# N926AK: 2021 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: 43314
- Year built: 2021
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 7, 2021
- Certificate issued: December 15, 2021
- Expires: December 31, 2028
- Mode S code: ACD47E
- 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=926AK
- Page: https://openairdocs.org/aircraft/N926AK

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 N926AK.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 20240213000719I](https://openairdocs.org/incident/20240213000719I), Feb 13, 2024: Boeing 737-9 (N926AK), Portland, OR, Minor damage. #1 Engine, #11 fan blade pn 364-850-009-6 sn HF914551-5 has trailing edge crack out of limits, also found fan blade #12 damaged. Performed 2 pairs fan blade…

## Service difficulty reports (44)

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 ASAA2023110246027](https://openairdocs.org/sdr/ASAA2023110246027), Nov 2, 2023: UNKNOWN. UNKNOWN. #1 FMC FROZEN ON ACARS PAGE. NO FUNCTION BUTTONS WORK. GROUNDED - YES. OMF SHOWS NO ASSOCIATED PRESENT LEG OR EXISTING FAULTS. FAULT HISTORY SHOWS FC 34-69001 /
- [SDR ASAA2023101145570](https://openairdocs.org/sdr/ASAA2023101145570), Oct 11, 2023: PROCESSOR. FAULTY. AMBER PWS FAIL AND WXR FAIL ON BOTH NDS DURING TAKEOFF. GROUNDED - YES. (RESOLVED ON W/O: 1973307 TASKCARD: N/R-00001 ) FOUND FAULT CODE: "34-43100 WXR PROCESSO
- [SDR ASAA2023092845363](https://openairdocs.org/sdr/ASAA2023092845363), Sep 28, 2023: UNKNOWN. UNKNOWN. OVERHEAD AMBER MAINT LIGHT ILLUMINATED AFTER TOUCHDOWN. GROUNDED - YES. FOLLOWED B737-9 IFIM TASK G71-00-00-810-938 AND IFIM TASK G71-00-00-810-836, INITIAL EVA
- [SDR ASAA2023091145062](https://openairdocs.org/sdr/ASAA2023091145062), Sep 11, 2023: VALVE. UNKNOWN. #1 ENG HPSOV MANUAL LOCK BOLT HELICOIL INSERT UNTHREADED FROM VALVE. MIG 2C 40-0051333 INIT. GROUNDED - YES. INSTALLED NEW HELICOIL INSERT IN HPSOV VALVE. REF H
- [SDR ASAA2023090344949](https://openairdocs.org/sdr/ASAA2023090344949), Sep 3, 2023: FILTER. DIRTY. #1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1/ETOPS) CNR 20230902059DO NOT EXTEND. GROUNDED 
- [SDR ASAA2023082844831](https://openairdocs.org/sdr/ASAA2023082844831), Aug 28, 2023: UNKNOWN. UNKNOWN. MAINT LIGHT ON AFTER LANDING. GROUNDED - YES. C/W FAULT INTEROGATION FOR MX MSG PER AMM 31-65-00. FOUND ENGINE 2 OIL DEBRI STRATUS MSG REF IFIM G79-20-00-810-80
- [SDR ASAA2023082844821](https://openairdocs.org/sdr/ASAA2023082844821), Aug 28, 2023: UNKNOWN. UNKNOWN. MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED DURING LANDING ROLL. GROUNDED - YES. MAINT. LIGHT DETERMINED TO BE #2 ENGINE OIL DEBRIS. PERFORMED ODMS INSPECTION REF
- [SDR ASAA2023082544801](https://openairdocs.org/sdr/ASAA2023082544801), Aug 25, 2023: UNKNOWN. UNKNOWN. ON LANDING ROLLOUT MAINT LIGHT ILLUMINATED. GROUNDED - YES. REF W/O #1967096 OM L/P 60665066 FOR TSR714887 #2 ENGINE ODMS. DEBRIS FOUND ON ODMS SENOR ONLY. PHOT
- [SDR ASAA2023080444439](https://openairdocs.org/sdr/ASAA2023080444439), Aug 4, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE ON BOTH NAV DISPLAY. GROUNDED - YES. RECYCLED C/B'S FOR FMC'S PER IFIM 34-61-00-810-924; RESETED TO NORMAL. PERFORMED FMC OPERATIONAL TEST NORMAL. 
- [SDR ASAA2023071644047](https://openairdocs.org/sdr/ASAA2023071644047), Jul 16, 2023: UNKNOWN. UNKNOWN. #1 SPAR VALVE CLOSED LIGHT ON BRIGHT BLUE. GROUNDED - YES. REF B737-9 WDM 28-21-11 & B737-9 AMM 20-60-01 INSPECTED C/B P6-3 B-4 THAT WAS FOUND "OUT" & RESET C/B
- [SDR ASAA2023052043297](https://openairdocs.org/sdr/ASAA2023052043297), May 20, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE MESSAGE ON BOTH ND'S. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918. 1 EA C/B ON P18-2 & 1 EA ON P6-1 OPENED, RESET. FMC DISAGREE MESSAGE 
- [SDR ASAA2023050243086](https://openairdocs.org/sdr/ASAA2023050243086), May 2, 2023: UNKNOWN. UNKNOWN. DURING CRUISE WITH WEATHER RADAR ON WITH RECEIVED PWS FAIL AND WX FAIL TURNED OFF THEN ON OPS NORMAL. GROUNDED - YES. PERFORMED B737-9 FIM TASK 34-41-00-810-818
- [SDR ASAA2023041742903](https://openairdocs.org/sdr/ASAA2023041742903), Apr 17, 2023: UNKNOWN. UNKNOWN. FUELER REPORTS LEAK AT FUEL RECEPTACLE. GROUNDED - YES. REPLACED AND RESECURED HARDWARE ON PRESSURE REFUELING RECEPTACLE REF B737-9 AMM TASK 28-21-11-400-801.
- [SDR ASAA2023040842765](https://openairdocs.org/sdr/ASAA2023040842765), Apr 8, 2023: UNKNOWN. UNKNOWN. WINDOW OVERHEAT R2 ON GROUND IN DENVER GROUNDED - YES. PERFORMED QRH 3.7 AFTER RESET CAUTION STAYED EXTINGUISHED.
- [SDR ASAA2023030642209](https://openairdocs.org/sdr/ASAA2023030642209), Mar 6, 2023: CHARGER. INOPERATIVE. OVERHEAD ELEC ANNUNCIATOR ILLUMINATED ON TAXI OUT. GROUNDED - YES. REF B737-9 IFIM 24-31-00-810-802 BITE SHOWS "AUX BATT CHGR INOP" REPLACED AUX CHARGER REF B73
- [SDR ASAA2023030342177](https://openairdocs.org/sdr/ASAA2023030342177), Mar 3, 2023: UNKNOWN. UNKNOWN. ON DESCENT WITH WING ANTI-ICE ON, "R VALVE" LIGHT ILLUMINATED. WITH SWITCH IN THE OFF POSITION, LIGHT EXTINGUISHED. GROUNDED - YES. REF ASA DATA SUPPLEMENT, C/W
- [SDR ASAA2023022042012](https://openairdocs.org/sdr/ASAA2023022042012), Feb 20, 2023: UNKNOWN. UNKNOWN. FMC 1 AND 2 BOTH RESET AT FL310 AND 20 MINUTES INTO FLIGHT. CYCLED FLIGHT DIRECTOR'S AND FMC'S 1 AND 2 RESUMED OPS. GROUNDED - YES. REF B737-9 IFIM TASK 34-61-0
- [SDR ASAA2023021741995](https://openairdocs.org/sdr/ASAA2023021741995), Feb 17, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE MSG ON CDU. GROUNDED - YES. CYCLED FMCS CMPTR 1/2 C/BS REF B737-9 IFIM 34-61-00-810-918. OPS NML.
- [SDR ASAA2023010971451](https://openairdocs.org/sdr/ASAA2023010971451), Jan 7, 2023: FMC. FAULTED. MAP FAIL FLAG ON FO ND AND NO VSPD ON FO PFD. GROUNDED - YES. REF B737-9 IFIM TASK 31-00-00-810-803 FOUND R/H FMC AND L/H FMC INT FAULT USED TRANSFER SWITCH AND
- [SDR ASAA2022122941366](https://openairdocs.org/sdr/ASAA2022122941366), Dec 29, 2022: ENGINE. MAKING METAL. #2 ENGINE OIL FILTER BYPASS CAUTION. ALL ENGINE BLOCK BLINKING CONTINUOUSLY. GROUNDED - YES. FOUND FAULT 79-42895 "OIL FILTER IMPENDING BYPASS" IN PRESENT LEG F
- [SDR ASAA2022122841277](https://openairdocs.org/sdr/ASAA2022122841277), Dec 28, 2022: FMC. FAULTED. FMC DISAGREE MESSAGE ON GROUND. GROUNDED - YES. COMPLETED CHECKLIST SUCCESSFULLY.
- [SDR ASAA2022122761247](https://openairdocs.org/sdr/ASAA2022122761247), Dec 26, 2022: FMC. FAULTED. FMC DISAGREE. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918, FAULT SYMPTOM NO LONGER ACTIVE, BOTH FMC'S NORMAL.
- [SDR ASAA2022122741241](https://openairdocs.org/sdr/ASAA2022122741241), Dec 24, 2022: ANTI-ICE VALVE. FAULTED. ENGINEERING REQUEST FOR RH WING ANTI ICE VALVE LIGHT ILLUMINATION ON DESCENT. GROUNDED - YES. REMOVED AND REPLACED RH WING ANTI-ICE VALVE REF B737-9 AMM 30-11-1
- [SDR ASAA2022121341120](https://openairdocs.org/sdr/ASAA2022121341120), Dec 13, 2022: FMC. FAULTED. FMC DISAGREE ON CDU. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918. RESET 2 C/B. OPS CHECK GOOD. GROUND VERIFICATION TEST GOOD.
- [SDR ASAA2022110640652](https://openairdocs.org/sdr/ASAA2022110640652), Nov 6, 2022: FMC. FAILED. CAPT FMC FAIL WITH VTK AND BOTH MCDU'S BLANK. SYSTEM FIXED ITSELF AND OPERATED NORMALLY BEFORE PERFORMING QRH. GROUNDED - YES. PER B737-9 FIM 34-61-836 FMC OPS 
- [SDR ASAA2022102540481](https://openairdocs.org/sdr/ASAA2022102540481), Oct 25, 2022: ANTI-ICE VALVE. FAULTED. DURING DESCENT, SELECTED WING ANTI-ICE SWITCH ON AND L VALVE LIGHT ILLUMINATED. TURNED WING ANTI-ICE SWITCH OFF AND LIGHT WENT OUT. IT OCCURRED AS WE WERE DESCE
- [SDR ASAA2022102340443](https://openairdocs.org/sdr/ASAA2022102340443), Oct 23, 2022: ANTI-ICE VALVE. FALSE INDICATION. L VALVE WING ANTI ICE ILLUMINATED AFTER SELECTING IT ON AT 19,000' TURNED IT BACK ON AROUND 9000' AND IT DID NOT RE-ILLUMINATE. GROUNDED - YES. REF B737-9 IFIM 
- [SDR ASAA2022102040418](https://openairdocs.org/sdr/ASAA2022102040418), Oct 20, 2022: LIGHT. INOPERATIVE. EMERGENCY OVERHEAD LIGHT @ ROW 23 INOP. GROUNDED - YES. PERFORMED CONTINUITY CHECK OF PIN B AT D14714 TO GROUND, DURING VISUAL INSPECTION FOUND BROKEN GROUND PI
- [SDR ASAA2022100540162](https://openairdocs.org/sdr/ASAA2022100540162), Oct 5, 2022: BRACKET. LOOSE. F.O.'S FMC METAL BRACKET/HANDLE IS LOOSE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2022100540179](https://openairdocs.org/sdr/ASAA2022100540179), Oct 5, 2022: HEADS-UP DISPLAY. INACCURATE. HGS WORKED FINE. AUTOLAND TRIED TO LAND ABOUT 50' LEFT OF CENTER LINE. RUNWAY 16R. ILS CRITICAL AREA CLEAR, CALM WINDS. GROUNDED - YES. PERFORMED B737-9 IFIM 22
- [SDR ASAA2022093040134](https://openairdocs.org/sdr/ASAA2022093040134), Sep 30, 2022: APU. FAILED. FAULT LIGHT CAME ON TWICE WHEN STARTING APU. GROUNDED - YES. REMOVED AND REPLACED APU ECU REF B737-9 AMM 49-61-12.
- [SDR ASAA2022081039500](https://openairdocs.org/sdr/ASAA2022081039500), Aug 10, 2022: MODULATING VALVE. FAULTY. MAINT LIGHT ON OVERHEAD PANEL WITH BLEED FAMV R INDICATION. GROUNDED - YES. REMOVED AND REPLACED RH FAN AIR MODULATING VALVE REF. B737-9 AMM 36-12-03/401.
- [SDR ASAA2022080939455](https://openairdocs.org/sdr/ASAA2022080939455), Aug 9, 2022: MODULATING VALVE. WARNING LIGHT. ON LANDING, GOT MASTER CAUTION OVERHEAD MAINT. LIGHT. GROUNDED - YES. STATUS PG. SHOWS BLEED FAMV R MSG. WITH INBD FLT DECK EFFECT MAINT. MSG. 36-12021 ENG 2 FA
- [SDR ASAA2022080639401](https://openairdocs.org/sdr/ASAA2022080639401), Aug 6, 2022: MODULATING VALVE. WARNING LIGHT. 'MAINT' AMBER LIGHT ON OVERHEAD PANEL ILLUMINATED AFTER LANDING. GROUNDED - YES. REMOVED AND REPLACED FAN AIR MODULATING VALVE (L/H) REF. B737-9 AMM 36-12-03/40
- [SDR ASAA2022080539398](https://openairdocs.org/sdr/ASAA2022080539398), Aug 5, 2022: PROCESSOR. FAULTY. WX RADAR IS WEAK, STORM THAT WOULD NORMALLY DISPLAY AT 150 NM DONT DISPLAY UNTIL 60 NM, STORMS TOWERING TO 50,000' WITH CONFIRMED LIGHTNING DISPLAYS GREEN AND Y
- [SDR ASAA2022070938984](https://openairdocs.org/sdr/ASAA2022070938984), Jul 9, 2022: FCU. FAULTY. REF ASA TSR712591 TECH SERVICES REQUEST FOLLOW UP DUE TO HISTORY OF AFCS A/T DC-1 CIRCUIT BREAKER POPPING DURING ENGAGEMENT OF AUTO THROTTLE. FCC-A REPLACEMENT 
- [SDR ASAA2022070338910](https://openairdocs.org/sdr/ASAA2022070338910), Jul 3, 2022: FMC. INTERMITTENT. ON THE GROUND, HAD FMC DISAGREE IN SCRATCH PAD AND NAV DISPLAYS. GROUNDED - YES. COMPLETED GROUND PROCEDURE FROM QRH, MESSAGE CLEARED.
- [SDR ASAA2022070238896](https://openairdocs.org/sdr/ASAA2022070238896), Jul 2, 2022: ACTUATOR. FAULTY. AFTER LANDING MAINT LIGHT ON OVERHEAD PANEL ILLUMINATED. GROUNDED - YES. STATUS PAGE SHOWING MSG: PACK RAM AIR SYSTEM R, MAINT MESSAGE 21-55001. B737-9 IFIM TAS
- [SDR ASAA2022062438789](https://openairdocs.org/sdr/ASAA2022062438789), Jun 24, 2022: CIRCUIT BREAKER. POPPED. ON TAXI AUTO THROTTLE WOULD NOT ENGAGE & TRIPPED A/T CB. GROUNDED - YES. PERFORMED C/B RESET OF C/B DC1 IAW B737-9 AMM 20-60-01. NO DEFECTS NOTED. PERFORMED A/T
- [SDR ASAA2022050938233](https://openairdocs.org/sdr/ASAA2022050938233), May 9, 2022: CHIP DETECTOR. OUT OF LIMITS. CFM IS REPORTING #2 ENGINE ODMS CHIP COUNT INCREASE OVER CONSECUTIVE FLIGHTS. GROUNDED - YES. PERFORMED TSR STEPS 1-6 ON #2 ENGE FOUND NO DEBRIS IN SCAVENGE SCR
- [SDR ASAA2022050238221](https://openairdocs.org/sdr/ASAA2022050238221), May 2, 2022: FREQUENCY GEN. FAULT MESSAGE. BOTH HF 2 FREQUENCY INDICATORS DISPLAY FAIL. GROUNDED - YES. VERIIFIED "FAIL" ON BOTH HF #2 WINDOW, REPLACED NEW HF #2 TRANSCEIVER & INSTALLATION TEST PASSED B7
- [SDR ASAA2022042638131](https://openairdocs.org/sdr/ASAA2022042638131), Apr 26, 2022: CIRCUIT BREAKER. POPPED. AUTO THROTTLE DC#1 CB POPPED. GROUNDED - YES. PERFORMED C/B RESET REF B737-9 AMM 20-60-01, PERFORMED A/T OPS TEST REF AMM 22-31-00 NO DEFECTS NOTED.
- [SDR ASAA2022032337794](https://openairdocs.org/sdr/ASAA2022032337794), Mar 23, 2022: ECU. INOPERATIVE. APU FAULT LIGHT ILLUMINATES ON ATTEMPTED APU START. GROUNDED - YES. ACCOMPLISHED APU BITE TEST, FOUND ACTIVE MAINTENANCE MESSAGE 49-89002 " ONBOARD MAINTENANCE 
- [SDR ASAA2021121536914](https://openairdocs.org/sdr/ASAA2021121536914), Dec 15, 2021: UNKNOWN. UNKNOWN. SPEED TRIM FAIL ILLUMINATES ON MASTER CAUTION RECALL. EXTINGUISHES W/RESET. GROUNDED - YES. NO CURRENT FAULTS OR FAULT HISTORY. SYS OPS NORMAL REF B737-9 AMM 22

## 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/N926AK/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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