# N428AS: 2016 Boeing 737-990ER

- Status: Valid registration
- Airframe: [Boeing 737-990ER](https://openairdocs.org/model/boeing-737-990er) (registry code 13848CE, 222 seats)
- Engine: [CFM International CFM56-7B27E series](https://openairdocs.org/engine/cfm-international-cfm56-7b27e-series) (registry code 13078)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 36353
- Year built: 2016
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: March 8, 2016
- Certificate issued: March 14, 2016
- Expires: March 31, 2029
- Mode S code: A51968
- Registered owner: [Alaska Airlines Inc](https://openairdocs.org/faa-owner/ALASKA%20AIRLINES%20INC)
- Location: [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle)
- 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=428AS
- Page: https://openairdocs.org/aircraft/N428AS

From the FAA registry file of October 21, 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 CFM56-7B27E model are included.

## ADs that may apply (OpenAirDocs): 109 in force

### Matched by airframe (Boeing 737-990ER)

- [AD 2026-20-14](https://openairdocs.org/ad/2026-20-14): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 23, 2026
- [AD 2026-20-13](https://openairdocs.org/ad/2026-20-13): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 23, 2026
- [AD 2026-13-13](https://openairdocs.org/ad/2026-13-13): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. 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 2025-24-02](https://openairdocs.org/ad/2025-24-02): Landing gear · Boeing 737-700 Series, 737-800 Series, 737-900 Series and 1 more. Effective Dec 10, 2025
- [AD 2025-19-12](https://openairdocs.org/ad/2025-19-12): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 6, 2025
- [AD 2025-15-01](https://openairdocs.org/ad/2025-15-01): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 25, 2025
- [AD 2025-07-03](https://openairdocs.org/ad/2025-07-03): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 13, 2025
- [AD 2025-04-03](https://openairdocs.org/ad/2025-04-03): Exhaust · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [AD 2025-04-02](https://openairdocs.org/ad/2025-04-02): Powerplant · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [AD 2025-04-01](https://openairdocs.org/ad/2025-04-01): Powerplant · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2025
- [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 2024-16-10](https://openairdocs.org/ad/2024-16-10): Instruments · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 28, 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 2024-06-01](https://openairdocs.org/ad/2024-06-01): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 22, 2024
- [AD 2023-13-05](https://openairdocs.org/ad/2023-13-05): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 27, 2023
- [AD 2023-13-12](https://openairdocs.org/ad/2023-13-12): Oxygen · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 17 more. Effective Sep 5, 2023
- [AD 2023-12-13](https://openairdocs.org/ad/2023-12-13): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Jun 21, 2023
- [AD 2023-06-15](https://openairdocs.org/ad/2023-06-15): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-800 Series and 2 more. Effective May 30, 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 2023-04-17](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 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 2022-15-08](https://openairdocs.org/ad/2022-15-08): Information systems · Airbus A318-111, A318-112, A319-111 and 49 more. Effective Aug 12, 2022
- [AD 2022-11-13](https://openairdocs.org/ad/2022-11-13): Fuselage · Boeing 737-700 Series, 737-800 Series and 737-900ER Series. Effective Aug 3, 2022
- [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 2021-26-17](https://openairdocs.org/ad/2021-26-17): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Feb 15, 2022
- [AD 2021-18-17](https://openairdocs.org/ad/2021-18-17): Auto flight · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Dec 20, 2021
- [AD 2021-17-08](https://openairdocs.org/ad/2021-17-08): Fuselage · Boeing 737-800 Series and 737-900ER Series with STC ST04096CH. Effective Aug 17, 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 2021-11-24](https://openairdocs.org/ad/2021-11-24): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jul 20, 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 2021-07-17](https://openairdocs.org/ad/2021-07-17): Electrical power · Boeing 737-900ER Series. Effective May 25, 2021
- [AD 2021-02-14](https://openairdocs.org/ad/2021-02-14): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 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 2020-21-02](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 2020-18-13](https://openairdocs.org/ad/2020-18-13): Fuel · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 29, 2020
- [AD 2020-16-51](https://openairdocs.org/ad/2020-16-51): Pneumatic · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 6 more. Effective Aug 26, 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 2020-01-11](https://openairdocs.org/ad/2020-01-11): Air conditioning · Boeing 737-800 Series, 737-900 Series and 737-900ER Series. Effective Feb 21, 2020
- [AD 2019-19-10](https://openairdocs.org/ad/2019-19-10): Fuel · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 21 more. Effective Jan 16, 2020
- [AD 2019-24-15](https://openairdocs.org/ad/2019-24-15): Equipment/ furnishings · Boeing 737-900ER Series. Effective Jan 14, 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 2019-14-02](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 2019-11-06](https://openairdocs.org/ad/2019-11-06): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jul 17, 2019
- [AD 2019-11-03](https://openairdocs.org/ad/2019-11-03): Flight Controls · Boeing 737-700C Series, 737-800 Series and 737-900ER Series. Effective Jun 10, 2019
- [AD 2019-03-07](https://openairdocs.org/ad/2019-03-07): Wings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 29, 2019
- [AD 2019-01-03](https://openairdocs.org/ad/2019-01-03): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Mar 19, 2019
- [AD 2018-26-06](https://openairdocs.org/ad/2018-26-06): Doors · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Feb 1, 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

### Matched by engine (CFM International CFM56-7B27E series)

- [AD 2023-05-05](https://openairdocs.org/ad/2023-05-05): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 98 more. Effective May 10, 2023
- [AD 2018-26-01](https://openairdocs.org/ad/2018-26-01): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jan 10, 2019
- [AD 2018-09-51](https://openairdocs.org/ad/2018-09-51): Engine · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 7, 2018
- [AD 2015-18-04](https://openairdocs.org/ad/2015-18-04): 73-tooth gearshaft located in the engine accessory gearbox (AGB) · CFM International CFM56-3, CFM56-7B20, CFM56-7B20/2 and 47 more. Effective Oct 20, 2015
- [AD 2015-04-02](https://openairdocs.org/ad/2015-04-02): Dual engine thrust instability event · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Mar 31, 2015
- [AD 2009-11-02](https://openairdocs.org/ad/2009-11-02): HPC 4-9 spools · CFM International CFM56-2, CFM56-2A, CFM56-2B and 109 more. Effective Jun 23, 2009

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

- [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 2022-05-04](https://openairdocs.org/ad/2022-05-04) (historical): Navigation · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Feb 24, 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 2021-09-06](https://openairdocs.org/ad/2021-09-06) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Jun 8, 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 2019-25-17](https://openairdocs.org/ad/2019-25-17) (historical): Indicating/ recording system · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Dec 27, 2019
- [AD 2019-20-03](https://openairdocs.org/ad/2019-20-03) (historical): Information systems · Airbus A340-312, A340-313, A318-111 and 48 more. Effective Nov 19, 2019
- [AD 2019-22-10](https://openairdocs.org/ad/2019-22-10) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Nov 13, 2019
- [AD 2019-20-02](https://openairdocs.org/ad/2019-20-02) (historical): Fuselage · Boeing Airplane Company, Wichita Division 75 (Army PT-13), 737-600 Series, 737-700 Series and 4 more. Effective Oct 3, 2019
- [AD 2019-03-26](https://openairdocs.org/ad/2019-03-26) (historical): Equipment/furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 8, 2019
- [AD 2017-16-05](https://openairdocs.org/ad/2017-16-05) (historical): Wings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 22, 2017
- [AD 2017-14-13](https://openairdocs.org/ad/2017-14-13) (historical): Equipment and Furnishings · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 23, 2017
- [AD 2017-12-07](https://openairdocs.org/ad/2017-12-07) (historical): Air conditioning · Boeing 737-800 Series, 737-900 Series and 737-900ER Series. Effective Jul 20, 2017
- [AD 2016-18-01](https://openairdocs.org/ad/2016-18-01) (historical): Landing Gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 5, 2016
- [AD 2016-13-16](https://openairdocs.org/ad/2016-13-16) (historical): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 12, 2016
- [AD 2015-19-03](https://openairdocs.org/ad/2015-19-03) (historical): Fuel Selector/Shutoff Valve · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Oct 21, 2015
- [AD 2015-16-01](https://openairdocs.org/ad/2015-16-01) (historical): Air Conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Sep 15, 2015
- [AD 2013-26-08](https://openairdocs.org/ad/2013-26-08) (historical): Ice and Rain Protection · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Feb 10, 2014
- [AD 2013-18-09](https://openairdocs.org/ad/2013-18-09) (historical): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Oct 3, 2013
- [AD 2013-07-09](https://openairdocs.org/ad/2013-07-09) (historical): Oxygen · Boeing 737-700 Series, 737-700C Series, 737-800 Series and 4 more. Effective May 20, 2013
- [AD 2013-07-07](https://openairdocs.org/ad/2013-07-07) (historical): Stabilizers · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective May 20, 2013
- [AD 2012-19-11](https://openairdocs.org/ad/2012-19-11) (historical): Air Conditioning · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 9 more. Effective Nov 7, 2012
- [AD 2010-17-19](https://openairdocs.org/ad/2010-17-19) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 9, 2010
- [AD 2010-09-05](https://openairdocs.org/ad/2010-09-05) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 29, 2010
- [AD 2010-06-51](https://openairdocs.org/ad/2010-06-51) (historical): Flight controls · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Apr 7, 2010
- [AD 2009-21-10](https://openairdocs.org/ad/2009-21-10) (historical): Oxygen · Airbus A300, Model B4-605R, A300, Model B4-620, A300, Model B4-622 and 138 more. Effective Dec 17, 2009
- [AD 2007-18-52](https://openairdocs.org/ad/2007-18-52) (historical): Main slat track downstop assemblies · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Sep 26, 2007
- [AD 2007-18-51](https://openairdocs.org/ad/2007-18-51) (historical): Main slat track downstop assembly · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 3 more. Effective Aug 25, 2007
- [AD 2021-10-09](https://openairdocs.org/ad/2021-10-09) (historical): Turbine Engine Compressor Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 82 more. Effective Jun 24, 2021
- [AD 2018-18-01](https://openairdocs.org/ad/2018-18-01) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Oct 16, 2018
- [AD 2018-10-11](https://openairdocs.org/ad/2018-10-11) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective Jun 1, 2018
- [AD 2018-09-10](https://openairdocs.org/ad/2018-09-10) (historical): Turbine Engine Compressor Section · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 46 more. Effective May 14, 2018
- [AD 2013-26-01](https://openairdocs.org/ad/2013-26-01) (historical): Oil dynamic seal assembly · CFM International CFM56-3, CFM56-3B, CFM56-3C and 52 more. Effective Feb 3, 2014

All 142: https://openairdocs.org/aircraft/N428AS/ads.md

## Information bulletins (advisory) (15 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 AIR-21-12](https://openairdocs.org/saib/AIR-21-12): Thrust Reversers. Issued Aug 3, 2021
- [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
- [SAIB NM-18-18](https://openairdocs.org/saib/NM-18-18): Equipment/Furnishings - First Observer's Seat Cup Holder. Issued Jul 2, 2018
- [SAIB NM-17-17](https://openairdocs.org/saib/NM-17-17): Oxygen System. Issued Jun 19, 2017
- [SAIB NM-17-10](https://openairdocs.org/saib/NM-17-10): Maintenance Practices. Issued Apr 13, 2017
- [SAIB NM-16-21](https://openairdocs.org/saib/NM-16-21): Flight Controls. Issued Aug 8, 2016
- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014
- [SAIB NM-15-02](https://openairdocs.org/saib/NM-15-02): Cabin Equipment/Furnishings. Issued Nov 6, 2014
- [SAIB NM-12-11](https://openairdocs.org/saib/NM-12-11): Equipment/Furnishings: Buffet/Galleys. Issued Jan 10, 2012
- [SAIB NM-08-24](https://openairdocs.org/saib/NM-08-24): Water/Waste: Freezing Potable Water Lines. Issued May 22, 2008
- [SAIB NM-07-47](https://openairdocs.org/saib/NM-07-47): Boeing Model 737 Series Forward Airstairs. Issued Sep 6, 2007
- [SAIB NM-06-56](https://openairdocs.org/saib/NM-06-56): . Issued Jul 19, 2006
- [SAIB NE-08-17R3](https://openairdocs.org/saib/NE-08-17R3): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued May 28, 2014
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011

## NTSB investigations

None matched to N428AS.

## FAA accident and incident reports

None matched to N428AS.

## Service difficulty reports (250, newest 50)

As reported by operators and repair stations.

- [SDR ASAA2026101169225](https://openairdocs.org/sdr/ASAA2026101169225), Oct 11, 2026: DOOR. NO DISCREPANCY. L1 DOOR REQUIRES MORE FORCE THAN NORMAL TO OPEN AND CLOSE. GROUNDED - YES. ACCOMPLISHED FWD ENTRY DOOR CHECK, REF AMM 52-11-00, OPS CHECK GOOD CYCLED DOOR MULTI
- [SDR ASAA2026022664788](https://openairdocs.org/sdr/ASAA2026022664788), Feb 26, 2026: SHIELD. CORRODED. AFT PIT RH SIDE DOOR CUTOUT SHIELD PANEL HAS POSSIBLE CORROSION IN (5EA) SCREW HOLES AND UNDER NUTPLATES AT BETWEEN STA 787 TO 767 CIRCLES IN RED. GROUNDED - YE
- [SDR ASAA2026022564789](https://openairdocs.org/sdr/ASAA2026022564789), Feb 25, 2026: WEB. CORRODED. AFT CARGO DOOR CUTOUT, FORWARD LOWER CORNER ATTACH INTERCOSTAL CORRODED. BS788. GROUNDED - YES. REMOVED AND INSTALLED A NEW LOWER CORNER ATTACH INTERCOSTAL OF A
- [SDR ASAA2026022465016](https://openairdocs.org/sdr/ASAA2026022465016), Feb 24, 2026: FLOORBEAM. CORRODED. AFT WET AREA BS1016 RBL 30 FLOOR STRUCTURE CORRODED. A(K352). GROUNDED - YES. REMOVED CORROSION IAW SRM 53-70-51-1A-1. ORIG MAT .150, REMAINING MAT .070. MAT LO
- [SDR ASAA2026021964814](https://openairdocs.org/sdr/ASAA2026021964814), Feb 19, 2026: SUPPORT ANGLE. CORRODED. LAV SUPPORT ANGLE AT STA 917 LBL54 HAS CORROSION. GROUNDED - YES. REMOVED CORROSION-ORIGINAL THICKNESS .150, REMOVED .110, REMAINING IS .040 AND REQUIRES REPLAC
- [SDR ASAA2026021964792](https://openairdocs.org/sdr/ASAA2026021964792), Feb 19, 2026: TRANSITION PANEL. CORRODED. AFT CARGO LH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I TO FWD BULKHEAD. GROUNDED - YES. REMOVED CORROSION BETWEEN STA. 737I - FWD BULKHEAD. ORIGINAL 
- [SDR ASAA2026021964791](https://openairdocs.org/sdr/ASAA2026021964791), Feb 19, 2026: TRANSITION PANEL. CORRODED. AFT CARGO RH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I TO FWD BULKHEAD. GROUNDED - YES. REMOVED CORROSION BETWEEN 727I - FWD BULKHEAD. ORIG. THICKNES
- [SDR ASAA2026021964790](https://openairdocs.org/sdr/ASAA2026021964790), Feb 19, 2026: TRANSITION PANEL. CORRODED. AFT CARGO RH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I - 767. GROUNDED - YES. REMOVED CORROSION BETWEEN STA 727I-767 ORIG THICKNESS .040, MAT LOSS AT
- [SDR ASAA2026021964787](https://openairdocs.org/sdr/ASAA2026021964787), Feb 19, 2026: WEB. CORRODED. AFT CARGO DOOR CUTOUT SILL AREA HAS A FEW SPOTS OF CORROSION. GROUNDED - YES. REMOVED CORROSION . ORIGNAL THICKNESS .045 PER B737-900 SRM 53-60-15. MAT LOSS .00
- [SDR ASAA2026021964786](https://openairdocs.org/sdr/ASAA2026021964786), Feb 19, 2026: TRANSITION PANEL. CORRODED. AFT CARGO LH TRANSITION PANEL HAS CORROSION BETWEEN STATIONS 727I-847. GROUNDED - YES. REMOVED CORROSION BETWEEN STA 727I-847, ORIG THICKNESS .040, MAT LOSS AT 
- [SDR ASAA2026021964785](https://openairdocs.org/sdr/ASAA2026021964785), Feb 19, 2026: TRANSITION PANEL. CORRODED. FWD CARGO LH TRANSITION PANEL HAS A PUNCTURE BETWEEN STA. 500-500A. GROUNDED - YES. REMOVED CORROSION ORIGINAL THICKNESS .040. MAT LOSS 100% AT PUNCTURE FABBED 
- [SDR ASAA2026021964784](https://openairdocs.org/sdr/ASAA2026021964784), Feb 19, 2026: WEB. CORRODED. RH WEB STA 987-1006 RBL 26-46 HAS AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION IAW B737-900 SRM 51-10-02-0G-0. ORIGINAL THICKNESS .080 IAW BAC DWG #147
- [SDR ASAA2024092452818](https://openairdocs.org/sdr/ASAA2024092452818), Sep 24, 2024: APU. LEAKING. DESCENDING THROUGH 11,000', ALL 3 IN THE COCKPIT SMELLED SAME METALLIC SMELL AS PREVIOUSLY REPORTED. APU WAS NOT RUNNING MORE OR LESS AT IDLE POWER FROM TOD TO 
- [SDR ASAA2024090952402](https://openairdocs.org/sdr/ASAA2024090952402), Sep 9, 2024: CIRCUIT BREAKER. OPEN. P6-11 A9 CABIN EMER LIGHT CB FOUND OPEN. GROUNDED - YES. RESET C/B - EMER LTS TEST GOOD.
- [SDR ASAA2024082652106](https://openairdocs.org/sdr/ASAA2024082652106), Aug 26, 2024: POWER SUPPLY. INOPERATIVE. DURING EMERGENCY BATTERY PACK TASK CARD FOUND BATTERY PACK M1672 TO BE BAD. GROUNDED - YES. REMOVED AND REPALCED BATTERY PACK M1672 PER AMM 33-51-06 OPS CHECK O
- [SDR ASAA2024071551027](https://openairdocs.org/sdr/ASAA2024071551027), Jul 15, 2024: BATTERY PACK. FAULTY. M1670 EMERGENCY EXIT LIGHT BATTERY PACK & M2335 FOUND BAD AFFECTS L1507,L1210,L1506 AND L547,L6 AND L1515. GROUNDED - YES. REMOVED AND REPLACED M1670 AND M2335 
- [SDR ASAA2024060650097](https://openairdocs.org/sdr/ASAA2024060650097), Jun 6, 2024: LENS. DETACHED. MISSING P/N 702409-1008 ROW 16ABC EMERGENCY EXIT SIGN REF IPC 11-32-00-51 ITEM 350. GROUNDED - YES. EMERGENCY EXIT SIGN LENS FOUND AT LAX . REPLACED LENS AT ROW
- [SDR ASAA2023102845901](https://openairdocs.org/sdr/ASAA2023102845901), Oct 28, 2023: UNKNOWN. UNKNOWN. APU NO ELECTRIC. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023102445819](https://openairdocs.org/sdr/ASAA2023102445819), Oct 24, 2023: UNKNOWN. UNKNOWN. CA SIDE RADAR SHOWS GROUND CLUTTER IN AUTO MODE. MANUAL MODE WORKS FINE. FO SIDE WORKS CORRECTLY IN AUTO OR MANUAL MODE. GROUNDED - YES. (RESOLVED ON W/O: 19741
- [SDR ASAA2023101745727](https://openairdocs.org/sdr/ASAA2023101745727), Oct 17, 2023: PUMP. LEAKING. WHILE PERFORMING AN IDLE LEAK CHECK OF #1 ENGINE. LARGE AMOUNT OF FUEL DRAINED OUT OF FUEL PUMP DRAIN PAD. GROUNDED - YES. FUEL PUMP REMOVED PER T/C 8473002FUEL
- [SDR ASAA2023092245248](https://openairdocs.org/sdr/ASAA2023092245248), Sep 22, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING T/C 78273000 FOUND #1 ENG SHORT TIME FAULT 75-30451 THE VBV POSITION DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1970329 TASKCARD: N/R-00003 ) 
- [SDR ASAA2023091845201](https://openairdocs.org/sdr/ASAA2023091845201), Sep 18, 2023: UNKNOWN. UNKNOWN. FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT AT FL340. SUCCESSFUL CSS ACCOMPLISHED AFTER FAULT LIGHT EXTINGUISHED. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090945008](https://openairdocs.org/sdr/ASAA2023090945008), Sep 9, 2023: EEC. FAULTY. WHILE PERFORMING T/C 78273000 FOUND #1 ENG SHORT TIME FAULTS 75-10451 AND 75-20451 THE VBV POSITION DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1968547 TASKCARD
- [SDR ASAA2023090545032](https://openairdocs.org/sdr/ASAA2023090545032), Sep 5, 2023: UNKNOWN. UNKNOWN. REF LOG PAGE #60441010 APU FAULT LIGHT ILLUMINATED DURING CSS ATTEMPT. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023090244895](https://openairdocs.org/sdr/ASAA2023090244895), Sep 2, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING T/C 78273000 FOUND #1 ENGINE SHORT TIME FAULT MASG NBR 75-10451 THE VBV POSITION SIGNALS DISAGREE. GROUNDED - YES. (RESOLVED ON W/O: 1967781 TA
- [SDR ASAA2023090145045](https://openairdocs.org/sdr/ASAA2023090145045), Sep 1, 2023: INDICATOR. MALFUNCTIONED. #2 REFUEL VALVE REQUIRES MANUAL OPERATION. GROUNDED - YES. (RESOLVED ON W/O: 1967254 TASKCARD: N/R-00002 ) TROUBLE SHOT PER WDM 28-44-11 AND SSM28-44-11 FOUND #
- [SDR ASAA2023083044874](https://openairdocs.org/sdr/ASAA2023083044874), Aug 30, 2023: CONTROL PANEL. FAULTY. FAULT LIGHT ILLUMINATED DURING APU START ATTEMPT @ FL 350 SUCCESSFUL CSS ACCOMPLISHED DURING DESCENT, AFTER FAULT LIGHT EXTINGUISHED, @ FL 310. GROUNDED - YES. 
- [SDR ASAA2023082444763](https://openairdocs.org/sdr/ASAA2023082444763), Aug 24, 2023: BATTERY. INOPERATIVE. THE FOLLOWING EMER LIGHTS ARE INOP IN PASSENGER CABIN, R2 DOOR IN FRONT OF G4 GALLEY, LH OVERWING OVERDOOR FWD & AFT, PH BIN AT ROW 9DEF & 13 DEF, OH BIN AT ROW
- [SDR ASAA2023082144760](https://openairdocs.org/sdr/ASAA2023082144760), Aug 21, 2023: BATTERY. INOPERATIVE. FWD CLOSEOUT PANEL EXIT LIGHT IS INOP. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE EMERG. LIGHTS BATTERY PACK OPS CHECKS GOOD IAW B737-900 AMM 33-51-06-00
- [SDR ASAA2023080544442](https://openairdocs.org/sdr/ASAA2023080544442), Aug 5, 2023: UNKNOWN. UNKNOWN. LEFT FMC FAIL. GROUNDED - YES. PERFORMED FMC CB RESET PER FIM 34-61 TASK 836 OPS CHECK NML.
- [SDR ASAA2023071944124](https://openairdocs.org/sdr/ASAA2023071944124), Jul 19, 2023: UNKNOWN. UNKNOWN. WHILE ACCOMPLISHING TASK CARD # 78273000 FOUND SHORT TIME FAULT CODE # 75-30451 "THE VBV POSITION SIGNALS DISAGREE" ON ENG #1. GROUNDED - YES. (RESOLVED ON W/O:
- [SDR ASAA2023071244016](https://openairdocs.org/sdr/ASAA2023071244016), Jul 12, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING TC 78273000, FOUND MSG 73-11162 LONG TIME FAULT ON ENG #2. GROUNDED - YES. ON DEFERRAL.
- [SDR ASAA2023070943943](https://openairdocs.org/sdr/ASAA2023070943943), Jul 9, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING T/C 78273000 FOUND LONGTIME FAULT ON #2 ENGINE MTX MSG 73-31162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON 
- [SDR ASAA2023062643739](https://openairdocs.org/sdr/ASAA2023062643739), Jun 26, 2023: BATTERY PACK. INOPERATIVE. EMERGENCY AISLE LIGHT AT SEAT ROW 27 LEFT INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY M2626 REF AMM 33-51-06. OPS CHECK GOOD.
- [SDR ASAA2023062343709](https://openairdocs.org/sdr/ASAA2023062343709), Jun 23, 2023: LAMP. INOPERATIVE. R/H OVERWING AFT EMERGENCY LIGHT INOP. GROUNDED - YES. RELAMPED R/H AFT OVERWING EMERGENCY LIGHT, OPS CHECK GOOD REF AMM 33-51-04.
- [SDR ASAA2023061443687](https://openairdocs.org/sdr/ASAA2023061443687), Jun 14, 2023: UNKNOWN. UNKNOWN. WHILE PREFORMING T/C 78273000. FOUND LONGTIME FAULT ON #2 ENGINE MTX MSG 73-21162 THE MECHANICAL OVERSPEED PROTECTION SIGNAL IS OUT OF RANGE. GROUNDED - YES. ON
- [SDR ASAA2023052743371](https://openairdocs.org/sdr/ASAA2023052743371), May 27, 2023: CHARGER. INOPERATIVE. BATTERY DISCHARGE LIGHT ILLUMINATED. GROUNDED - YES. M5 BAT CHARGER STATUS LIGHTS OFF. CONFIRMED CORRECT VOLTAGE @ D42 PINS 10, 7, AND 4. P92 C809 CYCLE NO HELP
- [SDR ASAA2023052643380](https://openairdocs.org/sdr/ASAA2023052643380), May 26, 2023: UNKNOWN. UNKNOWN. FMC PROMPTS NOT AVAILABLE VTK ON CA SIDE. GROUNDED - YES. RESET 2 BREAKERS IAW B737-900 FIM 34-61 TASK 807.
- [SDR ASAA2023042242964](https://openairdocs.org/sdr/ASAA2023042242964), Apr 22, 2023: UNKNOWN. UNKNOWN. ENG ANTI-ICE #2 COWL VALVE OPEN LIGHT (BLUE) STAYS ON WITH SWITCH OFF, WITH CORRESPONDING AMBER TAI ON THE ENGINE DISPLAY. GROUNDED - YES. OPERATED #2 ENG COWL 
- [SDR ASAA2023040242742](https://openairdocs.org/sdr/ASAA2023040242742), Apr 2, 2023: EXCITER. FAILED. ENG #1 NO LIGHT OFF DURING START. GROUNDED - YES. REMOVED AND REPLACED #1 ENG L/H EXITER AND IGNITOR, AUDIBLE TEST FAILED REF AMM'S 74-11-01 + AMM 74-21-02, SUS
- [SDR ASAA2023032542558](https://openairdocs.org/sdr/ASAA2023032542558), Mar 25, 2023: ACTUATOR. FAULTY. AUTOPILOT A WILL NOT STAY ENGAGED. USED AUTOPILOT B. GROUNDED - YES. B737-900 FIM 22-11 TASK 856 PREVIOUS FLT LEG LOGGED FAULT MSG22-11189. FIM 22-12 TASK 813 D
- [SDR ASAA2023031342315](https://openairdocs.org/sdr/ASAA2023031342315), Mar 13, 2023: UNKNOWN. UNKNOWN. AUTOPILOT A WILL NOT REMAIN ENGAGED. GROUNDED - YES. PERFORMED DFCS BITE REF B737-900 FIM 22-11 TASK 801. UNDER FAULT HISTORY LEG 1 CH. A FOUND ENGAGE ATTEMPT F
- [SDR ASAA2023031142303](https://openairdocs.org/sdr/ASAA2023031142303), Mar 11, 2023: UNKNOWN. UNKNOWN. COWL VALVE OPEN WHEN OFF DISAGREEMENT WITH THE SWITCH POSITION NOTICED ON ROLLOUT. GROUNDED - YES. IAW B737-900 FIM 30-21 TASK 804 PRSOV MANUAL OVERRIDE TO OPEN
- [SDR ASAA2023022242043](https://openairdocs.org/sdr/ASAA2023022242043), Feb 22, 2023: IGNITER. INOPERATIVE. 3 ATTEMPTS #1 ENGINE HUNG START, GOOD N1 AND N2 ROTATION, GOOD FUEL FLOW, NO IGN RISE. GROUNDED - YES. REMOVED AND REPLACED L IGNITER PLUG #1 ENG OPS CHECK GOOD
- [SDR ASAA2023021941996](https://openairdocs.org/sdr/ASAA2023021941996), Feb 19, 2023: UNKNOWN. UNKNOWN. SINGLE L FMC FAIL. VTK AND AMBER "MAP" ON CA SIDE ND INFLIGHT. FMC BOTH ON RIGHT FOR SINGLE FMC OPS FOR REMAINDER OF FLIGHT. GROUNDED - YES. PERFORMED B737-900 
- [SDR ASAA2023021642002](https://openairdocs.org/sdr/ASAA2023021642002), Feb 16, 2023: EEC. FAULTY. NO LIGHT OFF ON #1 ENGINE USING IGN R. GROUNDED - YES. REMOVED & REPLACED #1 ENG EEC, CLOSED 4 C/B, PERFORMED ALL INSTALLATION TESTS PASSED REF B737-900 AMM 73-
- [SDR ASAA2023021041929](https://openairdocs.org/sdr/ASAA2023021041929), Feb 10, 2023: SPINNER. DAMAGED. REF ASA T/C 78472000 ENG INLET & FAN DETAILED INSP FOUND #2 ENG S/N 854343 FRONT SPINNER CONE WHITE ANTI EROSION PAINT MISSING BY 50%. GROUNDED - YES. REMOVED &
- [SDR ASAA2023020841889](https://openairdocs.org/sdr/ASAA2023020841889), Feb 8, 2023: ACTUATOR. FAULTY. LEFT PACK LIGHT ILLUMINATED ON TAXI OUT, EXTINGUISHES ON MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED RAM AIR INLET ACTUATOR REF B737-900 AMM 21-5
- [SDR ASAA2023020741867](https://openairdocs.org/sdr/ASAA2023020741867), Feb 7, 2023: UNKNOWN. UNKNOWN. ON SHUTDOWN LEFT "RAM DOOR FULL OPEN" LIGHT IS NOT ILLUMINATED ON POST FLIGHT WALK AROUND LEFT RAM DOOR IN CLOSED. GROUNDED - YES. PERFORMED LH PACK TEMP CONTRO
- [SDR ASAA2023013041739](https://openairdocs.org/sdr/ASAA2023013041739), Jan 30, 2023: UNKNOWN. UNKNOWN. UNABLE TO SELECT F/D 1 AS MASTER OR ENGAGE CMD A IN FLIGHT.SEEMS TO OPERATE NOORMALLY ON GROUND.F/D 1 WAS SELECTED PRIOR TO TAKEOFF, BUT SWITCHED TO F/D 2 AS MA

All 250: https://openairdocs.org/aircraft/N428AS/reports.md

## Related

- Other Boeing 737-990ER aircraft: https://openairdocs.org/model/boeing-737-990er/aircraft.md
- STCs for the Boeing 737-990ER: https://openairdocs.org/model/boeing-737-990er/stcs.md
- The CFM International CFM56-7B27E series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b27e-series.md

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