORY FOR #1 ENG
- [SDR ASAA2023102145784](https://openairdocs.org/sdr/ASAA2023102145784), Oct 21, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING TC 31-005-00, FAULT "FAMV RVDT SIGNAL IS OUT OF RANGE" MTX MSG 36-12030 DISCOVERED. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 36-12-00-810-803
- [SDR ASAA2023101145585](https://openairdocs.org/sdr/ASAA2023101145585), Oct 11, 2023: UNKNOWN. UNKNOWN. RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED ON LANDING ROLL. GROUNDED - YES. LIGHT EXTINGUISHED PER PILOT QRH.
- [SDR ASAA2023093045647](https://openairdocs.org/sdr/ASAA2023093045647), Sep 30, 2023: FILTER. FAULTED. TECH SERVICE REQUEST. FOLLOW UP ON ENGINE-1 FAMV RVDT SIGNAL IS OUT OF RANGE DETECTED BY: INTEGRATED AIR SYSTEMS CONTROLLER (IASC)-LEFT CODE 36-12030.(#PRI 2) E
- [SDR ASAA2023092545302](https://openairdocs.org/sdr/ASAA2023092545302), Sep 25, 2023: UNKNOWN. UNKNOWN. WHILE PERF TC # 31-005-00 FOUND #1 ENG FAMV LEFT SIGNAL OUT OF RANGE MX MSG 36-12030. GROUNDED - YES. PERF LRU TEST FOR MX MSG 36-12030 IAW B737-9 AMM 36-00-00-
- [SDR ASAA2023091145082](https://openairdocs.org/sdr/ASAA2023091145082), Sep 11, 2023: UNKNOWN. UNKNOWN. APU FAULT LIGHT ILLUMINATED ON FIRST START ATTEMPT. GROUNDED - YES. ACCOMPLISHED IFIM 49-40-00-810-805. NO FAULTS FOUND OR ACTIVE. APU STARTED NORMAL PER IFIM I
- [SDR ASAA2023091045058](https://openairdocs.org/sdr/ASAA2023091045058), Sep 10, 2023: UNKNOWN. UNKNOWN. ON T/C 31-005-00 FOUND FAULT CODE 36-12030 BLEED FAMV RVDT L. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090945031](https://openairdocs.org/sdr/ASAA2023090945031), Sep 9, 2023: UNKNOWN. UNKNOWN. WE SUCCESSFULLY LOGGED ON TO CPDLC ON THE GROUND IN PDX. AUTOMATIC TRANSFER FROM KUSA TO KZAK WAS SUCCESSFUL. RECEIVED AUTOMATED MESSAGE TO CONFIRM CPDLC LINK. 
- [SDR ASAA2023082644797](https://openairdocs.org/sdr/ASAA2023082644797), Aug 26, 2023: UNKNOWN. UNKNOWN. MAINT LIGHT ILLUMINATED ON GROUND. GROUNDED - YES. FOUND MAINT LIGHT ILLUMINATED , DUE TO LEFT AND RIGHT ENG #1 IGNITER FAULT, PERFORMED B737-9 IFIM TASK G74-00
- [SDR ASAA2023081544632](https://openairdocs.org/sdr/ASAA2023081544632), Aug 15, 2023: UNKNOWN. UNKNOWN. FUEL LEAK OUT OF RIGHT WING VENT. GROUNDED - YES. TRANSFERED FUEL FROM #2 MAIN TANK VERIFIED SURGE TANK EMPTY IRT AMM 28-26-00 VERIFIED #2 TANK FUEL SHUT-OFF VA
- [SDR ASAA2023081444618](https://openairdocs.org/sdr/ASAA2023081444618), Aug 14, 2023: ELECTRONIC UNIT. FAULTY. IN CRUISE FL350, .78 MACH, APPROX 265 IAS, LE FLAPS TRANSIT ILLUMINATED. #8 LE SLAT INDICATOR SHOWED FULL EXTEND AND SLAT APPEARED EXTENDED. BOTH LIGHTS WENT OU
- [SDR ASAA2023072444213](https://openairdocs.org/sdr/ASAA2023072444213), Jul 24, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE. GROUNDED - YES. PERFORMED GOOD OPERATIONAL TEST OF FMC REF AMM 34-61-00-710-801.
- [SDR ASAA2023071243985](https://openairdocs.org/sdr/ASAA2023071243985), Jul 12, 2023: UNKNOWN. UNKNOWN. ON ROLL OUT OVERHEAD MAINT LIGHT CAME ON. GROUNDED - YES. FOUND STATUS MESSAGE 21-55011 - "RIGHT AIR CONDITIONING PACK EXIT DOOR ACTUATOR HAS SIGNAL ERROR." RES
- [SDR ASAA2023062943813](https://openairdocs.org/sdr/ASAA2023062943813), Jun 29, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING T/C 31-005-00 FOUND SMT SHORT TIME FAULT ENG 2EEC C1. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062943812](https://openairdocs.org/sdr/ASAA2023062943812), Jun 29, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING T/C 05-020-01 DISCOVERED (SMT) MESSAGE ENG 2 EEC C2. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023062743778](https://openairdocs.org/sdr/ASAA2023062743778), Jun 27, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING T/C 05-020-01 FOUND NOT ACTIVE FAULT 71-43692 ENG STALLED DURING START ON ENG 1. GROUNDED - YES. FOLLOWING IFIM TASK G-71-00-00-810-870 NO C
- [SDR ASAA2023062243670](https://openairdocs.org/sdr/ASAA2023062243670), Jun 22, 2023: UNKNOWN. UNKNOWN. SPEED TRIM FAIL ILLUMINATED DURING DESCENT WITH MASTER CAUTION RECALL. EXTINGUISHED WHEN MASTER CAUTION WAS RESET. GROUNDED - YES. ACCOMPLISHED IFIN, TASK 22-11
- [SDR ASAA2023060743502](https://openairdocs.org/sdr/ASAA2023060743502), Jun 7, 2023: MODULATING VALVE. OUT OF RANGE. WHILE ACCOMPLISHING ASA T/C 31-005-00 FOUND SMT MESSAGE BLEED FAMV RVDT L SIGNAL IS OUT OF RANGE MAINTENANCE MESSAGE 36-12030. GROUNDED - YES. ACCOMPLISHED B737
- [SDR ASAA2023060543476](https://openairdocs.org/sdr/ASAA2023060543476), Jun 5, 2023: UNKNOWN. UNKNOWN. ON DESCENT, L FWD WINDOW HEAT OVERHEAT LIGHT CAME ON. AFTER 5 MIN COOL DOWN, OVERHEAT LIGHT CAME BACK ON WHEN WINDOW HEAT WAS TURNED BACK ON. GROUNDED - YES. PE
- [SDR ASAA2023052643377](https://openairdocs.org/sdr/ASAA2023052643377), May 26, 2023: UNKNOWN. UNKNOWN. WX RADAR DEPICTS A RETURN FROM THE NOSE TO END OF RANGE THAT IS CONSISTENTLY POINTED 20* DEGREES LEFT OF NOSE. GROUNDED - YES. PERFORMED SYSTEM RESET OF THE WXR
- [SDR ASAA2023052543407](https://openairdocs.org/sdr/ASAA2023052543407), May 25, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING ASA T.C. #31-005-00, SMT HAS LATCHED MTX MSG BLEED FAMV RVDT L. GROUNDED - YES. PERFORMED B737-9 FIM TASK 36-12-00-810-803 FOR MTX MSG BLEED FA
- [SDR ASAA2023051843263](https://openairdocs.org/sdr/ASAA2023051843263), May 18, 2023: UNKNOWN. UNKNOWN. SINGLE FMC AND FO MAP FLAG ON NAV DISPLAY. GROUNDED - YES. VERIFIED - NO CURRENT FAULTS ON EITHER FMC , NO FAULTS ON STATUS PAGE OF OMF. CYCLED OVERHEAD FMC SW 
- [SDR ASAA2023051143218](https://openairdocs.org/sdr/ASAA2023051143218), May 11, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE THEN DISAPPEARED. GROUNDED - YES. PERFORMED GOOD OPS TEST OF FMC REF B737-9 AMM 34-61-00-710-801.
- [SDR ASAA2023050443156](https://openairdocs.org/sdr/ASAA2023050443156), May 4, 2023: UNKNOWN. UNKNOWN. APU FAULT ON TAXI IN. APU WOULD NOT START. GROUNDED - YES. FOUND FAULT 49130100 WITH ASSOCIATED MAINT MSG 49-41012 AND WAS NOT ACTIVE. STARTED B737-9 IFIM 49-40
- [SDR ASAA2023041442902](https://openairdocs.org/sdr/ASAA2023041442902), Apr 14, 2023: PANEL. FAULTY. ON TAKE-OFF ROLL ELEC 2 HYDRAULIC LOW PRESSURE LIGHT ILLUMINATED. GROUNDED - YES. FOUND C/B C881 (F3) IN P92 PANEL OUT. INSPECTED HYD PUMP D02664 + NO DEFECTS F
- [SDR ASAA2023041242815](https://openairdocs.org/sdr/ASAA2023041242815), Apr 12, 2023: UNKNOWN. UNKNOWN. SPEED TRIM FAIL LIGHT ON RECALL. EXTINGUISHES WITH CAUTION RESET. GROUNDED - YES. DFCS CHANNEL B LOGGED 22-11186 MAINT MESSAGE, ONLY FAULT. PERFORMED B737-9 IFI
- [SDR ASAA2023032742617](https://openairdocs.org/sdr/ASAA2023032742617), Mar 27, 2023: UNKNOWN. UNKNOWN. WING ANTI-ICE L-VALVE AND MASTER CAUTION WHEN TURNED ON INFLIGHT. GROUNDED - YES. PERFORMED L/H WING TAI HEALTH CHECK REF B737-9 AMM TASK 30-11-11-200-801. DURI
- [SDR ASAA2023032642602](https://openairdocs.org/sdr/ASAA2023032642602), Mar 26, 2023: UNKNOWN. UNKNOWN. IN CRUISE LOSS OF LNAV & VNAV WITH FMC P/RST LIGHT & NO FMC ON EITHER CDU. NO MAP INFO ON CAPT DISPLAY. REFERRED QRH & POSITIONED FMC SWITCH TO BOTH ON RIGHT WH
- [SDR ASAA2023032042428](https://openairdocs.org/sdr/ASAA2023032042428), Mar 20, 2023: UNKNOWN. UNKNOWN. SPEED TRIM FAIL AFTER START. GROUNDED - YES. PERFORMED DFCS BITE LIBRARY TEST FOR SPEED TRIM REF B737-9 FIM 22-11-00-810-D73. TEST PASSED, NO FURTHER FAULTS.
- [SDR ASAA2023012741704](https://openairdocs.org/sdr/ASAA2023012741704), Jan 27, 2023: FMC. FALSE INDICATION. DURING PREFLIGHT FOUND FMC DISAGREE MESSAGE ON ND. GROUNDED - YES. PERFORMED QRH PROCEDURE MESSAGE CLEARED.
- [SDR ASAA2023012541847](https://openairdocs.org/sdr/ASAA2023012541847), Jan 25, 2023: CONNECTOR. NOT REPORTED. LEFT TANK FUEL INBALANCE: MONITORED FUEL FROM SAN - FLL. NO IMBALANCE UNTIL CONFIGURING FOR LDG. ON LONG FINAL LEFT TANK FUEL IMBALANCE MSG ON LDG LFT TANK @ 3.
- [SDR ASAA2023012301590](https://openairdocs.org/sdr/ASAA2023012301590), Jan 20, 2023: UNKNOWN. MALFUNCTIONED. # 1 MAIN FUEL TANK FLUCTUATES + AND - 1,000 LBS. CONFIRMED BY FUEL USED. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 28-41-00-810-802. NO FAULTS FOUND. GOOD FOR 
- [SDR ASAA2023012391591](https://openairdocs.org/sdr/ASAA2023012391591), Jan 19, 2023: CONNECTOR. UNSECURE. APPROX. 2:15 INTO FLIGHT IMBAL ALERT ANNUNCIATED. #1 MAIN TANK WAS 1300 LBS LESS THAN #2 TANK. THERE WAS 3000 LBS IN CENTER TANK. WHEN CENTER TANK WAS EMPTY WE 
- [SDR ASAA2023011871552](https://openairdocs.org/sdr/ASAA2023011871552), Jan 17, 2023: FMC. FAULTED. BOTH FMC'S ARE MESSAGING " FMC DISAGREE". GROUNDED - YES. PER B737-9 IFIM TASK 34-61-00-810-918 RECYCLED THE POWER FOR FMC. PERFORMED FMC OPS CHECK GOOD. REF B7

## 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/N956AK/stcs.md

## Related

- Other Boeing 737-9 aircraft: https://openairdocs.org/model/boeing-737-9/aircraft.md
- The CFM International LEAP-1B28B series engine: https://openairdocs.org/engine/cfm-international-leap-1b28b-series.md

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