# N821NN: 2010 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 CFM56-7B24/3 series](https://openairdocs.org/engine/cfm-international-cfm56-7b24-3-series) (registry code 13074)
- Data sheets: [TCDS A16WE](https://openairdocs.org/tcds/A16WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 30912
- Year built: 2010
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 12, 2010
- Certificate issued: January 19, 2010
- Expires: April 30, 2029
- Mode S code: AB35CB
- Registered owner: [Wilmington Trust Co Trustee](https://openairdocs.org/faa-owner/WILMINGTON%20TRUST%20CO%20TRUSTEE)
- Location: [Wilmington, DE](https://openairdocs.org/faa-place/DE/Wilmington)
- Owner type: Corporation
- Owner's area on the map: 39.7357° N, 75.5321° W: Placed by OpenAirDocs: center of Wilmington, DE, 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=821NN
- Page: https://openairdocs.org/aircraft/N821NN

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 CFM56-7B24/3 model are included.

## ADs that may apply (OpenAirDocs): 336 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 CFM56-7B24/3 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 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 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 2010-01-05](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 2009-11-02](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 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

### 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 397: https://openairdocs.org/aircraft/N821NN/ads.md

## Information bulletins (advisory) (19 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-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 N821NN.

## FAA accident and incident reports

None matched to N821NN.

## Service difficulty reports (92, 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 AALA202607163317](https://openairdocs.org/sdr/AALA202607163317), Jul 14, 2026: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: ROW 17ABC EMERGENCY EXIT LIGHT INOP. MAINTENANCE REPLACED WINDOW LIGHT AT SEAT ROW 17ABC IAW AMM 33-21-01.
- [SDR AALA202605208658](https://openairdocs.org/sdr/AALA202605208658), May 14, 2026: WARNING MESSAGE. ILLUMINATED. AIRCRAFT WAS NOT GROUNDED: DURING THE INITIATION OF THE TAKEOFF LOW PRESSURE LIGHT ON THE RIGHT CENTER TANK ILLUMINATED, FOLLOWED BY A MASTER CAUTION. THERE WAS
- [SDR AALA202509238205](https://openairdocs.org/sdr/AALA202509238205), Sep 18, 2025: TRANSFER SYS. NO DISCREPANCY. AIRCRAFT WAS GROUNDED: DURING CRUISE FUEL IN WOULD MOVE INTO THE CENTER TANKS WHILE FUEL PUMPS WERE OFF. NO EVIDENCE OF FUEL MIGRATION AT THIS TIME, NO FAULT FO
- [SDR AALA202509208866](https://openairdocs.org/sdr/AALA202509208866), Sep 18, 2025: FUEL SYS. MALFUNCTIONED. AIRCRAFT WAS GROUNDED: DURING CRUISE FUEL IN WOULD MOVE INTO THE CENTER TANKS WHILE FUEL PUMPS WERE OFF. (OPEN).
- [SDR AALA202509153350](https://openairdocs.org/sdr/AALA202509153350), Sep 13, 2025: DOOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: LAVATORY-A DOOR IS DIFFICULT TO OPEN AND CLOSE IN FLIGHT. READJUSTED LAVATORY-A DOOR. PER CMM 25-40-64.
- [SDR AALA202507241211](https://openairdocs.org/sdr/AALA202507241211), Jul 23, 2025: DOOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: FORWARD LAVATOR- DOOR DIFFICULT TO OPEN AND CLOSE. ADJUSTED LAVATORY-A DOOR HANDLE, DOOR CLOSES AND OPEN CORRECTLY. PER CMM 25-46-96.
- [SDR AALA202507083092](https://openairdocs.org/sdr/AALA202507083092), Jul 3, 2025: FLASHLIGHT. NO TEST. AIRCRAFT WAS NOT GROUNDED: AFT GALLEY FLIGHT ATTENDANT EMERGENCY FLASHLIGHT NOT PROPERLY FUNCTIONING, DPES NOT STAY ON. REPLACED FLASHLIGHT. PER AMM 25-64-00.
- [SDR AALA202504160006](https://openairdocs.org/sdr/AALA202504160006), Apr 14, 2025: GUIDE ARM. SHEARED. AIRCRAFT WAS GROUNDED: L1 DOOR WILL NOT OPEN FULLY THE PIN SHEARED. REPLACED UPPER GUIDE ARM ASSEMBLY AND ADJUSTED. PER AMM 52-11-21.
- [SDR AALA202504167476](https://openairdocs.org/sdr/AALA202504167476), Apr 14, 2025: GUIDE ARM. SHEARED. AIRCRAFT WAS GROUNDED: L1 DOOR WILL NOT OPEN FULLY. PIN SHEARED. REPLACED UPPER GUIDE ARM ASSEMBLY AND ADJUSTED. PER AMM 52-11-21.
- [SDR AALA202504140389](https://openairdocs.org/sdr/AALA202504140389), Apr 14, 2025: HINGE PIN. SEIZED. AIRCRAFT WAS GROUNDED: PASSENGER DOOR LOCKING AND UNLOCKING MECHANISM BROKEN, WILL NOT ACTUATE IT IS FROZEN. REMOVE AND REPLACED FORWARD ENTRY L1 DOOR HINGE ARM
- [SDR AALA202503288589](https://openairdocs.org/sdr/AALA202503288589), Mar 27, 2025: DOOR. OUT OF ADJUST. AIRCRAFT WAS NOT GROUNDED: LAVATORY-D ACCORDION DOOR GETS JAMMED WHEN TRYING TO OPEN BOTH FROM INSIDE AND OUTSIDE. ADJUSTED DOOR AND CLEANED TRACK. PER CMM 25-4
- [SDR AALA202502191066](https://openairdocs.org/sdr/AALA202502191066), Feb 18, 2025: DOOR. JAMMED. AIRCRAFT WAS NOT GROUNDED: COCKPIT DOOR IS BINDING ON THE TOP MAKING IT VERY DIFFICULT TO OPEN AND CLOSE THE DOOR. FOUND FORWARD LOWER CLOSE OUT CEILING PANEL N
- [SDR AALA202501295799](https://openairdocs.org/sdr/AALA202501295799), Jan 28, 2025: SKIN. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON LEFT SIDE OF FUSELAGE SKIN AT AFT LAVATORY SERVICE PANEL FROM STA 847 TO STA 867, FROM S24L TO S25L. ACCOMPLISHED REP
- [SDR AALA202501286800](https://openairdocs.org/sdr/AALA202501286800), Jan 25, 2025: LIGHT. CRACKED. AIRCRAFT IN BASE MAINTENANCE: 2EA BOTTOM EMERGENCY LIGHTS IS CRACKED LOCATED AT G7. REMOVE AND REPLACED 2EA (AALA202501286800), (AALA202501289075) FLOOR PROXIMI
- [SDR AALA202501289075](https://openairdocs.org/sdr/AALA202501289075), Jan 25, 2025: LIGHT. CRACKED. AIRCRAFT IN BASE MAINTENANCE: 2EA BOTTOM EMERGENCY LIGHTS IS CRACKED LOCATED AT G7. REMOVE AND REPLACED 2EA (AALA202501286800), (AALA202501289075) FLOOR PROXIMI
- [SDR AALA202501283437](https://openairdocs.org/sdr/AALA202501283437), Jan 24, 2025: ELEC CONNECTOR. LOOSE. AIRCRAFT IN BASE MAINTENANCE: EXTERIOR EMERGENCY LIGHT AFT OF L1 DOOR INOPERATIVE FOUND CONNECTOR 11074 LOOSE, RECONNECTED LOOSE CONNECTOR, OPERTIONAL CEHCK GOO
- [SDR AALA202501238278](https://openairdocs.org/sdr/AALA202501238278), Jan 22, 2025: VAPOR BARRIER. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK IN WING CENTER SECTION REAR SPAR VAPOR BARRIER AT STA 663.75, LBL 31.83. REPAIRED VAPOR BARRIER PER AARD 57-10-10-9.
- [SDR AALA202501245988](https://openairdocs.org/sdr/AALA202501245988), Jan 9, 2025: BEAM. EXCESS PLAY. AIRCRAFT WAS IN BASE MAINTENANCE: LEFT HAND WING LOWER TRANSLATING PANEL JUST INBOARD OF LEFT HAND PYLON INBOARD SUPPORT RODS 2 EACH HAVE PLAY AT LOWER ATTCH PO
- [SDR AALA202501295774](https://openairdocs.org/sdr/AALA202501295774), Jan 7, 2025: DOUBLER. CRACKED. AIRCRAFT IN BASE MAINTENANCE: LEFT WHEEL WELL INBOARD VAPOR BARRIER HAS 8 INCH CRACK. REMOVED DAMAGE EXISTING REPAIR AND VISUALLY INSPECTED AREA OF LEFT AND VAP
- [SDR AALA202501245089](https://openairdocs.org/sdr/AALA202501245089), Jan 6, 2025: ROLLER TRACK. GOUGED. AIRCRAFT IN BASE MAINTENANCE: FORWARD GALLEY SERVICE DOOR FUSELAGE CUTOUT AFT FRAME MOUNTED CENTER GUIDE ROLLER TRACK FITTING HAS GOUGES AT EDGES. REMOVED AND R
- [SDR AALA202501240906](https://openairdocs.org/sdr/AALA202501240906), Jan 4, 2025: FITTING. GOUGED. AIRCRAFT WAS IN BASE MAINTENANCE: FORWARD GALLEY SERVICE DOOR FUSELAGE CUTOUT AFT FRAME-MOUNTED LATCHTRACK FITTING HAS A GOUGE, LOWER SIDE. DOT 129-005. REMOVED
- [SDR AALA202501138403](https://openairdocs.org/sdr/AALA202501138403), Jan 4, 2025: DOOR FRAME. DETERIORATED. AIRCRAFT IN BASE MAINTENANCE: FORWARD ENTRY DOOR FUSELAGE CUTOUT SKIN AFT FRAME LOWER END LEVELING COMPOUND IS DETERIORATED. INSTALLED NEW LEVELING COMPOUND. PE
- [SDR AALA202407314170](https://openairdocs.org/sdr/AALA202407314170), Jul 30, 2024: GIRT BAR. DISLODGED. AIRCRAFT WAS NOT GROUNDED: PRIOR TO PUSH BACK FLIGHT ATTANDENT TRIED TO SECURE GIRT BAR IN RETAINING CLIP AND GIRT BAR END CAPS CAME OFF AND ARE NOW LOSE AND NO
- [SDR AALA202405205724](https://openairdocs.org/sdr/AALA202405205724), May 18, 2024: BATTERY PACK. NO TEST. AIRCRAFT WAS NOT GROUNDED: DURING PS CHECK FOUND FORWARD FLIGHT ATTENDANTS FLASHLIGHT INOPERATIVE. REPLACED FORWARD FLIGHT ATTENDANTS FLASHLIGHT BATTERY. PER AM
- [SDR AALA202404128976](https://openairdocs.org/sdr/AALA202404128976), Apr 10, 2024: TRANSMITTER. FAULTY. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FLAPS DID NOT EXTEND, NO FLAP MOVEMENT, NO FLAP INDICATION; AIRCRAFT LANDED SAFELY AT AUS. REPLACED RIG
- [SDR AALA202404118976](https://openairdocs.org/sdr/AALA202404118976), Apr 10, 2024: FLAP SYSTEM. FAULTED. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: FLAPS DID NOT EXTEND, NO FLAP MOVEMENT, NO FLAP INDICATION; AIRCRAFT LANDED SAFELY AT AUS. **SUPPLEMENT
- [SDR AALA202403283306](https://openairdocs.org/sdr/AALA202403283306), Mar 27, 2024: DOOR. BINDING. AIRCRAFT WAS NOIT GROUNDED: LEFT REAR LAVATORY DOOR STICKS THE DOOR STICKS ON THE BOTTOM ON THE LEFT SIDE. ADJUSTED AFT LEFT LAVATORY DOOR. PER CMM 25-40-64.
- [SDR AALA202307103781](https://openairdocs.org/sdr/AALA202307103781), Jul 7, 2023: DOOR. STICKING. AIRCRAFT WAS NOT GROUNDED: AFT RIGHT LAVATORY DOOR STICKS DIFFICULT TO OPEN/CLOSE. MAINTENANCE REPLACED LAVATORY DOOR PER CMM 25-40-65 AND ACCOMPLISHED A SATISF
- [SDR AALA202306055585](https://openairdocs.org/sdr/AALA202306055585), Jun 2, 2023: SLIDE. INCORRECT. AIRCRAFT WAS NOT GROUNDED: AT L2 DOOR GIRT BAR AND CLOSURE FOULED OR IMPROPER. REPLACED SLIDE ASSEMBLY PER AMM 25-66-01.
- [SDR AALA202305087280](https://openairdocs.org/sdr/AALA202305087280), May 5, 2023: SLIDE. OUT OF POSITION. AIRCRAFT WAS NOT GROUNDED: AFT LEFT SERVICE DOOR SLIDE ASSEMBLY FELL OUT AT CATERING TRUCK. REMOVED AND REPLACED AFT SLIDE ASSEMBLY AS REQUIRED.
- [SDR AALA202205098758](https://openairdocs.org/sdr/AALA202205098758), May 6, 2022: GIRT BAR. LOOSE. AIRCRAFT WAS NOT GROUNDED: AFT LEFT CABIN DOOR SLIDE GIRT BAR CLIP LOOSE ON DOOR. PERFROMED AFT LEFT DOOR SLIDE GIRT BAR REMOVAL, INSTALLED PER AMM 25-66-01. FO
- [SDR AALA202204205058](https://openairdocs.org/sdr/AALA202204205058), Apr 18, 2022: SHADE. MISSING. AIRCRAFT WAS NOT GROUNDED: WINDOW SHADE MISSING AT RIGHT FORWARD OVERWING EXIT DOOR. REMOVED AND REPLACED RIGHT FORWARD OVERWING EXIT DOOR WINDOW SHADE PER AMM 
- [SDR AALA202204206853](https://openairdocs.org/sdr/AALA202204206853), Apr 18, 2022: SHADE. DAMAGED. AIRCRAFT WAS NOT GROUNDED: WINDOW SHADE DAMAGED AND CRUMBLED AT LEFT AFT OVERWING EXIT DOOR. REMOVED AND REPLACED LEFT AFT OVER WING EXIT DOOR WINDOW SHADE PER 
- [SDR AALA202203107708](https://openairdocs.org/sdr/AALA202203107708), Feb 19, 2022: SHADE. DAMAGED. AIRCRAFT WAS NOT GROUNDED: WINDOW SHADE AT EMERGENCY EXIT SEAT 16F WILL NOT OPEN. **SUPPLEMENTAL REPORT FOR AALA202202237708: REMOVED AND REPLACED WINDOW SHADE 
- [SDR AALA202202237708](https://openairdocs.org/sdr/AALA202202237708), Feb 19, 2022: NONE. NONE. AIRCRAFT WAS NOT GROUNDED: WINDOW SHADE AT EMERGENCY EXIT SEAT 16F WILL NOT OPEN. **SUPPLEMENTAL REPORT WILL BE SUBMITTED.** (OPEN)
- [SDR AALA202201118156](https://openairdocs.org/sdr/AALA202201118156), Jan 10, 2022: COVER. OUT OF POSITION. AIRCRAFT WAS NOT GROUNDED: FORWARD L1 DOOR EXIT COVER FELL OFF. INSTALLED NEW EXIT SIGN AT L1 DOOR AMM 33-51-01.
- [SDR AALA202112144497](https://openairdocs.org/sdr/AALA202112144497), Dec 13, 2021: FLASHLIGHT ASSY. FAILED. AIRCRAFT IN BASE MAINTENANCE: FLASHLIGHT AT 1L DOOR INBD DOES NOT TEST. REPLACED FLASHLIGHT HOLDER ASSEMBLY WITH SERVICEABLE UNIT IAW AMM 25-64-00, OPS CHECK GO
- [SDR AALA202112142983](https://openairdocs.org/sdr/AALA202112142983), Dec 13, 2021: SWITCH. STICKS. AIRCRAFT IN BASE MAINTENANCE: LEFT AFT LAVATORY DOOR SWITCH STICKS. ADJUSTED DOOR SWITCH PER CMM 25-40-64.
- [SDR AALA202112068249](https://openairdocs.org/sdr/AALA202112068249), Dec 6, 2021: WINDOW FRAME. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK IN L1 WINDOW FRAME AT STA 211.8, WL 247, LBL 40, MEASURING L=0.062 IN. ACCOMPLISHED PERMANENT REINFORCING DOUBLER REPAIR IAW
- [SDR AALA202112062687](https://openairdocs.org/sdr/AALA202112062687), Dec 4, 2021: FLAP. DELAMINATED. AIRCRAFT WAS GROUNDED: TOP SIDE OF LEFT OUT BOARD AFT TRAILING EDGE FLAP DELAMINATED. REMOVED AND REPLACED LEFT OUT BOARD AFT FLAP PER AMM 27-51-21.
- [SDR AALA202112090506](https://openairdocs.org/sdr/AALA202112090506), Dec 1, 2021: RIB. CRACKED. AIRCRAFT IN BASE MAINTENANCE. RIGHT HAND HORIZONTLAL STABILIZER RIB CRACKED. LOCATED AT STABILIZER STA 92.70. REPLACED RIB PER SRM 51-10-02-0G.
- [SDR AALA202112066222](https://openairdocs.org/sdr/AALA202112066222), Dec 1, 2021: SKIN. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK IN LOWER SKIN OF HORIZONTAL STABILIZER BETWEEN STA 92.70 AND STA 101.90, MEASURING L=1.0 IN, W=0.003 IN. ACCOMPLISHED PERMAN
- [SDR AALA202112086674](https://openairdocs.org/sdr/AALA202112086674), Nov 30, 2021: RIB. CRACKED. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STABILIZER RIB CRACKED AT STABILIZER STA 92.70. REPAIRED RIB PER SRM 55-10-09-2R-4.
- [SDR AALA202112015682](https://openairdocs.org/sdr/AALA202112015682), Nov 29, 2021: NONE. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACKED CREASE ANGLE AT THE L1 DOOR CUT OUT AT BS 302 AND LBL 55. REPAIRED CREASE ANGLE PER SRM 53-10-15-2R.
- [SDR AALA202112019599](https://openairdocs.org/sdr/AALA202112019599), Nov 25, 2021: PRESSURE DECK. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACKED LEFT HAND PRESSURE DECK SKIN AT BS 663 BETWEEN LBL 31.83 AND LBL 40. REPAIRED PRESSURE DECK PER SRM 57-10-10-2R-3.
- [SDR AALA202111291199](https://openairdocs.org/sdr/AALA202111291199), Nov 25, 2021: PRESSURE DECK. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK FOUND IN RIGHT PRESSURE DECK LOCATED AT STA 663, AND RIGHT BUTT LINE 40.0 TO 45.64. INSTALLED DOUBLER AND FILLER REPAIR PER 
- [SDR AALA202112085564](https://openairdocs.org/sdr/AALA202112085564), Nov 24, 2021: SKIN. CRACKED. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND HORIZONTAL STABILIZER SKIN CRACKED AT STABILIZER STA 101.90 REPAIRED SKIN PER 51-10-01.
- [SDR AALA202111298774](https://openairdocs.org/sdr/AALA202111298774), Nov 22, 2021: SKIN. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK FOUND IN LOWER SKIN OF LEFT HORIZONTAL STABILIZER LOCATED AT STA 138.7, LEFT BUTT LINE 101.12. INSTALLED DOUBLER REPAIR PER 
- [SDR AALA202112085351](https://openairdocs.org/sdr/AALA202112085351), Nov 19, 2021: TRANSITION PANEL. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION, MEASURING L=0.075 IN, W=0.075 IN, D=0.006 IN, ON AFT CARGO COMPARTMENT LEFT HAND TRANSITION PANEL LOCATED BETWEEN STA 7
- [SDR AALA202111260659](https://openairdocs.org/sdr/AALA202111260659), Nov 19, 2021: SKIN PANEL. CRACKED. AIRCRAFT IN BASE MAINTENANCE: CRACK IN RIGHT HAND HORIZONTAL STABILIZER LOWER SKIN LOCATED AT STABILIZER STATION 129.5 TO STABILIZER STATION 138.7 AND STABILIZE

All 92: https://openairdocs.org/aircraft/N821NN/reports.md

## STCs that may be installed (OpenAirDocs) (786, 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 786: https://openairdocs.org/aircraft/N821NN/stcs.md

## Related

- Other Boeing 737-823 aircraft: https://openairdocs.org/model/boeing-737-823/aircraft.md
- The CFM International CFM56-7B24/3 series engine: https://openairdocs.org/engine/cfm-international-cfm56-7b24-3-series.md

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