# N929AK: 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: 43322
- Year built: 2021
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 20, 2021
- Certificate issued: December 28, 2021
- Expires: December 31, 2028
- Mode S code: ACDFA3
- 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=929AK
- Page: https://openairdocs.org/aircraft/N929AK

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 N929AK.

## FAA accident and incident reports

None matched to N929AK.

## Service difficulty reports (43)

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 ASAA2025091761056](https://openairdocs.org/sdr/ASAA2025091761056), Sep 17, 2025: TRANSITION PANEL. CORRODED. UPON ACCOMPLISHING GVI IN AFT CARGO FOUND LT TRANSITION TO HAVE CORROSION STA 727D TO 747. GROUNDED - YES. REMVOED CORROSION ON TRANSITION PANEL FOUND TO BE OUT
- [SDR ASAA2025091761055](https://openairdocs.org/sdr/ASAA2025091761055), Sep 17, 2025: TRANSITION PANEL. CORRODED. UPON ACCOMPLISHING GVI IN AFT CARGO FOUND R/H TRANSITION TO HAVE CORROSION STA 727D TO 747. GROUNDED - YES. REMOVED CORROSION TRANSITION PANEL FOUND TO BE OUT O
- [SDR ASAA2025081060026](https://openairdocs.org/sdr/ASAA2025081060026), Aug 10, 2025: LENS. MISSING. EXIT ROW LIGHT COVER AT PAX SEAT 16F IS MISSING. GROUNDED - YES. INSTALLED EXIT SIGN LENS COVER AT SEAT 16F REF AMM 33-51-01. OPS CHK GOOD.
- [SDR ASAA2025070259205](https://openairdocs.org/sdr/ASAA2025070259205), Jul 2, 2025: SIGN. MISSING. EXIT ROW SIGN LOWER 16F MISSING. GROUNDED - YES. INSTALLED NEW EXIT ROW SIGN AT 16F - P/N 207377-1007 REF AMM 33-51-01.
- [SDR ASAA2025052458223](https://openairdocs.org/sdr/ASAA2025052458223), May 24, 2025: LENS. BROKEN. FA REPORTS EXIT SIGN REAR R2 DOOR DETACHED AND WILL NOT STAY ATTACHED. GROUNDED - YES. FOUND PLASTIC EXIT SIGN R2 BROKEN, REPLACED WITH NEW EXIT R2 SIGN EMERGEN
- [SDR ASAA2025032356758](https://openairdocs.org/sdr/ASAA2025032356758), Mar 23, 2025: LENS. MISSING. EXIT LIGHT LENS COVER AT SEAT 16A MISSING. GROUNDED - YES. REPLACED LIGHT LENS COVER AS REQUIRED.
- [SDR ASAA2025030656427](https://openairdocs.org/sdr/ASAA2025030656427), Mar 6, 2025: GLOWSTRIP. DAMAGED. GLOWSTRIP AT F/C GALLEY CRACKED AND PULLING UP OFF OF FLOOR. GROUNDED - YES. REPLACED PHOTOLUMINESCENT STRIP BETWEEN SEAT ROW 19 ABC THROUGH 22ABC AND IN ROW 1 
- [SDR ASAA2025030556428](https://openairdocs.org/sdr/ASAA2025030556428), Mar 5, 2025: GLOWSTRIP. DAMAGED. GLOW STRIP NEAR AFT GALLEY PULLING UP OFF FLOOR AND NOT GLOWING. GROUNDED - YES. REPLACED PHOTOLUMINESCENT STRIP NEXT TO LAV G IN REF TO AMM 33-51-15.
- [SDR ASAA2025021255948](https://openairdocs.org/sdr/ASAA2025021255948), Feb 12, 2025: LENS. MISSING. ON PREFLIGHT NOTED EXIT SIGN COVER AT SEAT 17F IS MISSING. GROUNDED - YES. REPLACED LENS IAW AMM 33-51-14.
- [SDR ASAA2025011355254](https://openairdocs.org/sdr/ASAA2025011355254), Jan 13, 2025: LENS. BROKEN. LEFT AFT OVERWING EMERGENCY EXIT LIGHT-LENS SCREW BROKEN (ROW 17A). GROUNDED - YES. REPLACED LEFT AFT OVERWING EMERGENCY EXIT LIGHT LENS COVER, SEAMC ROBERT NOT
- [SDR ASAA2023110246128](https://openairdocs.org/sdr/ASAA2023110246128), Nov 2, 2023: FUEL NOZZLE. COKED. TECH SERVICES FOLLOW UP ON CFM CNR 20231103005 #2 ENG (S/N 60A519) TREND DATA SHOWS FUEL NOZZLE PILOT COKING. (#PRI3/ETOPS) (FULL SET FUEL NOZZLE REPLACEMENT 73
- [SDR ASAA2023100445454](https://openairdocs.org/sdr/ASAA2023100445454), Oct 4, 2023: UNKNOWN. UNKNOWN. SAT -1 NOT READY. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023083044847](https://openairdocs.org/sdr/ASAA2023083044847), Aug 30, 2023: UNKNOWN. UNKNOWN. ELEC LIGHT ILLUMINATED ON STARTUP. GROUNDED - YES. PERFORMED IFIM TASK 24-31-00-810-802. SPCU INOP.RESET ELECT LIGHT, RAN #1 ENGTO CONFIRM NO ELECT LIGHT ON PWR
- [SDR ASAA2023080544444](https://openairdocs.org/sdr/ASAA2023080544444), Aug 5, 2023: HEATER. INOPERATIVE. TEMP PROBE LIGHT ILLUMINATED. GROUNDED - YES. REPLACED TAT PROBE IAW AMM 34-21-06. OPS TEST GOOD. ALL PROBES HEAT AND LIGHT IS NO LONGER ILLUMINATED.
- [SDR ASAA2023062943803](https://openairdocs.org/sdr/ASAA2023062943803), Jun 29, 2023: INSERT. PULLED. #2 ENG PNEUMATIC HPSOV LOCK COLLAR THREADED INSERT PULLED OUT. GROUNDED - YES. REMOVE HPSOV #2 ENG REF B737-9 AMM TASK 36-11-07-000-80 INSTALL HPSOV REF AMM TAS
- [SDR ASAA2023062243701](https://openairdocs.org/sdr/ASAA2023062243701), Jun 22, 2023: UNKNOWN. UNKNOWN. CABIN CREW REPORTS R1 GIRT BAR DIFFICULT TO ARM AND DISARM. GROUNDED - YES. ADJUSTED GIRT BAR BRACKET AS REQUIRED AND CLEANED GIRT BAR LATCHED AS NEEDED. ARMED 
- [SDR ASAA2023052943422](https://openairdocs.org/sdr/ASAA2023052943422), May 29, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING ASA T/C 05-020-01. FOUND SMT ENG 1 EEC C1 FAULT CODE 732 451 51 CORRELATED MESSAGE 77-09002 ON LEG-1. ENGINE-1 EEC CHANNEL-B HAS AN INTERNAL
- [SDR ASAA2023052943421](https://openairdocs.org/sdr/ASAA2023052943421), May 29, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING ASA T/C 05-020-01. FOUND SMT ENG 1 EEC C2 FAULT CODE 731 451 51 CORRELATED MAINTENANCE MESSAGE 73-41430 ON LEG-1. DPC-2 HAS NO EEC CHANNEL-B
- [SDR ASAA2023052943420](https://openairdocs.org/sdr/ASAA2023052943420), May 29, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING ASA T/C 05-020-01. FOUND SMT ENG 1 EEC C2 FAULT CODE 73145151 CORRELATED MAINTENENCE MESSAGE 77-09002 LEG-1. ENGINE-1 EEC CHANNEL-B HAS AN I
- [SDR ASAA2023052943392](https://openairdocs.org/sdr/ASAA2023052943392), May 29, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING ASA ASA T/C 05-020-01 FOUND SMT ENG EEC C2 FAULT CODE 731 451 51 CORRELATED MAINTENANCE MESSAGE 73-41420 ON LEG-1. DPC-1 HAS NO EEC CHANNEL-
- [SDR ASAA2023052943390](https://openairdocs.org/sdr/ASAA2023052943390), May 29, 2023: UNKNOWN. UNKNOWN. AFTER STARTING #1 ENGINE, STABILIZED, THEN SHUTDOWN AUTOMATICALLY WITH NO ABNORMAL INDICATIONS. GROUNDED - YES. FOUND FAULT CODE 71-43691 ENGINE STALLED DURING 
- [SDR ASAA2023040842774](https://openairdocs.org/sdr/ASAA2023040842774), Apr 8, 2023: EEC. FAULTY. CFM IS REPORTING A POTENTIAL PROBLEM WITH #1 ENGINE EEC CHANNEL B VIBRATION ANALYSIS HEALTH MODULE(VAHM) WITHIN THE EEC. GROUNDED - YES. STEP1: ENG. 1 "B" EEC P
- [SDR ASAA2023033042665](https://openairdocs.org/sdr/ASAA2023033042665), Mar 30, 2023: UNKNOWN. UNKNOWN. ENROUTE SAT-1 INDICATES NOT READY. GROUNDED - YES. RESET SATCOM C/B P18-2 PANEL E13. PERFORM BITE TEST IAW B737-9 AMM 20-15-00-740-801. SYSTEM TEST PASS NO 30 D
- [SDR ASAA2023032442566](https://openairdocs.org/sdr/ASAA2023032442566), Mar 24, 2023: UNKNOWN. UNKNOWN. AT APPROX. 2000' AGL WITH ENGINE ANTI ICE ON AND AT FLIGHT IDLE. BOTH COWL VALVE LIGHTS ILLUMINATED MOMENTARILY AND BOTH DUCT PRESSURE NEEDLES STARTED FLUCTUATI
- [SDR ASAA2023022442066](https://openairdocs.org/sdr/ASAA2023022442066), Feb 24, 2023: CHARGER. INOPERATIVE. ELEC CAUTION LIGHT ILLUMINATED DURING ENGINE START. LIGHT ILLUMINATED AND REMAINED ON. GROUNDED - YES. TROUBLESHOOTING PER B737-9 IFIM 24-31-00. PERFORMED ELEC 
- [SDR ASAA2023010741533](https://openairdocs.org/sdr/ASAA2023010741533), Jan 7, 2023: MODULATING VALVE. FAILED. DURING ACCOMPLISHMENT OF ASA T/C31-005-00 RH BLEED FAULT FAMV RVDTR MSG 36-12031. GROUNDED - YES. REMOVED & REPLACED FAN AIR MODULATING VALVE ASSY PER ASA T/C M
- [SDR ASAA2022121041096](https://openairdocs.org/sdr/ASAA2022121041096), Dec 10, 2022: FMC. FAILED. DURING DESCENT WITH F/D SELECTED TO FO SIDE RECEIVED SINGLE FMC OPERATION MSG FO LOST COMMAND BARS, AND A/P WENT TO CWS PITCH AND ROLL VTK WAS DISPLAYED ON FO'S
- [SDR ASAA2022111240749](https://openairdocs.org/sdr/ASAA2022111240749), Nov 12, 2022: SHUTOFF VALVE. FAULTED. RT BLEED LIGHT IS ON. GROUNDED - YES. FOUND R/H PRSOV FAULT 36-11-051 AND 36-00171. REPLACED #2 ENGINE PRSOV REF B737-9 AMM 36-11-04. PNEUMATIC LEAK CHECK AND O
- [SDR ASAA2022110940691](https://openairdocs.org/sdr/ASAA2022110940691), Nov 9, 2022: FMC. MALFUNCTIONED. VNAV DISENGAGES AFTER 10 SECONDS OF USE. OBSERVED BEFORE TAKEOFF, CLIMB, AND CRUISE FLIGHT. FMC FUNCTIONS, IRS, GPS, LNAV, AND OTHER AUTOFLIGHT FUNCTIONS ARE NO
- [SDR ASAA2022110840693](https://openairdocs.org/sdr/ASAA2022110840693), Nov 8, 2022: SATCOM. LOCKED. SATCOM LOCK UP. GROUNDED - YES. ASA QRH COMPLETED SATCOM RESET SUCCESSFULLY.
- [SDR ASAA2022102240422](https://openairdocs.org/sdr/ASAA2022102240422), Oct 22, 2022: PRESSURE VALVE. INOPERATIVE. AMBER BLEED#2 LIGHT ILLUMINATED DURING DESCENT INTO KEWR. GROUNDED - YES. PERFORMED OMF INTERROGATION,TEST REVEALED #2 ENG PRSOV VALVE FAILED CLOSED, REMOVED AN
- [SDR ASAA2022091039918](https://openairdocs.org/sdr/ASAA2022091039918), Sep 10, 2022: CIRCUIT BREAKER. FAULTED. HF 2 FAIL LIGHT ON AUDIO PANEL. GROUNDED - YES. CYCLED HF #2 C/B HF 2 INDICATION RESTORED ON ALL RTP'S. VERIFIED GOOD RECEPTION AND CORRECT TRANSMIT TUNING TONE
- [SDR ASAA2022062838851](https://openairdocs.org/sdr/ASAA2022062838851), Jun 28, 2022: FMC. FALSE INDICATION. FMC DISAGREE DISPLAYED DURING PREFLIGHT. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 34-61-00-810-918. OPS TEST NORMAL. DUAL FMC RESTORED.
- [SDR ASAA2022061238637](https://openairdocs.org/sdr/ASAA2022061238637), Jun 12, 2022: DATALINK. FAILED. ATC DATA LINK INDICATES FAIL. GROUNDED - YES. RESET FMC'S REF B737-9 AMM 34-61-00-720-899. CPDLC FUNCTION TEST OK "DATA LINK READY" ATC DATA LINK OPS RESTORED.
- [SDR ASAA2022053138511](https://openairdocs.org/sdr/ASAA2022053138511), May 31, 2022: FMC. FAULTED. FMC DISAGREE. GROUNDED - YES. CYCLED FMC #1 AND #2 C/B'S P18-2 A6 AND P6-1 D16 REF B737-9 IFIM 34-61-00-810-918. NO FAULTS/DISAGREE MSG AFTER RESET. ETOPS SIGNI
- [SDR ASAA2022051338300](https://openairdocs.org/sdr/ASAA2022051338300), May 13, 2022: ANTI-ICE SYSTEM. FAULT MESSAGE. "L VALVE" LIGHT ILLUMINATES WHEN WING ANTI ICE SWITCH IS ON. GROUNDED - YES. PERFORMED OPS CHK OF WING THERMAL ANTI ICE VALVE ON #1 ENGINE REF B737-9 AMM 30-11-
- [SDR ASAA2022050238189](https://openairdocs.org/sdr/ASAA2022050238189), May 2, 2022: CIRCUIT BREAKER. FAILED. WXR FAIL. GROUNDED - YES. RECEIVED MAINT MSG 34-43100 - PULLED AND RESET C/B D13 ON P6-1 DHL PERFORMED 1 B737-9 FIM TASK 34-41-00-810-836 NO ACTIVE MAINT MSG PE
- [SDR ASAA2022041338040](https://openairdocs.org/sdr/ASAA2022041338040), Apr 13, 2022: UNKNOWN. FAILED. ENGINE ANTI ICE ON, THE ANTI ICE PANEL CAUTION LIGHTS STARTED TO FLASH FOLLOWED BY THE DUCT PRESSURE GAUGES FLUCTUATED FROM 60-0 ON BOTH NEEDLES. GROUNDED - YES
- [SDR ASAA2022041237977](https://openairdocs.org/sdr/ASAA2022041237977), Apr 12, 2022: CONTROL UNIT. OVERHEATED. FWD RIGHT WINDOW HEAT OVERHEAT LT CAME ON IN DESCENT. RAN QRH AND WOULD NOT RESET. GROUNDED - YES. REMOVED AND REPLACED NO. 2 WINDOW HEAT CONTROL UNIT. OPS CHEC
- [SDR ASAA2022030237602](https://openairdocs.org/sdr/ASAA2022030237602), Mar 2, 2022: UNKNOWN. UNKNOWN. "FMC DISAGREE" DISPLAYED ON BOTH MCDUS. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918 FMC'S RETURNED TO NORMAL, NO FAULTS OK FOR SERVICE GRD VERIFICATI
- [SDR ASAA2022011637175](https://openairdocs.org/sdr/ASAA2022011637175), Jan 16, 2022: IGNITER. INOPERATIVE. DURING PRE-FLIGHT, OVERHEAD PANEL "MAINT" FOUND ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED #2 ENG R/H IGNITER PLUG REF B737-9 AMM 74-21-02. POWER PLANT T
- [SDR ASAA2022010737097](https://openairdocs.org/sdr/ASAA2022010737097), Jan 7, 2022: UNKNOWN. UNKNOWN. AT CRUISE FMC IS IN CRUISE MODE BUT ND THRUST MODE DISPLAY ABOVE THE ENGINE READOUT SHOWS CLB. DURING DESCENT FMC DISPLAYS DESCENT AND THRUST MODE INDICATES CRZ
- [SDR ASAA2022010137070](https://openairdocs.org/sdr/ASAA2022010137070), Jan 1, 2022: UNKNOWN. UNKNOWN. "ENG 1 EEC C1" FAULT FOUND ON SMT. MAINT MSG 73-43981 - ELECTRONIC OVERSPEED THRUST CONTROL MALFUNCTION ACCOMODATION TEST FAILED. GROUNDED - YES. VERIFIED NO OM

## Service difficulty reports on N929AK not matched to an aircraft (1)

They name N929AK, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR OZTA2014FA0000044](https://openairdocs.org/sdr/OZTA2014FA0000044), Jan 15, 2014: WIRE. CHAFED. PRIMARY LANDING GEAR DOWN, INDICATOR FAILURE GEAR LIGHTS CIRCUIT BREAKER TRIPPED & "FLT ANN." CIRCUIT BREAKER TRIPPED. TROUBLESHOT SYSTEM AND FOUND WIRES CHAFED

## 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/N929AK/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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