# N448AS: 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: 36356
- Year built: 2016
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: March 30, 2016
- Certificate issued: April 1, 2016
- Expires: April 30, 2029
- Mode S code: A56866
- 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=448AS
- Page: https://openairdocs.org/aircraft/N448AS

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 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/N448AS/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 N448AS.

## FAA accident and incident reports

None matched to N448AS.

## Reports on N448AS not matched to an aircraft (1)

They name N448AS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Incident 20060901023559I](https://openairdocs.org/incident/20060901023559I), Sep 1, 2006: Bombdr BD1001A10 (N448AS), Seattle, WA, Minor damage. (-23) While attempting to park the aircraft between two hangars, the aircraft struck a parked unoccupied vehicle with its wing tip. Neither pilot has been or…

## Service difficulty reports (156, newest 50)

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 ASAA2026092368887](https://openairdocs.org/sdr/ASAA2026092368887), Sep 23, 2026: BATTERY PACK. INOPERATIVE. WHILE WORKING T/C 78233001, M1673 FAILED TEST. GROUNDED - YES. REPLACED BATTERY PACK M1673 REF AMM 33-51-06-960-805. OPS CHECK GOOD.
- [SDR ASAA2026031664965](https://openairdocs.org/sdr/ASAA2026031664965), Mar 16, 2026: NOT REPORTED. FAULTED. RAMP REPORTED L1 DOOR NOT ABLE TO OPEN. GROUNDED - YES. FOUND AIRCRAFT SLIGHTLY PRESSURIZED, SHUT DOWN APU, BLED CABIN PRESSURE OFF, L1 DOOR OPEN AS NORMAL IAW 
- [SDR ASAA2026011563770](https://openairdocs.org/sdr/ASAA2026011563770), Jan 15, 2026: LANDING GEAR. FAULTED. GEAR WOULD NOT RETRACT AFTER TAKEOFF NORMAL LANDING BELOW MAX LANDING WEIGHT. GROUNDED - YES. PERFROMED PSEU BITE AND FAULT CHK, NO FAULTS FOUND. PERFORMED LAND
- [SDR ASAA2025082660849](https://openairdocs.org/sdr/ASAA2025082660849), Aug 26, 2025: WEB. CORRODED. FWD CARGO DOOR SCUFF PLATE SUB-STRUCTURE HAS MULTIPLE AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD PIT CARGO DOOR LOWER WEB IAW SRM 53-30-15-1
- [SDR ASAA2025082560923](https://openairdocs.org/sdr/ASAA2025082560923), Aug 25, 2025: SUPPORT. CORRODED. FWD CARGO COMPARTMENT AFT LEFT BULKHEAD SUPPORT STRUCTURE HAS CORROSION. GROUNDED - YES. REMOVED CORROSION FROM FWD PIT AFT L/H SIDE BULKHEAD SUPPORT IAW B737-9
- [SDR ASAA2025082060624](https://openairdocs.org/sdr/ASAA2025082060624), Aug 20, 2025: FLOORBEAM. CORRODED. CABIN FWD FLOOR WET AREA APPROX.STA.297 RBL 12, FLOORBEAM UPPER SURFACE CORRODED AROUND FASTENER HOLE (1EA). GROUNDED - YES. REMOVED CORROSION, ORIG THICK .080"
- [SDR ASAA2025020355696](https://openairdocs.org/sdr/ASAA2025020355696), Feb 3, 2025: BATTERY. INOPERATIVE. REMOVE AND REPLACE 3 BATTERY PACKS FOR EMERGENCY LIGHTING. GROUNDED - YES. REMOVE AND REPLACE 3 BATTERY PACKS FOR EMERGENCY LIGHTING. (S/N 414543, 414591, 41454
- [SDR ASAA2024082852166](https://openairdocs.org/sdr/ASAA2024082852166), Aug 28, 2024: BATTERY PACK. NO TEST. WHILE PERFORMING T/C 78233008, FOUND LEFT AFT OVERWING EXIT EMERGENCY BATTERY PACK INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY BATTERY PACK AT L, 7-8 W
- [SDR ASAA2024061950444](https://openairdocs.org/sdr/ASAA2024061950444), Jun 19, 2024: DOOR. ABNORMAL. LANDING GEAR FAILED TO RETRACT AFTER TAKE-OFF FOUND MAIN GEAR ACCESS PANEL DOOR NOT FULLY CLOSED MADE OVERWEIGHT LANDING 165.0LBSNO HARD LANDING. GROUNDED - YES
- [SDR ASAA2023121846838](https://openairdocs.org/sdr/ASAA2023121846838), Dec 18, 2023: UNKNOWN. UNKNOWN. CABIN EMERGENCY LIGHT C/B POPPED. GROUNDED - YES. RESET CB REF AMM 20-60-01-860-801 CYCLED EMERGENCY LIGHTS OPS CHECK OK.
- [SDR ASAA2023101145565](https://openairdocs.org/sdr/ASAA2023101145565), Oct 11, 2023: UNKNOWN. UNKNOWN. WHILE PERFORMING TC 78222000 - SYS. FAILS AILERON TEST. BITE 60-31. MSG 1111340 CAME UP SEVERL TIMES. PER FIM AN FFC SWAP IS REQ. FOR T/S. RMVD AND INSATLLED NE
- [SDR ASAA2023100145393](https://openairdocs.org/sdr/ASAA2023100145393), Oct 1, 2023: UNKNOWN. UNKNOWN. FMC DISAGREE FMC MESSAGE APPEARED ON BOTH FMC SCRATCHPADS AND MAP DISPLAYS AFTER LANDING. MESSAGE DISAPPEARED WITH SHUTDOWN CHECK. GROUNDED - YES. PERFORMED FIM
- [SDR ASAA2023092645338](https://openairdocs.org/sdr/ASAA2023092645338), Sep 26, 2023: STARTER. FAULTY. #2 ENG WOULD NOT START- N2 WOULD NOT GET ABOVE 15%. CROSSBLEED START ALSO UNSUCCESSFUL- N2 LESS THAN 15%. GROUNDED - YES. REPLACED #2 ENG STARTER REF AMM 80-11-
- [SDR ASAA2023092145238](https://openairdocs.org/sdr/ASAA2023092145238), Sep 21, 2023: BATTERY. INOPERATIVE. MULTIPLE EMERGENCY LIGHTS OUT. GROUNDED - YES. REMOVED AND INSTALLED 4 EA BATTERY PACKS AT R1 SNF R2 AND LH ROW 7 AND LH ROW 26 OPS CK GOOD IAW B737-900 AMM 33-
- [SDR ASAA2023082644790](https://openairdocs.org/sdr/ASAA2023082644790), Aug 26, 2023: UNKNOWN. UNKNOWN. FO R2 WINDOW OVERHEAT ON CLIMBOUT. GROUNDED - YES. INFO ONLY NOTED.
- [SDR ASAA2023082444779](https://openairdocs.org/sdr/ASAA2023082444779), Aug 24, 2023: UNKNOWN. UNKNOWN. RIGHT SIDE WINDOW HEAT OVERHEAT LIGHT ILLUMINATED ENROUTE AT FL 350.SYS WAS RESET IAW AS NORMAL CHECKLIST PROCEDURE WITH NO FURTHER INCIDENCE. GROUNDED - YES. R
- [SDR ASAA2023082344811](https://openairdocs.org/sdr/ASAA2023082344811), Aug 23, 2023: WINDOW. FAULTY. TECH SERVICES REQUEST TO REPLACE R-2 SLIDING WINDOW ASSY DUE TO NUMEROUS REPORTS OF SIDE WINDOW OVERHEAT LIGHT ILLUMINATING----(#PRI2)----. GROUNDED - YES. REMO
- [SDR ASAA2023082344752](https://openairdocs.org/sdr/ASAA2023082344752), Aug 23, 2023: UNKNOWN. UNKNOWN. ON CLIMB OUT THROUGH 30,000' R2 WINDOW OVER HEAT ILLUMINATED RAN QRH 3.6 WINDOW OVERHEAT LIGHT EXTINGUISHED. GROUNDED - YES. ACCOMP WINDOW HEAT TEST OVHT/PWR TE
- [SDR ASAA2023082344724](https://openairdocs.org/sdr/ASAA2023082344724), Aug 23, 2023: MODULE. FAULTY. RIGHT ALPHA VANE LIGHT AFTER ENGINE START. GROUNDED - YES. REMOVED AND REPLACED OVERHEAD P5 PROBE/WINDOW HEAT PANEL IAW B737-900 AMM TASK 30-41-41-000/400-801. 
- [SDR ASAA2023082244735](https://openairdocs.org/sdr/ASAA2023082244735), Aug 22, 2023: UNKNOWN. UNKNOWN. ON CLIMBOUT, R2 WINDOW OVERHEAT ILLUMINATED GROUNDED - YES. RAN QRH 3.6 WINDOW OVERHEAT. LIGHT EXTINGUISHED.
- [SDR ASAA2023081844675](https://openairdocs.org/sdr/ASAA2023081844675), Aug 18, 2023: AOA. FAULTY. RIGHT ALPHA VANE LIGHT AFTER ENGINE START. GROUNDED - YES. REMOVED AND REPLACED RAOA PULLED AND COLLARD C/B'S IN REF WITH AMM 34-21-05-400-801. CLOSED ALL C/B"S
- [SDR ASAA2023081744662](https://openairdocs.org/sdr/ASAA2023081744662), Aug 17, 2023: PACKING. DEGRADED. #1 ENGINE OIL FILLER CAP PACKING NEEDS REPLACEMENT. GROUNDED - YES. REMOVED & REPLACED #1 ENGINE OIL FILLER CAP PACKING WITH NEW. REF AMM 79-11-01.
- [SDR ASAA2023081544643](https://openairdocs.org/sdr/ASAA2023081544643), Aug 15, 2023: AOA. MALFUNCTIONED. AFTER ENGINE START R ALPHA VANE CAUTION ILLUMINATED. GROUNDED - YES. REMOVED AND REPLACED R/H AOA VANE REF AMM 34-21-05/401. 4 C/B'S OPENED, TAGGED, AND RESET. 
- [SDR ASAA2023080144369](https://openairdocs.org/sdr/ASAA2023080144369), Aug 1, 2023: UNKNOWN. UNKNOWN. ON DESCENT AT APPROXIMATELY 8,000', R2 WINDOW OVERHEAT LIGHT ILLUMINATED, AFTER THROUGH MOISTURE. GROUNDED - YES. FOLLOWED QRH, LIGHT NEVER RE-ILLUMOINATED.
- [SDR ASAA2023052643374](https://openairdocs.org/sdr/ASAA2023052643374), May 26, 2023: UNKNOWN. UNKNOWN. RIGHT SIDE WINDOW HEAT, OVERHEAT CAUTION. GROUNDED - YES. RIGHT SIDE WINDOW, PRIMARY TEMP SENSOR HAS OPEN CIRCUIT. SWAPPED FROM PRIMARY TO SECONDARY WINDOW HEAT
- [SDR ASAA2023052143296](https://openairdocs.org/sdr/ASAA2023052143296), May 21, 2023: TRANSCEIVER. INOPERATIVE. TURNED RADAR ON PRIOR TO TAKEOFF. WXR FAIL AND PW FAIL #1 AND #2 NAV DISPLAYS. GROUNDED - YES. REMOVED AND REPLACED WEATHER RADAR RECEIVER/TRANSMITTER IN REFERE
- [SDR ASAA2023050643138](https://openairdocs.org/sdr/ASAA2023050643138), May 6, 2023: COFFEEMAKER. FUMES. DURING CRUISE, "A" FA REPORTED TRANSIENT FUMES (LEVEL 1 IN F.O.M.) WHEN FORWARD GALLEY UPPER COFFEE MAKER WAS TURNED ON. COFFEE MAKER WAS TURNED OFF AND FUMES D
- [SDR ASAA2023041042835](https://openairdocs.org/sdr/ASAA2023041042835), Apr 10, 2023: MODULATING VALVE. FAULTED. RIGHT PACK LIGHT ILLUMINATES DURING MASTER CAUTION RECALL AND RESETS WHEN MASTER CAUTION PRESSED. GROUNDED - YES. REMOVED AND REPLACED NUMBER 2 TEMPERATURE CONT
- [SDR ASAA2023031442365](https://openairdocs.org/sdr/ASAA2023031442365), Mar 14, 2023: TRANSCEIVER. FAILED. HF #1 FAIL-FAIL INDICATION. GROUNDED - YES. REMOVED AND REPLACED #1 HF TXCVR REF B737-900 AMM 23-11-21.
- [SDR ASAA2023031342321](https://openairdocs.org/sdr/ASAA2023031342321), Mar 13, 2023: LAMP. INOPERATIVE. L2 DOOR SLIDE EMERGENCY LIGHT BULB OUT. GROUNDED - YES. RELAMPED & TESTED L2 DOOR SLIDE LIGHT BULB REF B737-900 AMM 33-51-04. OPS TEST GOOD.
- [SDR ASAA2023030142123](https://openairdocs.org/sdr/ASAA2023030142123), Mar 1, 2023: CONTROLLER. FAULTY. RIGHT PACK LIGHT ILLUMINATES ON MASTER CAUTION RECALL LIGHT RESETS WITH MC RECALL. GROUNDED - YES. REMOVED AND REPLACED RIGHT PACK TEMP CONTROLLER REF B737-900 
- [SDR ASAA2023020641848](https://openairdocs.org/sdr/ASAA2023020641848), Feb 6, 2023: NOT REPORTED. NOT REPORTED. AFTER LANDING FMC INTERMITTENTLY CUT OUT ON CAPTAIN'S SIDE. GROUNDED - YES. PER B737-900 FIM 34-61 TASK 801 + 807 FMCL KEEPS CYCLING. BITE INFLIGHT FAULT SHOWS 
- [SDR ASAA2023013141744](https://openairdocs.org/sdr/ASAA2023013141744), Jan 31, 2023: UNKNOWN. UNKNOWN. ON DESCENT FO FMC DISPLAY BLANK AND ALL ANNUNCIATOR LIGHTS ILLUMINATED. GROUNDED - YES. AFTER 1 MIN, RESET ITSELF. OPS NORMAL REMAINDER OF FLIGHT.
- [SDR ASAA2023013011681](https://openairdocs.org/sdr/ASAA2023013011681), Jan 21, 2023: PRESSURE SWITCH. INOPERATIVE. FOLLOW-UP TO HISTORY OF #2 TANK AFT PUMP LOW PRESSURE LIGHT INOP----(#PRI2)----ETOPS SIGNIFICANT SYSTEM----. GROUNDED - YES. (RESOLVED ON W/O: 1939840 TASKCARD:
- [SDR ASAA2023011641782](https://openairdocs.org/sdr/ASAA2023011641782), Jan 16, 2023: BATTERY PACK. FAILED. AFT RH CABIN EMERG. LIGHTS DO NOT ILLUMINATE IN THE CEILING. GROUNDED - YES. REMOVED & REPLACED BATT. M2627 REF B737-900 AMM 33-51-06.
- [SDR ASAA2023011951559](https://openairdocs.org/sdr/ASAA2023011951559), Jan 15, 2023: MODULATING VALVE. FAULTED. RIGHT PACK LIGHT ILLUMINATED IN TAXI. EXTINGUISHES WITH MASTER RESET. GROUNDED - YES. REMOVED & REPLACED R. PACK TEMP CONTROL VALVE, REF B737-900 AMM 21-51-10.
- [SDR ASAA2022111940881](https://openairdocs.org/sdr/ASAA2022111940881), Nov 19, 2022: WARNING MESSAGE. FALSE ACTIVATION. PILOTS FWD WINDOW HEAT OVERHEAT LIGHT ILLUMINATE. GROUNDED - YES. ACCOMPLISHED B737-900 FIM 30-41-801 WHCU BITE PROCEDURE NO FAULTS FOUND ON BITE PROCEDURE L FW
- [SDR ASAA2022090639828](https://openairdocs.org/sdr/ASAA2022090639828), Sep 6, 2022: CONTROL PANEL. FAULTY. CARGO CPT FIRE DETECT FAULT LIGHT & FWD WOULD NOT ILLUMINATE. GROUNDED - YES. REMOVED AND REPLACED CARGO FIRE CONTROL PANEL. REF B737-900 AMM 26-00-02/401.
- [SDR ASAA2022090339789](https://openairdocs.org/sdr/ASAA2022090339789), Sep 3, 2022: SPACER. DEBONDED. WHILE ACCOMPLISHING OF T/C #78472010, FAN BLADE LUBRICATION, FOUND #17 FAN BLADE SPACER W/ DISBONDED ELASTOMER. REQUIRES REPLACEMENT. GROUNDED - YES. DURING ACC
- [SDR ASAA2022082339611](https://openairdocs.org/sdr/ASAA2022082339611), Aug 23, 2022: SPACER. DEBONDED. WHILE ACCOMPLISHING ASA T/C #78472010, FAN BLADE LUBRICATION, FOUND #4 SPACER W/ DISBONDED ELASTOMER. REQUIRES REPLACEMENT. GROUNDED - YES. REPLACED #4 SPACER R
- [SDR ASAA2022081939600](https://openairdocs.org/sdr/ASAA2022081939600), Aug 19, 2022: MODULATING VALVE. FAILED. RIGHT HAND PACK LIGHT ILLUMINATES ON RECALL AND RESETS WITH MASTER CAUTION RESET. GROUNDED - YES. REMOVED AND REPLACED RH TRIM MODULATING VALVE REF B737-900 AMM
- [SDR ASAA2022080839464](https://openairdocs.org/sdr/ASAA2022080839464), Aug 8, 2022: CONTROL VALVE. DIRTY. RH PACK LIGHT ILLUMINATED ON MASTER CAUTION RECALL. RESET WITH MC RESET. GROUNDED - YES. ACCOMPLISHED BITE ON BOTH TEMP CONTROLLERS REF B737-900 FIM 21-61 TASK 
- [SDR ASAA2022072539252](https://openairdocs.org/sdr/ASAA2022072539252), Jul 25, 2022: UNKNOWN. UNKNOWN. FWD CARGO FIRE LIGHT DID NOT TEST PROPERLY FIRST THREE ATTEMPTS. GROUNDED - YES. PERFORMED B737-900 FIM 26-23 TASK 801 FWD (M2236) CEU BITE TEST PASSED W/ NO FA
- [SDR ASAA2022072439166](https://openairdocs.org/sdr/ASAA2022072439166), Jul 24, 2022: UNKNOWN. FAULTY. #2 HF RADIO DOES NOT TRANSMIT. RECEIVES NORMALLY. GROUNDED - YES. REPLACED #2 HF TRANSCEIVER REF B737-900 AMM 23-11-21. OPS CHECKS GOOD.
- [SDR ASAA2022053138547](https://openairdocs.org/sdr/ASAA2022053138547), May 31, 2022: START VALVE. FAULTY. ENG 1 START VALVE OPEN LIGHT REMAINED ON DURING ENG START. RAN QRH PROCEDURE + SHUT DOWN. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE START VALVE REF B737-90
- [SDR ASAA2022050138190](https://openairdocs.org/sdr/ASAA2022050138190), May 1, 2022: VALVE. FAILED. CABIN CLIMB RATE ON PRESSURIZATION FLUCTUATED UP/DOWN ENTIRE FLIGHT. CABIN RATE +/- 100 FPM UP TO +300 FPM WITH ADDITION OF THRUST AND -500 FPM WITH THRUST REDU
- [SDR ASAA2022033037855](https://openairdocs.org/sdr/ASAA2022033037855), Mar 30, 2022: FIRE DETECTOR. INOPERATIVE. #1 ENGINE FIRE DETECTION LOOP A IS INOPERATIVE. ("A" LOOP DOESN'T TEST AND FAULT LIGHT ILLUMINATED). GROUNDED - YES. REF TSR711760, 2 DECTECTOR HARNESS & FAN LO
- [SDR ASAA2022031637701](https://openairdocs.org/sdr/ASAA2022031637701), Mar 16, 2022: CONTROL VALVE. FAULTY. SAME ISSUE AS LO 60259389 +/-3 PSI DUCT PRESSURE OSCILLATION AND CABIN RATIO OSCILLATION +/-3. GROUNDED - YES. C/W PACK FLOW TEMPERATURE CONTROLLER BITE REF B73
- [SDR ASAA2022031437684](https://openairdocs.org/sdr/ASAA2022031437684), Mar 14, 2022: UNKNOWN. UNKNOWN. HF #2 SHOWS FAIL / FAIL. GROUNDED - YES. CYCLED C/B, SYS RESTORED & OPS CKS NML PER B737-900 AMM 23-11-00 AND COMM CK. GND VERIFICATION SUCCESSFUL.
- [SDR ASAA2022022437542](https://openairdocs.org/sdr/ASAA2022022437542), Feb 24, 2022: UNKNOWN. UNKNOWN. R2 WINDOW HEAT OVERHEAT LIGHT ILLUMINATED AFTER PUSHBACK. GROUNDED - YES. PERFORMED WHCU BITE TEST NO FAULT NOTED B737-900 FIM 30-41 TASK 801, WINDOW HEAT SYSTE

All 156: https://openairdocs.org/aircraft/N448AS/reports.md

## Service difficulty reports on N448AS not matched to an aircraft (1)

They name N448AS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR HUNA20110623001](https://openairdocs.org/sdr/HUNA20110623001), Jun 23, 2011: WINDSCREEN. CRACKED. DURING CRUISE 100 MILES SOUTH OF PARIS FRANCE ON A FAR PART 91 FLIGHT AT FL 430 THE LEFT FORWARD WINDOW (PANEL A) INTERIOR GLASS SHATTERED, IT WAS NOTED THAT NO

## STCs that may be installed (OpenAirDocs) (429, 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 737-990ER)

- [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 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 ST12424CH](https://openairdocs.org/stc/ST12424CH): Installation of NGAS Provisions Installation. Astronics Connectivity Systems and Certification Corp
- [STC ST02174SE](https://openairdocs.org/stc/ST02174SE): Installation of a B/E Aerospace lavatory. B/E Aerospace, Inc. - FSI. Lists 737-900 Series
- [STC ST09927AC](https://openairdocs.org/stc/ST09927AC): Installation of a Gables Audio Management System. L2 Aviation
- [STC ST10928SC](https://openairdocs.org/stc/ST10928SC): Installation of an Iridium Communications System. L2 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 ST02329AT-D](https://openairdocs.org/stc/ST02329AT-D): Installation of TCC AERIS FX IFE system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737-900 Series
- [STC ST02389AT-D](https://openairdocs.org/stc/ST02389AT-D): Installation of Collins High Frequency Radio. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737-900 Series
- [STC ST04159AT](https://openairdocs.org/stc/ST04159AT): Installation of PED Power. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04272AT](https://openairdocs.org/stc/ST04272AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04392AT](https://openairdocs.org/stc/ST04392AT): Main Cabin Cargo Carry Provisions 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 ST03735NY](https://openairdocs.org/stc/ST03735NY): Installation of a ViaSat KA SATCOM Antenna System. ALOFT AeroArchitects
- [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 ST09945AC](https://openairdocs.org/stc/ST09945AC): Installation of the Spacex Starlink Aviation Satcom System. Space Exploration Technologies Corp./Starlink Aviation
- [STC ST04831NY](https://openairdocs.org/stc/ST04831NY): Installation of Vortex Control Technologies Finlets. Kilroy Aviation LLC
- [STC ST04758NY](https://openairdocs.org/stc/ST04758NY): Installation of single cockpit USB charger. Eirtech Aviation Services Inc
- [STC ST09839DS](https://openairdocs.org/stc/ST09839DS): Aircraft G4 Galley Chiller Installation. United Airlines
- [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 ST02643LA](https://openairdocs.org/stc/ST02643LA): Installation of Stow Bin Protective Wear Strip. Vogt Aero LLC
- [STC ST02746NY](https://openairdocs.org/stc/ST02746NY): Installation of an advertisement container on the bottom of a seat back tray table. Atin OOH LLC
- [STC ST03218CH](https://openairdocs.org/stc/ST03218CH): Modify aircraft interior to match standard passenger cofigurations, IAW Global Onboard Partners MDL # 252013-737-MDL-02, Rev. N, dtd 1/4/22 or later FAA approved revisions. Atin OOH LLC
- [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 ST02829CH](https://openairdocs.org/stc/ST02829CH): Installation of Row 44 Broadband Antenna System Provisions. Anuvu IFC Corporation
- [STC ST02836CH-D](https://openairdocs.org/stc/ST02836CH-D): Installation and activation of a Row 44 Broadband System. Anuvu IFC Corporation
- [STC ST03235CH](https://openairdocs.org/stc/ST03235CH): Certification of Compatibility with Wireless Data Technologies. Anuvu IFC Corporation. Lists 737-900 Series
- [STC ST03301NY](https://openairdocs.org/stc/ST03301NY): Installation and activation of a new Row 44 Wireless Broadband System. Anuvu IFC Corporation
- [STC ST04324CH](https://openairdocs.org/stc/ST04324CH): Installation of a retrofit satellite antenna and associated power supply unit on aircraft previously fitted with the Row 44 Broadband System. Anuvu IFC Corporation
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC. Lists 737-900 Series
- [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF
- [STC ST12200IB](https://openairdocs.org/stc/ST12200IB): Istallation of the AFIRS Edge+ system. FLYHT Aerospace Solutions Ltd
- [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 ST11396DS](https://openairdocs.org/stc/ST11396DS): Installation of an Avionica aviONS (Onboard Network System). Aircraft Systems and Manufacturing Inc
- [STC ST01335LA](https://openairdocs.org/stc/ST01335LA): Installation of a reinforced cockpit door. Safran Cabin Inc. Lists 737-900 Series
- [STC ST01492LA](https://openairdocs.org/stc/ST01492LA): Installation of Galley G3A and 6A. Safran Cabin Inc. Lists 737-900 Series
- [STC ST01783LA](https://openairdocs.org/stc/ST01783LA): Installation of a Closet, P/N 501227-1. Safran Cabin Inc. Lists 737-900 Series
- [STC ST02081LA](https://openairdocs.org/stc/ST02081LA): Installation of Divider and Curtain Assembly. Safran Cabin Inc. Lists 737-900 Series
- [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 ST02172SE](https://openairdocs.org/stc/ST02172SE): Installation of new ovens. B/E Aerospace Inc. - FSI
- [STC ST09865AC](https://openairdocs.org/stc/ST09865AC): Installation of Panasonic FlightLink. L2 Aviation
- [STC ST04798NY](https://openairdocs.org/stc/ST04798NY): AAR Engineering Services Seat Re-pitch. Delta Engineering Corporation
- [STC ST04668CH](https://openairdocs.org/stc/ST04668CH): Installation of Honeywell HCR-25 Cockpit Voice Recorder (CVR). Honeywell Aerospace Inc
- [STC ST01479CH](https://openairdocs.org/stc/ST01479CH): Installation of Smiths Industries Flight Management System data bus portable computing device recorder. Amphenol Cable and Interconnect Technologies, Inc. Lists 737-900 Series

All 429: https://openairdocs.org/aircraft/N448AS/stcs.md

## Related

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

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.