# N977AK: 2022 Boeing 737-9

- Status: Valid registration
- Airframe: [Boeing 737-9](https://openairdocs.org/model/boeing-737-9) (registry code 138469A, 48 seats)
- Engine: [CFM International LEAP-1B28 series](https://openairdocs.org/engine/cfm-international-leap-1b28-series) (registry code 13120)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company), [TCDS E00088EN](https://openairdocs.org/tcds/E00088EN) (CFM International S.A.) (OpenAirDocs)
- Serial number: 43391
- Year built: 2022
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: March 31, 2022
- Certificate issued: July 1, 2022
- Expires: July 31, 2029
- Mode S code: AD9DB0
- Registered owner: [Alaska Airlines Inc](https://openairdocs.org/faa-owner/ALASKA%20AIRLINES%20INC)
- Location: [Seatac, WA](https://openairdocs.org/faa-place/WA/Seatac)
- Owner type: Corporation
- Owner's area on the map: 47.4466° N, 122.2721° W: Placed by OpenAirDocs at the center of ZIP code 98188, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=977AK
- Page: https://openairdocs.org/aircraft/N977AK

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 N977AK.

## FAA accident and incident reports

None matched to N977AK.

## Service difficulty reports (41)

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 ASAA2026101169221](https://openairdocs.org/sdr/ASAA2026101169221), Oct 11, 2026: LIGHT. INTERMITTENT. 17A EMERGENCY LIGHT FLICKERING. GROUNDED - YES. PREVIOUSLY WRITTEN UP. REF LP 61339523. VERIFIED WITH SEAMC THAT MEL IS APPLICABLE.
- [SDR ASAA2026060266464](https://openairdocs.org/sdr/ASAA2026060266464), Jun 2, 2026: PLACARD. OUT OF POSITION. ROW 16DEF "EXIT/SALIDA" PLACARD HAS DIRECTION ARROW FACING THE WRONG WAY AWAY FROM EMERGENCY EXIT. GROUNDED - YES. REPLACED EXIT LENS FLOOR COVER ROW 16DEF PER 
- [SDR ASAA2026011463825](https://openairdocs.org/sdr/ASAA2026011463825), Jan 14, 2026: SEAT TRACK. WORN. FUSELAGE INTERIOR, COCKPIT, PILOT AND FIRST OFFICERS INBD AFT SEAT TRACK LOCK PIN HOLES ARE OUT OF LIMITS. GROUNDED - YES. R & R THE SEAT TRACKS (2EA) AFT INBD 
- [SDR ASAA2026011463824](https://openairdocs.org/sdr/ASAA2026011463824), Jan 14, 2026: SEAT TRACK. WORN. FUSELAGE INTERIOR, COCKPIT, PILOT AND FIRST OFFICERS INBD AFT SEAT TRACK LOCK PIN HOLES ARE OUT OF LIMITS. GROUNDED - YES. R & R THE SEAT TRACKS (2EA) AFT INBD 
- [SDR ASAA2025033157312](https://openairdocs.org/sdr/ASAA2025033157312), Mar 31, 2025: SKIN. DAMAGED. EXTERIOR FUSELAGE, LIGHTNING STRIKE FOUND AT STA 500E BETWEEN S-5L AND S-6L. GROUNDED - YES. ACCOMPLISHED REPAIR PER ASA EA M9-53EA-28524 REV 00. THIS IS A CATE
- [SDR ASAA2023110846126](https://openairdocs.org/sdr/ASAA2023110846126), Nov 8, 2023: UNKNOWN. UNKNOWN. GE DIAGNOSTICS REPORTS THE #2 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P
- [SDR ASAA2023110846081](https://openairdocs.org/sdr/ASAA2023110846081), Nov 8, 2023: UNKNOWN. UNKNOWN. #2 ENGINE CONTROL LIGHT ILLUMINATED AFTER TOUCHDOWN. GROUNDED - YES. ENG 2 CONTROL STATUS MSG FOUND ACTIVE, PER IFIM TASK G73-20-00-810-858 FOUND 2 NON ACTIVE F
- [SDR ASAA2023101045542](https://openairdocs.org/sdr/ASAA2023101045542), Oct 10, 2023: MODULATING VALVE. OUT OF RANGE. REFER TC 31-005-00 SMT MESSAGE BLEED FAMV RVDT R WITH ASSOCIATED CORRELATED MAINTENANCE MESSAGE 36-12031 ENGINE -2 FAMV RVDT SIGNAL IS OUT OF RANGE. GROUNDED - 
- [SDR ASAA2023092445257](https://openairdocs.org/sdr/ASAA2023092445257), Sep 24, 2023: INSERT. DAMAGED. #2 ENGINE HIGH PRESSURE SHUTOFF VALVE LOCKOUT INOP (HEILCOIL DAMAGE). GROUNDED - YES. CW EA MAX-36EA-25932 MAX HIGH PRESSURE SHUTOFF VALVE MANUAL LOCK HELICOIL 
- [SDR ASAA2023092245267](https://openairdocs.org/sdr/ASAA2023092245267), Sep 22, 2023: UNKNOWN. UNKNOWN. F/C APPROACH SURVEY AUTOLAND NOT SUCCESSFUL. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023081044574](https://openairdocs.org/sdr/ASAA2023081044574), Aug 10, 2023: UNKNOWN. UNKNOWN. AFTER STARTING ENG NBR 1 WITH AIR CART NBR 1 ENG ANTI-ICE LIGHT ILLUMINATED. GROUNDED - YES. REF LOG PAGE 60841435 FOR CORRECTIVE ACTION. AFTER BLEED FAULT TROU
- [SDR ASAA2023081044571](https://openairdocs.org/sdr/ASAA2023081044571), Aug 10, 2023: UNKNOWN. UNKNOWN. AFTER CROSS BLEED START ENG NBR 2 NBR 1 BLEED LIGHT ILLUMINATED. AT THE GATE AFTER SHUTDOWN MAINT LIGHT ILLUMINATED. GROUNDED - YES. UPON OMF QUERY NOTIED HPSOV
- [SDR ASAA2023080944578](https://openairdocs.org/sdr/ASAA2023080944578), Aug 9, 2023: COMPUTER. FAULTY. GE DIAGNOSTICS REPORTS THE #2 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P
- [SDR ASAA2023080844496](https://openairdocs.org/sdr/ASAA2023080844496), Aug 8, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING T/C 31-005-00 FOUND FAULT CODE 36-00051 DUAL BLEED STATUS SIGNAL FROM ACAU-R DOES NOT AGREE WITH INTERNAL DUAL BLEED DETERMINATION LOGIC. GR
- [SDR ASAA2023080844483](https://openairdocs.org/sdr/ASAA2023080844483), Aug 8, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING T/C 35-005-00 FOUND #1 ENG FAULT CODE 36-12030 FAMV RVDT SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023080744484](https://openairdocs.org/sdr/ASAA2023080744484), Aug 7, 2023: UNKNOWN. UNKNOWN. WITH APU PRESSURIZING PACKS, DUCT PRESSURE FLUCTUATES FROM 10 TO 35 PSI. GROUNDED - YES. ACCOMPLISHED ENG NORMAL START REF AMM 71-00-00 WITH APU BLEED AIR WITH 
- [SDR ASAA2023080444422](https://openairdocs.org/sdr/ASAA2023080444422), Aug 4, 2023: UNKNOWN. UNKNOWN. AMBER MAINT LIGHT ON OVERHEAD PANEL DOING PREFLIGHT. GROUNDED - YES. FOUND BOTH EEC FOR ENGINE 1 AND 2 IN TEST MODE FOLLOWED IFIM G77-00-00810-941, AND TASK G73
- [SDR ASAA2023073144403](https://openairdocs.org/sdr/ASAA2023073144403), Jul 31, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING T/C 31-005-00, FOUND ENG 2 EEC C1 MESSAGE WITH ASSOCIATED MAINTENANCE MESSAGE 73-43303 AND 73-43293. " COMPRESSOR DISCHARGE PRESSURE (PS3) SENS
- [SDR ASAA2023071644125](https://openairdocs.org/sdr/ASAA2023071644125), Jul 16, 2023: UNKNOWN. UNKNOWN. GE DIAGNOSTICS REPORTS THE #2 ENGINE IS GENERATING ALERTS FOR PS3 OUT OF RANGE, PS3 PRESSURE DISAGREE FAULT, P3B OUT OF RANGE, P3B PRESSURE DISAGREE FAULT, OR P
- [SDR ASAA2023062643775](https://openairdocs.org/sdr/ASAA2023062643775), Jun 26, 2023: FILTER. FAULTY. #1 ENGINE IS ALERTING FOR OIL FILTER DELTA PRESSURE INCREASE AND APPROACHING OIL FILTER BYPASS INDICATION. (#PRI1) CNR 20230626065DO NOT EXTEND. GROUNDED - YES.
- [SDR ASAA2023062043659](https://openairdocs.org/sdr/ASAA2023062043659), Jun 20, 2023: GENERATOR. FAULTY. APU FAULT AND SHUTDOWN ON GROUND AFTER LANDING. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM TASK 49-40-00-810-818 STEPS A.-C.(5)(C) AND IFIM TASK 49-40-00-810-805 
- [SDR ASAA2023050843174](https://openairdocs.org/sdr/ASAA2023050843174), May 8, 2023: IGNITER. FAILED. ATTEMPTED TO START ENGINE #2. #2 ENGINE FAILED TO START RIGHT IGNITION WAS SELECTED. GROUNDED - YES. REPLACED BOTH RIGHT AND LEFT IGNITERS. REF B737-9 AMM 74-21
- [SDR ASAA2023050843170](https://openairdocs.org/sdr/ASAA2023050843170), May 8, 2023: UNKNOWN. UNKNOWN. AUX PITOT LIGHT ON OVERHEAD PANEL ILLUMINATED ON APPROACH. GROUNDED - YES. ACCOMPLISHED B737-9 IFIM 30-31-00-810-804 AUX PITOT LIGHT EXTINGUISHED. OPERATION AUX
- [SDR ASAA2023050243098](https://openairdocs.org/sdr/ASAA2023050243098), May 2, 2023: UNKNOWN. UNKNOWN. ON DEPARTURE CAPTAINS #2 OVERHEAT WINDOW LIGHT CAME ON. GROUNDED - YES. PERFORMED B737-9 IFIM TASK 30-41-00-810-830. CAPTAIN'S SIDE WINDOW OPS CK NORMAL. REF B7
- [SDR ASAA2023050243096](https://openairdocs.org/sdr/ASAA2023050243096), May 2, 2023: UNKNOWN. UNKNOWN. ON LANDING AUX PITOT LIGHT CAME ON. GROUNDED - YES. PERFORMED RESET PROCEDURE PER B737-9 IFIM TASK 30-31-00-810-804 OPS CHECKS NORMAL.
- [SDR ASAA2023032442571](https://openairdocs.org/sdr/ASAA2023032442571), Mar 24, 2023: FMC. FAULTY. TECH SERVICES REQUEST FOLLOW-UP TO HISTORY OF #1 (LEFT) FMC FAILED AND REBOOTING. REPLACE LEFT FMC. GROUNDED - YES. REMOVED AND REPLACED #1 (LEFT) FMC REF B737-
- [SDR ASAA2023032342569](https://openairdocs.org/sdr/ASAA2023032342569), Mar 23, 2023: UNKNOWN. UNKNOWN. AT CRUISE FL 340 FMC DID A RESTART. VTK ON CA ND AND BOTH FMC'S WENT TO MENU PAGE. A/T LIMIT LIGHT ILLUMINATED. FMC'S RETURNED TO NORMAL AFTER 15 SEC. GROUNDED 
- [SDR ASAA2023031642382](https://openairdocs.org/sdr/ASAA2023031642382), Mar 16, 2023: UNKNOWN. UNKNOWN. WHILE IN CRUISE @ FL340 VTK ON CAPTAINS ND ILLUMINATED FOLLOWED BY BOTH MCDU'S GOING BLANK (MENU) WITH A/T LIM ANNUNCIATION. CAPTAINS MAGENTA LINE ALSO DISAPPEA
- [SDR ASAA2023030142184](https://openairdocs.org/sdr/ASAA2023030142184), Mar 1, 2023: UNKNOWN. UNKNOWN. FO NAV DISPLAY MAGEHTA ROUTE DATA INCORRECT AND WOULD NOT DISPLAY FMC DATA. MCP DATA DISPLAYED ON FO NAV DISPLAY. CA NAV DISPLAY CORRECT. NO FMC WARNINGS OR CAU
- [SDR ASAA2023011041484](https://openairdocs.org/sdr/ASAA2023011041484), Jan 10, 2023: FMC. FAULTED. FMC DISAGREE ON GROUND, QRH PROCEDURE RESOLVED. OPS GOOD. GROUNDED - YES. PERFORMED B737-9 IFIM 34-61-00-810-918 AND FAULT MSG REMAINED EXTINGUISHED.
- [SDR ASAA2022121841193](https://openairdocs.org/sdr/ASAA2022121841193), Dec 18, 2022: OIL COOLER. CRACKED. FOUND CRACK ON #1 ENGINE SURFACE AIR OIL COOLER LH. GROUNDED - YES. REMOVED AND REPLACED #1 ENG SACOC REF B737-9 AMM 79-21-02.
- [SDR ASAA2022111740855](https://openairdocs.org/sdr/ASAA2022111740855), Nov 17, 2022: ANTI-ICE VALVE. NOT OPENED. LEFT WING ANTI ICE VALVE WOULD NOT OPEN WHEN TURNED ON LEFT VALVE CAUTION LIGHT ANT ANTI ICE VALVE MASTER CAUTION ILLUMINATED WHEN POSITION ON. GROUNDED - YES. 
- [SDR ASAA2022110140870](https://openairdocs.org/sdr/ASAA2022110140870), Nov 1, 2022: SENSOR. FAULTED. WHILE PERFORMING ASA T.C. #05-020-01, #1 ENG HAS SMT MTX MSG PRESENT "ENG 1 EEC C2", WITH CORRELATED MTX MSG 73-44632: FAN SPEED (N1) SENSOR LOW TOOTH SIGNAL IS
- [SDR ASAA2022102640525](https://openairdocs.org/sdr/ASAA2022102640525), Oct 26, 2022: ANTI-ICE VALVE. FAULTED. WHEN SELECTING WING ANTI-ICE, THE LEFT WING ANTI-ICE VALVE AMBER LIGHT REMAINED ILLUMINATED AND THERE WAS A 15 PSI DUCT SPLIT. GROUNDED - YES. REMOVED AND REPLA
- [SDR ASAA2022102440444](https://openairdocs.org/sdr/ASAA2022102440444), Oct 24, 2022: ANTI-ICE VALVE. FALSE INDICATION. DURING DESCENT WITH ANTI ICE ON, L VALVE AMBER LIGHT REMAINED ILLUMINATED. GROUNDED - YES. INTERROGATED FAULT HISTORY. FOUND NO FAULTS. PREFORMED B737-9 FIM TAS
- [SDR ASAA2022102340442](https://openairdocs.org/sdr/ASAA2022102340442), Oct 23, 2022: ANTI-ICE SYSTEM. FALSE INDICATION. ON DESCENT WITH A TAT OF -3 WING WING ANTI-ICE WAS TURNED ON AND THE L VALVE CAUTION LIGHT REMAINED ILLUMINATED. CHECKLIST DIRECTED TO TURN OFF WING ANTI-ICE AN
- [SDR ASAA2022101340320](https://openairdocs.org/sdr/ASAA2022101340320), Oct 13, 2022: WIRE. MISINSTALLED. EMERGENCY EXIT LIGHTS "NOT ARMED" INDICATOR INOP. GROUNDED - YES. RELAMPED NO HELP. REPLACED L-1 "NOT ARMED" LIGHT ASSEMBLY AND SOCKET, NO HELP. PULLING C/B 96-
- [SDR ASAA2022091339939](https://openairdocs.org/sdr/ASAA2022091339939), Sep 13, 2022: UNKNOWN. UNKNOWN. FMC DISAGREE ON BOTH NDS. GROUNDED - YES. FAULT RESET AND CLEARED REF B737-9 IFIM TASK 34-61-00-810-919.
- [SDR ASAA2022071339073](https://openairdocs.org/sdr/ASAA2022071339073), Jul 13, 2022: PRESSURE SWITCH. FAULTY. #1 ENG FILTER BYPASS LIGHT ON DEPARTURE. GROUNDED - YES. REMOVED AND REPLACED #1 ENG MAIN FUEL/OIL HEAT EXCHANGER DIFFERENTIAL PRESS SWITCH. REF B737-9 AMM 73-1
- [SDR ASAA2022071339056](https://openairdocs.org/sdr/ASAA2022071339056), Jul 13, 2022: HEAT EXCHANGER. FAULTY. TROUBLESHOOTING RECOMMENDATIONS FOR #1 ENGINE MAIN FUEL/OIL HEAT EXCHANGER FAULT. GROUNDED - YES. REMOVED AND REPLACED #1 ENG MAIN FUEL/OIL HEAT EXCHANGER DIFFE
- [SDR ASAA2022071239055](https://openairdocs.org/sdr/ASAA2022071239055), Jul 12, 2022: FMU. DAMAGED. DURING INSPECTION OF #1 ENGINE FUEL METERING UNIT FOUND DAMAGE DURING REMOVAL OF FMU SOLENOID JUST FWRD OF SB2 STRAIN REF ASA L/P 60220674 REQ P/N 8062-1155. GR

## 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/N977AK/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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