# N921AN: 1999 Boeing 737-823

- Status: Valid registration
- Airframe: [Boeing 737-823](https://openairdocs.org/model/boeing-737-823) (registry code 13844CB, 162 seats)
- Engine: [CFM International CFM56 series](https://openairdocs.org/engine/cfm-international-cfm56-series) (registry code 13802)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 29522
- Year built: 1999
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: October 12, 1999
- Certificate issued: October 13, 1999
- Expires: August 31, 2028
- Mode S code: ACC1EE
- Registered owner: [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC)
- Location: [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth)
- Owner type: Corporation
- Owner's area on the map: 32.8240° N, 97.0491° W: Placed by OpenAirDocs at the center of ZIP code 76155, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=921AN
- Page: https://openairdocs.org/aircraft/N921AN

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 model are included.

## ADs that may apply (OpenAirDocs): 381 in force

### Matched by airframe (Boeing 737-823)

- [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 2025-05-16](https://openairdocs.org/ad/2025-05-16): Fuselage · Boeing 737-800 Series. Effective Apr 22, 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 2024-18-08](https://openairdocs.org/ad/2024-18-08): Equipment/furnishings · Boeing 737-300 Series, 737-400 Series and 737-800 Series. Effective Nov 15, 2024
- [AD 2024-18-07](https://openairdocs.org/ad/2024-18-07): Equipment/Furnishing · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 12, 2024
- [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 2024-01-06](https://openairdocs.org/ad/2024-01-06): Fuselage · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Mar 7, 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 2022-18-13](https://openairdocs.org/ad/2022-18-13): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Oct 31, 2022
- [AD 2022-13-18](https://openairdocs.org/ad/2022-13-18): Oxygen · Boeing 737-700 Series, 737-800 Series, 747-8 Series and 3 more. Effective Sep 15, 2022
- [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 2022-08-05](https://openairdocs.org/ad/2022-08-05): Fuselage · Boeing 737-800 Series. Effective May 27, 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 2021-21-09](https://openairdocs.org/ad/2021-21-09): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Dec 13, 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 2021-02-14](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 2021-02-13](https://openairdocs.org/ad/2021-02-13): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 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 2019-22-06](https://openairdocs.org/ad/2019-22-06): Fuel · Boeing 737-800 Series with STC ST00830SE. Effective Dec 30, 2019

### Matched by engine (CFM International CFM56 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 2022-02-03](https://openairdocs.org/ad/2022-02-03): Turbine Engine Accessory Drive · CFM International CFM56-3, CFM56-3B, CFM56-3C and 34 more. Effective Mar 22, 2022
- [AD 2021-16-08](https://openairdocs.org/ad/2021-16-08): Turbine Section · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 55 more. Effective Sep 28, 2021
- [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 2017-14-08](https://openairdocs.org/ad/2017-14-08): Turbine Engine Compressor Section · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Aug 18, 2017
- [AD 2017-05-09](https://openairdocs.org/ad/2017-05-09): Accessory Gearboxes · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Apr 13, 2017
- [AD 2016-14-10](https://openairdocs.org/ad/2016-14-10): High-pressure turbine (HPT) disks · CFM International CFM56-3, CFM56-3B and CFM56-3C with STC SE00034EN. Effective Aug 9, 2016
- [AD 2016-02-04](https://openairdocs.org/ad/2016-02-04): Turbine rear frames (TRFs) · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/3 and 33 more. Effective Mar 1, 2016
- [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 2013-14-06](https://openairdocs.org/ad/2013-14-06): Hydro-mechanical unit (HMU) fuel control · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Sep 3, 2013
- [AD 2012-02-03](https://openairdocs.org/ad/2012-02-03): Engine · CFM International CFM56-5B1/3, CFM56-5B2/3, CFM56-5B3/3 and 8 more. Effective Mar 15, 2012
- [AD 2010-13-09](https://openairdocs.org/ad/2010-13-09): Stage 3 low-pressure turbine (LPT) · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 88 more. Effective Jul 26, 2010
- [AD 2010-12-03](https://openairdocs.org/ad/2010-12-03): Fan blades · CFM International CFM56-3 and CFM56-3B. Effective Jul 13, 2010
- [AD 2010-09-14](https://openairdocs.org/ad/2010-09-14): Exhaust gas temperature (EGT) · CFM International CFM56-5B1/2P, CFM56-5B1/P, CFM56-5B2/2P and 16 more. Effective Jun 8, 2010
- [AD 2010-01-05](https://openairdocs.org/ad/2010-01-05): LP turbine rear frames · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B20/3 and 25 more. Effective Feb 18, 2010
- [AD 2009-18-01](https://openairdocs.org/ad/2009-18-01): LP turbine rear frames · CFM International CFM56-5B1/3, CFM56-5B1/P, CFM56-5B2/3 and 19 more. Effective Oct 1, 2009
- [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
- [AD 2008-03-09](https://openairdocs.org/ad/2008-03-09): Low pressure turbine rear frames (TRFs) · CFM International CFM56-7B18, CFM56-7B20, CFM56-7B22 and 10 more. Effective Mar 10, 2008
- [AD 2007-24-04](https://openairdocs.org/ad/2007-24-04): Low pressure turbine (LPT) · CFM International CFM56-5C4/1. Effective Dec 6, 2007
- [AD 2007-03-15](https://openairdocs.org/ad/2007-03-15): Exhaust gas temperature (EGT) harness · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 34 more. Effective Mar 19, 2007
- [AD 2006-26-01](https://openairdocs.org/ad/2006-26-01): Fuel filters · CFM International CFM56-2, CFM56-2A, CFM56-2B and 93 more. Effective Jan 3, 2007
- [AD 2005-10-05](https://openairdocs.org/ad/2005-10-05): Air turbine starters · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 50 more. Effective Jun 14, 2005
- [AD 97-09-02 R3](https://openairdocs.org/ad/97-09-02-R3): High pressure turbine rotor (HPTR) front shafts · CFM International CFM56-5C2, CFM56-5C3/G and CFM56-5C4. Effective Oct 14, 2004
- [AD 2004-10-13](https://openairdocs.org/ad/2004-10-13): Service main fuel pumps · CFM International CFM56-3, CFM56-5, CFM56-5-A1/F and 4 more. Effective Jun 24, 2004
- [AD 2002-22-12](https://openairdocs.org/ad/2002-22-12): Titeflex hoses · BAE Systems ATP, Avro 146-RJ100A, Avro 146-RJ70A and 122 more. Effective Dec 13, 2002
- [AD 2002-16-18](https://openairdocs.org/ad/2002-16-18): Low pressure turbine (LPT) nozzle segments · CFM International CFM56-5B1, CFM56-5B1/2P, CFM56-5B1/P and 33 more. Effective Sep 18, 2002
- [AD 2002-13-03](https://openairdocs.org/ad/2002-13-03): Turbofan Engines · CFM International CFM56-2, CFM56-2A, CFM56-2B and 55 more. Effective Aug 1, 2002
- [AD 2002-02-13](https://openairdocs.org/ad/2002-02-13): Magnetic Drain Plug · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 33 more. Effective Mar 21, 2002
- [AD 2001-11-05](https://openairdocs.org/ad/2001-11-05): No. 4 Bearings · CFM International CFM56-2, CFM56-2B, CFM56-3 and 45 more. Effective Jun 11, 2001
- [AD 2001-09-17](https://openairdocs.org/ad/2001-09-17): Fuel Manifold and CJ9L Harness · CFM International CFM56-5C2, CFM56-5C2/4, CFM56-5C2/F and 13 more. Effective May 14, 2001
- [AD 2001-04-06](https://openairdocs.org/ad/2001-04-06): Fan Disk · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Apr 4, 2001
- [AD 2001-02-12](https://openairdocs.org/ad/2001-02-12): On-Wing Torque Inspection · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 11 more. Effective Feb 14, 2001
- [AD 2000-15-01](https://openairdocs.org/ad/2000-15-01): Fuel Leakage · CFM International CFM56-2, CFM56-2A, CFM56-2B and 39 more. Effective Oct 2, 2000
- [AD 2000-05-22](https://openairdocs.org/ad/2000-05-22): CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective May 2, 2000
- [AD 99-06-16](https://openairdocs.org/ad/99-06-16): High Pressure Turbine Rotor (HPTR) Front Air Seal · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Apr 21, 1999
- [AD 98-21-23](https://openairdocs.org/ad/98-21-23): Electronic Engine Control · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Nov 2, 1998
- [AD 98-19-20](https://openairdocs.org/ad/98-19-20): Hydromechanical Unit · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 7 more. Effective Oct 7, 1998
- [AD 98-14-51](https://openairdocs.org/ad/98-14-51): Accessory Gearbox · CFM International CFM56-7B20, CFM56-7B20/2, CFM56-7B22 and 10 more. Effective Oct 1, 1998
- [AD 98-19-10](https://openairdocs.org/ad/98-19-10): Accessory Gearbox · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Sep 28, 1998
- [AD 98-12-32](https://openairdocs.org/ad/98-12-32): High Pressure Turbine Rotor Disks · CFM International CFM56-2, CFM56-2A, CFM56-2B and 3 more. Effective Jul 20, 1998
- [AD 98-10-11](https://openairdocs.org/ad/98-10-11): Accessory Gearbox · CFM International CFM56-3, CFM56-3B, CFM56-3C and 31 more. Effective Jun 3, 1998
- [AD 98-07-02](https://openairdocs.org/ad/98-07-02): Air/oil Seal · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Mar 30, 1998
- [AD 98-02-04](https://openairdocs.org/ad/98-02-04): Low Pressure Turbine Case · CFM International CFM56-5B1/2P, CFM56-5B2/2P, CFM56-5B3/2P and 1 more. Effective Mar 23, 1998
- [AD 89-23-06 R1](https://openairdocs.org/ad/89-23-06-R1): Magnetic Chip Detector · CFM International CFM56-2, CFM56-2A, CFM56-3 and 8 more. Effective Jan 28, 1998
- [AD 97-08-01](https://openairdocs.org/ad/97-08-01): Fan Disks · CFM International CFM56-3, CFM56-3B and CFM56-3C. Effective Jun 23, 1997
- [AD 97-06-01](https://openairdocs.org/ad/97-06-01): High Pressure Compressor Rotor (HPCR) Stage 1-2 Spool · CFM International CFM56-5, CFM56-5B1, CFM56-5B1/2P and 28 more. Effective Jun 3, 1997
- [AD 97-05-13](https://openairdocs.org/ad/97-05-13): Air Turbine Engine Starter · CFM International CFM56-5, CFM56-5-A1/F, CFM56-5A4 and 3 more. Effective Jun 3, 1997
- [AD 96-25-11](https://openairdocs.org/ad/96-25-11): Redesigned Fan Blades · CFM International CFM56-3B and CFM56-3C. Effective Jan 29, 1997

### 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 2013-24-13](https://openairdocs.org/ad/2013-24-13) (historical): Fuselage · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 8 more. Effective Jan 7, 2014
- [AD 2013-19-04](https://openairdocs.org/ad/2013-19-04) (historical): Fuselage · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 4, 2013
- [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 2012-21-08](https://openairdocs.org/ad/2012-21-08) (historical): Auto Flight · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Nov 27, 2012
- [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 2010-17-05](https://openairdocs.org/ad/2010-17-05) (historical): Fuel system · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Sep 22, 2010
- [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 2009-24-07](https://openairdocs.org/ad/2009-24-07) (historical): Landing gear · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 1 more. Effective Jan 4, 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 2009-01-02](https://openairdocs.org/ad/2009-01-02) (historical): Air conditioning (A/C) outlet · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Feb 27, 2009
- [AD 2008-12-04](https://openairdocs.org/ad/2008-12-04) (historical): Fuselage skin · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jul 16, 2008
- [AD 2008-10-10](https://openairdocs.org/ad/2008-10-10) (historical): New limitations for fuel tank systems · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jun 12, 2008
- [AD 2008-08-24](https://openairdocs.org/ad/2008-08-24) (historical): Drain tube assemblies · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective May 27, 2008
- [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 2007-06-52](https://openairdocs.org/ad/2007-06-52) (historical): Spoilers · Boeing 737-800 Series. Effective May 7, 2007
- [AD 2007-06-51](https://openairdocs.org/ad/2007-06-51) (historical): Flight spoiler actuator jams · Boeing 737-800 Series
- [AD 2006-10-17](https://openairdocs.org/ad/2006-10-17) (historical): Compass bracket assembly · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Jun 22, 2006
- [AD 2005-24-03](https://openairdocs.org/ad/2005-24-03) (historical): Nacelle support fittings and the lower wing skin panels · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 1 more. Effective Dec 28, 2005
- [AD 2005-25-03](https://openairdocs.org/ad/2005-25-03) (historical): Point "D" splice fitting · Boeing 737-700 Series, 737-700C Series and 737-800 Series. Effective Dec 21, 2005
- [AD 2005-12-05](https://openairdocs.org/ad/2005-12-05) (historical): Flight deck door · Reinforced cockpit door (Safran Cabin STC ST01335LA or 2 others). Effective Jul 19, 2005
- [AD 2005-07-20](https://openairdocs.org/ad/2005-07-20) (historical): Flight control computers · Boeing 737-600 Series, 737-700 Series, 737-800 Series and 1 more. Effective May 12, 2005
- [AD 2005-05-18](https://openairdocs.org/ad/2005-05-18) (historical): Webs of the aft pressure bulkhead · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Apr 18, 2005
- [AD 2003-14-04](https://openairdocs.org/ad/2003-14-04) (historical): Flight Deck Door Pressure Relief Latch Assemblies · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 14 more. Effective Jul 25, 2003
- [AD 2003-03-01](https://openairdocs.org/ad/2003-03-01) (historical): Aft Engine Mount · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Feb 13, 2003
- [AD 2002-18-52](https://openairdocs.org/ad/2002-18-52) (historical): Fuel Pumps · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 4 more
- [AD 2002-16-03](https://openairdocs.org/ad/2002-16-03) (historical): Main landing gear (MLG) · Boeing 737-600 Series, 737-700 Series, 737-700C Series and 2 more. Effective Aug 27, 2002
- [AD 2001-06-08](https://openairdocs.org/ad/2001-06-08) (historical): Elevator Hinge Plates · Boeing 737-600 Series, 737-700 Series and 737-800 Series. Effective Apr 9, 2001

All 453: https://openairdocs.org/aircraft/N921AN/ads.md

## Information bulletins (advisory) (22 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 2025-08](https://openairdocs.org/saib/2025-08): INDICATING/RECORDING SYSTEM, Erroneous Illumination of Cabin Altitude Warning Lights in High Altitude Landing Mode. Issued Sep 8, 2025
- [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-09-03](https://openairdocs.org/saib/NM-09-03): Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations. Issued Dec 11, 2008
- [SAIB NM-08-43](https://openairdocs.org/saib/NM-08-43): Cabin Equipment/Furnishings - Seats. Issued Sep 3, 2008
- [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-06-57](https://openairdocs.org/saib/NM-06-57): Reports of damage to airplanes and to property on the ground caused by blue or clear ice falling from airplanes.. Issued Jul 27, 2006
- [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-13-33R2](https://openairdocs.org/saib/NE-13-33R2): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jan 28, 2014
- [SAIB NE-12-29](https://openairdocs.org/saib/NE-12-29): Engine Fuel Distribution  CFM56-5B LPTACC Fuel Manifold. Issued Apr 27, 2012
- [SAIB NE-06-02](https://openairdocs.org/saib/NE-06-02): . Issued Oct 18, 2005
- [SAIB NE-13-33R1](https://openairdocs.org/saib/NE-13-33R1) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued Jun 24, 2013
- [SAIB NE-13-33](https://openairdocs.org/saib/NE-13-33) (historical): Turbine Engine Air Inlet Section - LP Turbine, Stage 1 Nozzle Vanes. Issued May 13, 2013
- [SAIB NE-08-17R2](https://openairdocs.org/saib/NE-08-17R2) (historical): Turbine Section - Propulsion Technology LLC Unapproved Repair. Issued Mar 7, 2011
- [SAIB NE-08-17R1](https://openairdocs.org/saib/NE-08-17R1) (historical): Propulsion Technology LLC Unapproved Repair. Issued May 22, 2008
- [SAIB NE-08-17](https://openairdocs.org/saib/NE-08-17) (historical): Propulsion Technologies International Unapproved Repair. Issued May 14, 2008

## NTSB investigations

None matched to N921AN.

## FAA accident and incident reports

None matched to N921AN.

## Service difficulty reports (174, 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 AALA202603026988](https://openairdocs.org/sdr/AALA202603026988), Feb 27, 2026: CONTROL VALVE. FAULTY. AIRCRAFT WAS GROUNDED: ON ALL 3 LEGS WHEN STARTING NUMBER 2 ENGINE WE GET A VERY STRONG FUEL AND EXHAUST ODOR IN THE CABIN AND FLIGHT DECK AS SOON AS FUEL IS IN
- [SDR AALA202512319322](https://openairdocs.org/sdr/AALA202512319322), Dec 28, 2025: PUMP. LOW PRESSURE. AIRCRAFT WAS NOT GROUNDED: NR 2 FUEL TANK AFT BOOST PUMP LOW PRESSURE LIGHT ILLUMINATED. MAINTENANCE REPLACED BOOST PUMP AND ACCOMPLISHED A SATISFACTORY LEAK / 
- [SDR AALA202505158295](https://openairdocs.org/sdr/AALA202505158295), May 12, 2025: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED EMERGENCY LIGHT INOPERATIVE AT ROW 24ABC. VERIFIED EMERGENCY LIGHT AT ROW 24ABC INOPERATIVE. **SUPPLEMENTAL REPORT FOR (
- [SDR AALA202505138295](https://openairdocs.org/sdr/AALA202505138295), May 12, 2025: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED EMERGENCY LIGHT INOPERATIVE AT ROW 24ABC. VERIFIED EMERGENCY LIGHT AT ROW 24ABC INOPERATIVE. **SUPPLEMENTAL REPORT WILL 
- [SDR AALA202505097615](https://openairdocs.org/sdr/AALA202505097615), May 7, 2025: ROLLER. DISLODGED. AIRCRAFT WAS NOT GROUNDED: LAVATORY-D PULLED OFF TRACK BY PASSENGER AND IS STUCK IN LAVATORY NOW. REMOVED AND REPLACED ROLLER PLUNGER IN LAVATORY-D DOOR. PER CM
- [SDR AALA202505087615](https://openairdocs.org/sdr/AALA202505087615), May 7, 2025: DOOR. OFF TRACK. AIRCRAFT WAS NOT GROUNDED: LAVATORY-D PULLED OFF TRACK BY PASSENGER AND IS STUCK IN LAVATORY NOW. (OPEN).
- [SDR AALA202504296958](https://openairdocs.org/sdr/AALA202504296958), Apr 24, 2025: DUCT. DAMAGED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504292401](https://openairdocs.org/sdr/AALA202504292401), Apr 24, 2025: MODULE. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504294417](https://openairdocs.org/sdr/AALA202504294417), Apr 24, 2025: SENSOR. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504296089](https://openairdocs.org/sdr/AALA202504296089), Apr 24, 2025: SENSOR. BENT. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504296372](https://openairdocs.org/sdr/AALA202504296372), Apr 24, 2025: OVERHEAT SENSOR. BENT. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504291122](https://openairdocs.org/sdr/AALA202504291122), Apr 24, 2025: AIR FILTER. DIRTY. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202504251122](https://openairdocs.org/sdr/AALA202504251122), Apr 24, 2025: CONTROL MODULE. MALFUNCTIONED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CONTROL CABIN ZONE TEMPERATURE LIGHT ON RECALL, FLIGHT DECK TEMP UNCONTROLLABLE IT IS STUCKED AT FULL C
- [SDR AALA202503112076](https://openairdocs.org/sdr/AALA202503112076), Mar 10, 2025: ADIRU. FAILED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: BOTH FLIGHT DIRECTORS DROPPED OFF DURING TAKEOFF ROLL, FLIGHT DIRECTORS 2 RETURNED BUT NOT FLIGHT D
- [SDR AALA202501289142](https://openairdocs.org/sdr/AALA202501289142), Jan 27, 2025: LIGHT. DETACHED. AIRCRAFT WAS NOT GROUNDED: 30C ESCAPE LIGHT DETACHED. REATTACHED SEAT 30C ESCAPE LIGHT, OPERTIONAL CHECK GOOD. PER CMM 25-23-67.
- [SDR AALA202501225269](https://openairdocs.org/sdr/AALA202501225269), Jan 17, 2025: SELECTOR. INOPERATIVE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS NOT DECLARED DUE TO: COCKPIT TEMPERATURE UNCONTROLLABLE, AIR WAS FREEZING AND COULD NOT BE ADJUSTED; AIRCRAFT DIVERTED T
- [SDR AALA202412242957](https://openairdocs.org/sdr/AALA202412242957), Dec 23, 2024: OVEN. BURNED. AIRCRAFT WAS NOT GROUNDED: FORWARD GALLEY RIGHT OVEN WAS OVERHEATING AND GIVING OFF A STRONG BURNING SMELL. REMOVED AND REPLACED FORWARD GALLEY NUMBER 2 OVEN. P
- [SDR AALA202412132549](https://openairdocs.org/sdr/AALA202412132549), Dec 12, 2024: LENS. BROKEN. AIRCRAFT WAS NOT GROUNDED: LEFT OVERWING EMERGENCY EXIT LIGHT COVER BROKEN. REPLACED EMERGENCY LIGHT ASSEMBLY AT LEFT OVERWING EXIT AFT OF SEAT16A PASSENGER WIN
- [SDR AALA202410257483](https://openairdocs.org/sdr/AALA202410257483), Oct 24, 2024: WINDOW. UNDERTORQUED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: CLIMBING THROUGH FL 220, NOTICED WIRE AND STRING FLAPPING UP AGAINST CAPTAIN BOTTOM OF SIDE WINDOW. AT 
- [SDR AALA202409055512](https://openairdocs.org/sdr/AALA202409055512), Aug 29, 2024: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: EMERGENCY ESCAPE PATH LIGHT ON SEAT 14C IS INOPERATIVE. **SUPPLEMENTAL REPORT FOR (AALA202408305512): UPON FURTHER INSPECTION FOUND T
- [SDR AALA202408305512](https://openairdocs.org/sdr/AALA202408305512), Aug 29, 2024: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: EMERGENCY ESCAPE PATH LIGHT ON SEAT 14C IS INOPERATIVE. **SUPPLEMENTAL REPORT WILL BE SUBMITTED**(OPEN).
- [SDR AALA202407036333](https://openairdocs.org/sdr/AALA202407036333), Jul 2, 2024: LIGHT. UNSECURE. AIRCRAFT WAS NOT GROUNDED: AISLE EMERGENCY EXIT LITE AT 31C NEEDS RESECURE. SECURED LIGHT. PER AMM 33-51-11.
- [SDR AALA202406030558](https://openairdocs.org/sdr/AALA202406030558), Jun 2, 2024: DOOR LATCH. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATORY DOOR REPORTED HARD TO OPEN AND CLOSE. ADJUSTED DOOR LATCH ASSEMBLY, OPERTIONAL CHECK GOOD. PER CMM 25-44-49.
- [SDR AALA202405291107](https://openairdocs.org/sdr/AALA202405291107), May 24, 2024: MANIFOLD. INOPERATIVE. AIRCRAFT WAS GROUNDED: LEFT TANK FILLING UNCOMMANDED WITH VALVE ON MEL INOPERATIVE AND ALREADY CLOSED. REMOVE AND REPLACED REFUEL MANIFOLD. PER AMM 28-21-21
- [SDR AALA202405242685](https://openairdocs.org/sdr/AALA202405242685), May 22, 2024: MODULATING VALVE. INOPERATIVE. AIRCRAFT WAS GROUNDED: AFT CABIN TEMP CONTROLLER WILL NOT CONTROL CABIN TEMPERATURE IN AUTO. TEMPERATURE GOES FULL HOT WITH A SMELL OF BURNING PLASTIC IN FLIGHT
- [SDR AALA202405247575](https://openairdocs.org/sdr/AALA202405247575), May 22, 2024: SENSOR. INOPERATIVE. AIRCRAFT WAS GROUNDED: AFT CABIN TEMP CONTROLLER WILL NOT CONTROL CABIN TEMPERATURE IN AUTO. TEMPERATURE GOES FULL HOT WITH A SMELL OF BURNING PLASTIC IN FLIGHT
- [SDR AALA202405232685](https://openairdocs.org/sdr/AALA202405232685), May 22, 2024: CONTROLLER. MALFUNCTIONED. AIRCRAFT WAS GROUNDED: AFT CABIN TEMP CONTROLLER WILL NOT CONTROL CABIN TEMPERATURE IN AUTO. TEMPERATURE GOES FULL HOT WITH A SMELL OF BURNING PLASTIC IN FLIGHT
- [SDR AALA202405207043](https://openairdocs.org/sdr/AALA202405207043), May 19, 2024: DOOR FRAME. LOOSE. AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATORY DOOR DIFFICULT TO OPEN AND CLOSE. TIGHTENED LOOSE LAVATORY DOOR FRAME SCREWS. FUNCTIONAL CHECK GOOD. PER AMM 20-00-0
- [SDR AALA202404299498](https://openairdocs.org/sdr/AALA202404299498), Apr 26, 2024: TOILET. LEAKING. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202404293290](https://openairdocs.org/sdr/AALA202404293290), Apr 26, 2024: AIR FILTER. DIRTY. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202404296275](https://openairdocs.org/sdr/AALA202404296275), Apr 26, 2024: AIR FILTER. DIRTY. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202404291082](https://openairdocs.org/sdr/AALA202404291082), Apr 26, 2024: INSULATION. CONTAMINATED. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202404297526](https://openairdocs.org/sdr/AALA202404297526), Apr 26, 2024: O-RING. LEAKING. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202404294749](https://openairdocs.org/sdr/AALA202404294749), Apr 26, 2024: CLAMP. LEAKING. AIRCRAFT WAS GROUNDED: FISH SMELLING ODOR THROUGHOUT THE CABIN. REMOVED AND REPLACED LAVATORY-A TOILET (AALA202404299498), PER AMM 38-32-15. REMOVE AND REPLACED
- [SDR AALA202402289258](https://openairdocs.org/sdr/AALA202402289258), Feb 27, 2024: DOOR. LOOSE. AIRCRAFT WAS NOT GROUNDED: AFT LAVATORY DOOR JAM HARD TO OPERATE. TIGHTEN LOOSE HARDWARE AT TOP OF AFT LEFT LAVATORY DOOR.
- [SDR AALA202312264557](https://openairdocs.org/sdr/AALA202312264557), Dec 25, 2023: DOOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: L1 LAVATORY ENTRY DOOR DIFFICULT TO OPEN OR CLOSE. ADJUSTED LAVATORY DOOR.
- [SDR AALA202311145081](https://openairdocs.org/sdr/AALA202311145081), Nov 12, 2023: COMPENSATOR. FAULTY. AIRCRAFT WAS GROUNDED: RIGHT FUEL QUANTITY INDICATION ERRATIC. DIFFERENT READING DURING PREFLIGHT AND DURING CRUISE. FUEL LEVELS KEEP DROPPING.**SUPPLEMENTAL RE
- [SDR AALA202311135081](https://openairdocs.org/sdr/AALA202311135081), Nov 12, 2023: UNKNOWN. UNKNOWN. AIRCRAFT WAS GROUNDED: RIGHT FUEL QUANTITY INDICATION ERRATIC. DIFFERENT READING DURING PREFLIGHT AND DURING CRUISE. FUEL LEVELS DROPPING DURING TANK BALANCING.
- [SDR AALA202311078887](https://openairdocs.org/sdr/AALA202311078887), Nov 4, 2023: SIGN. BROKEN. AIRCRAFT IN BASE MAINTENANCE: OVERWING EXIT SIGN BASE ASSEMBLY BROKEN. REMOVED AND REPLACED LOWER EXIT FLOOD LIGHT IDENTIFIER AT LEFT HAND FORWARD OVERWING EXIT
- [SDR AALA202311072338](https://openairdocs.org/sdr/AALA202311072338), Nov 4, 2023: SIGN. BROKEN. AIRCRAFT IN BASE MAINTENANCE: OVERWING EXIT SIGN BASE ASSEMBLY BROKEN. REMOVED AND REPLACED LOWER EXIT FLOOD LIGHT IDENTIFIER AT LEFT HAND FORWARD OVERWING EXIT
- [SDR AALA202311075627](https://openairdocs.org/sdr/AALA202311075627), Nov 4, 2023: SIGN. BROKEN. AIRCRAFT IN BASE MAINTENANCE: OVERWING EXIT SIGN BASE ASSEMBLY BROKEN. REMOVED AND REPLACED LOWER EXIT FLOOD LIGHT IDENTIFIER AT LEFT HAND FORWARD OVERWING EXIT
- [SDR AALA202311076088](https://openairdocs.org/sdr/AALA202311076088), Nov 4, 2023: SIGN. BROKEN. AIRCRAFT IN BASE MAINTENANCE: OVERWING EXIT SIGN BASE ASSEMBLY BROKEN. REMOVED AND REPLACED LOWER EXIT FLOOD LIGHT IDENTIFIER AT LEFT HAND FORWARD OVERWING EXIT
- [SDR AALA202311060790](https://openairdocs.org/sdr/AALA202311060790), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND RBL 54.60 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 
- [SDR AALA202311060458](https://openairdocs.org/sdr/AALA202311060458), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND RBL 40.87 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 
- [SDR AALA202311062184](https://openairdocs.org/sdr/AALA202311062184), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND RBL 32.40 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 
- [SDR AALA202311065555](https://openairdocs.org/sdr/AALA202311065555), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND RBL 15.04 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 
- [SDR AALA202311068570](https://openairdocs.org/sdr/AALA202311068570), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND RBL 6.14 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN B
- [SDR AALA202311069965](https://openairdocs.org/sdr/AALA202311069965), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND LBL 6.14 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN B
- [SDR AALA202311067069](https://openairdocs.org/sdr/AALA202311067069), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND LBL 15.04 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 
- [SDR AALA202311067792](https://openairdocs.org/sdr/AALA202311067792), Oct 20, 2023: FITTING. NONE. AIRCRAFT IN BASE MAINTENANCE: CENTER WING BOX FORWARD SPAR UPPER SHEAR FITTING LOCATED AT BS 540 AND LBL 32.40 REPLACEMENT REQUIRED PER BOEING SERVICE BULLETIN 

All 174: https://openairdocs.org/aircraft/N921AN/reports.md

## STCs that may be installed (OpenAirDocs) (791, 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 737-823)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [STC ST04116NY](https://openairdocs.org/stc/ST04116NY): Update of a Cabin Interior. Delta Engineering Corporation
- [STC ST04669CH](https://openairdocs.org/stc/ST04669CH): Installation of Honeywell Advanced Communications and Entertainment System (ACES). Honeywell Aerospace
- [STC ST09933AC](https://openairdocs.org/stc/ST09933AC): Expansion of parameters in the digital flight data acquisition unit (DFDAU). L2 Aviation
- [STC ST02269NY](https://openairdocs.org/stc/ST02269NY): Installation of Self Illuminating Floor Path Marking System. Lufthansa Technik AG
- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [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 ST02528LA](https://openairdocs.org/stc/ST02528LA): Installation of the Thales Avionics, Inc. Data Transfer Device (DTD) or Solid State Drive (SSD) into the existing Cabin Media Loader (CML). Thales Avionics Inc
- [STC ST12443LA](https://openairdocs.org/stc/ST12443LA): Installation of Teledyne Controls Edge Computing Platform (ECP). Teledyne Controls, LLC
- [STC ST12432IB](https://openairdocs.org/stc/ST12432IB): Installation of Acro Series 9 Seats Economy Class Seats in 189 Y/C layout. KNSI AVIATION ENGINEERING EUROPE LTD
- [STC ST10477SC](https://openairdocs.org/stc/ST10477SC): Installation of two Interior configurations in Boeing 737-8EX (MSN 33473). Jet Aviation St. Louis Inc
- [STC ST09853DS](https://openairdocs.org/stc/ST09853DS): Dual Radome Aerodynamic Validation. United Airlines
- [STC ST04254NY](https://openairdocs.org/stc/ST04254NY): Installation of Viasat Satcom Software. ALOFT AeroArchitects
- [STC ST02666LA](https://openairdocs.org/stc/ST02666LA): Installation of main deck cargo loading system. Ancra International LLC
- [STC ST04281NY](https://openairdocs.org/stc/ST04281NY): Replacement of Aft Lavatories. B/E Aerospace Limited
- [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 ST02690LA](https://openairdocs.org/stc/ST02690LA): Conversion of a Boeing 737-800 series passenger configuration to a freighter configuration, incorporating a new main deck cargo door, interior, and associated systems. Aeronautical Engineers Inc
- [STC ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc
- [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 ST02747LA](https://openairdocs.org/stc/ST02747LA): Installation of the Thales Digital Server Unit. Thales Avionics, Inc
- [STC ST00555AT](https://openairdocs.org/stc/ST00555AT): Installation of Airshow 210 system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists 737 Series
- [STC ST02347AT-D](https://openairdocs.org/stc/ST02347AT-D): Installation of Collins HF Transceivers. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03197AT](https://openairdocs.org/stc/ST03197AT): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03200AT](https://openairdocs.org/stc/ST03200AT): Complete interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03631AT-D](https://openairdocs.org/stc/ST03631AT-D): Installation of Windscreen with Stretcher Access and Stowage Box., Aft of the L1 Entry Door. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03816AT-D](https://openairdocs.org/stc/ST03816AT-D): Installation of an Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04167AT](https://openairdocs.org/stc/ST04167AT): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04197AT](https://openairdocs.org/stc/ST04197AT): Cabin interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04207AT](https://openairdocs.org/stc/ST04207AT): Cabin interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04208AT](https://openairdocs.org/stc/ST04208AT): Panasonic IFE Upgrade installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04250AT](https://openairdocs.org/stc/ST04250AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04271AT](https://openairdocs.org/stc/ST04271AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04280AT](https://openairdocs.org/stc/ST04280AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04363AT](https://openairdocs.org/stc/ST04363AT): Interior reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04383AT](https://openairdocs.org/stc/ST04383AT): Interior reconfiguration installation on a Boeing 737-800 Series aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04389AT](https://openairdocs.org/stc/ST04389AT): 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 ST04395AT](https://openairdocs.org/stc/ST04395AT): Interior Reconfiguration installation. ZIM Aircraft Cabin Solutions LLC
- [STC ST04396AT](https://openairdocs.org/stc/ST04396AT): Interior Reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04397AT](https://openairdocs.org/stc/ST04397AT): Interior Reconfiguration installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04496AT](https://openairdocs.org/stc/ST04496AT): Interior Reconfiguration. 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 ST04667CH](https://openairdocs.org/stc/ST04667CH): Installation of Southwest Airlines Interior Reconfiguration for Extended Leg Room (ELR) Cabin. Astronics Connectivity Systems and Certification Corp
- [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 ST04593CH](https://openairdocs.org/stc/ST04593CH): Installation of Astronics EmPower In-Seat Power System. Astronics Connectivity Systems and Certification Corp
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [STC ST03405NY](https://openairdocs.org/stc/ST03405NY): Installation (with demod option) of an Connectivity Antenna. Delta Engineering Corporation
- [STC ST02575SE](https://openairdocs.org/stc/ST02575SE): Installation of an In-Seat Power Supply System. Northwest Aerospace Technologies Inc

All 791: https://openairdocs.org/aircraft/N921AN/stcs.md

## Related

- Other Boeing 737-823 aircraft: https://openairdocs.org/model/boeing-737-823/aircraft.md
- The CFM International CFM56 series engine: https://openairdocs.org/engine/cfm-international-cfm56-series.md

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