# N794UA: 1997 Boeing 777-222

- Status: Valid registration
- Airframe: [Boeing 777-222](https://openairdocs.org/model/boeing-777-222) (registry code 1385219, 400 seats)
- Engine: [Pratt & Whitney PW4090](https://openairdocs.org/engine/pratt-whitney-pw4090) (registry code 51537)
- Data sheets: [TCDS T00001SE](https://openairdocs.org/tcds/T00001SE) (The Boeing Company), [TCDS E46NE](https://openairdocs.org/tcds/E46NE) (Pratt & Whitney RTX Corporation (formerly United Technologies Corporation)) (OpenAirDocs)
- Serial number: 26953
- Year built: 1997
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: November 17, 1997
- Certificate issued: April 1, 2013
- Expires: April 30, 2029
- Mode S code: AAC8A4
- Registered owner: [United Airlines Inc](https://openairdocs.org/faa-owner/UNITED%20AIRLINES%20INC)
- Location: [Chicago, IL](https://openairdocs.org/faa-place/IL/Chicago)
- Owner type: Corporation
- Owner's area on the map: 41.8813° N, 87.6375° W: Placed by OpenAirDocs at the center of ZIP code 60606, 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=794UA
- Page: https://openairdocs.org/aircraft/N794UA

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.

## ADs that may apply (OpenAirDocs): 220 in force

### Matched by airframe (Boeing 777-222)

- [AD 2026-19-04](https://openairdocs.org/ad/2026-19-04): Hydraulic Power · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Nov 2, 2026
- [AD 2026-15-02](https://openairdocs.org/ad/2026-15-02): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Sep 1, 2026
- [AD 2026-13-10](https://openairdocs.org/ad/2026-13-10): Navigation · Boeing 747-8 Series, 747-8F Series, 777-200 Series and 4 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 2025-21-02](https://openairdocs.org/ad/2025-21-02): Flight controls · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jan 2, 2026
- [AD 2025-15-09](https://openairdocs.org/ad/2025-15-09): Equipment/furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Aug 21, 2025
- [AD 2025-05-10](https://openairdocs.org/ad/2025-05-10): Flight Controls, Fuel, Landing Gear, Doors, Fuselage, Nacelles/Pylons, Stabilizers, Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective May 13, 2025
- [AD 2025-06-12](https://openairdocs.org/ad/2025-06-12): Auto flight · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective May 2, 2025
- [AD 2025-06-02](https://openairdocs.org/ad/2025-06-02): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Apr 23, 2025
- [AD 2025-02-07](https://openairdocs.org/ad/2025-02-07): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Mar 17, 2025
- [AD 2024-16-09](https://openairdocs.org/ad/2024-16-09): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300ER Series and 2 more. Effective Nov 12, 2024
- [AD 2024-15-07](https://openairdocs.org/ad/2024-15-07): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 15, 2024
- [AD 2024-04-09](https://openairdocs.org/ad/2024-04-09): Instruments · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Apr 23, 2024
- [AD 2024-01-07](https://openairdocs.org/ad/2024-01-07): Flight controls · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Mar 7, 2024
- [AD 2023-21-09](https://openairdocs.org/ad/2023-21-09): Flight controls · Boeing 777-200LR Series, 777-200 Series, 777-300 Series and 2 more. Effective Dec 18, 2023
- [AD 2023-17-14](https://openairdocs.org/ad/2023-17-14): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Sep 15, 2023
- [AD 2023-08-05](https://openairdocs.org/ad/2023-08-05): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jun 30, 2023
- [AD 2023-12-05](https://openairdocs.org/ad/2023-12-05): Navigation · Boeing 747-8F Series, 747-8 Series, 777-200 Series and 4 more. Effective Jun 21, 2023
- [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2023-03-04](https://openairdocs.org/ad/2023-03-04): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Apr 4, 2023
- [AD 2022-23-11](https://openairdocs.org/ad/2022-23-11): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jan 4, 2023
- [AD 2022-14-05](https://openairdocs.org/ad/2022-14-05): Flight Controls · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 12, 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 2022-11-05](https://openairdocs.org/ad/2022-11-05): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jul 20, 2022
- [AD 2022-06-07](https://openairdocs.org/ad/2022-06-07): Fuselage · Boeing 777-200 Series and 777-300 Series. Effective May 31, 2022
- [AD 2022-06-11](https://openairdocs.org/ad/2022-06-11): Nacelles/pylons · Boeing 777-200 Series and 777-300 Series. Effective Apr 15, 2022
- [AD 2022-06-10](https://openairdocs.org/ad/2022-06-10): Powerplant · Boeing 777-200 Series and 777-300 Series. Effective Apr 15, 2022
- [AD 2021-24-12](https://openairdocs.org/ad/2021-24-12): Fuel, Inert Gas System · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Feb 1, 2022
- [AD 2021-19-15](https://openairdocs.org/ad/2021-19-15): Equipment/furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jan 19, 2022
- [AD 2021-18-09](https://openairdocs.org/ad/2021-18-09): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 22, 2021
- [AD 2021-13-10](https://openairdocs.org/ad/2021-13-10): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Aug 19, 2021
- [AD 2020-22-10](https://openairdocs.org/ad/2020-22-10): Equipment/furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jan 14, 2021
- [AD 2020-18-12](https://openairdocs.org/ad/2020-18-12): Fuel · Boeing 777-200 Series, 777-200LR Series and 777-300 Series. Effective Oct 26, 2020
- [AD 2020-11-11](https://openairdocs.org/ad/2020-11-11): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jun 18, 2020
- [AD 2020-05-24](https://openairdocs.org/ad/2020-05-24): Engine exhaust · Boeing 777-200 Series. Effective Apr 24, 2020
- [AD 2020-04-19](https://openairdocs.org/ad/2020-04-19): Auto flight · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Apr 21, 2020
- [AD 2019-25-12](https://openairdocs.org/ad/2019-25-12): Oxygen · Boeing 777-200 Series and 777-300ER Series. Effective Jan 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 2019-16-13](https://openairdocs.org/ad/2019-16-13): Fuel · Boeing 777-200 Series and 777-300 Series. Effective Nov 14, 2019
- [AD 2019-11-02](https://openairdocs.org/ad/2019-11-02): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jul 5, 2019
- [AD 2018-26-05](https://openairdocs.org/ad/2018-26-05): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Feb 1, 2019
- [AD 2018-25-11](https://openairdocs.org/ad/2018-25-11): Engine exhaust · Boeing 777-200 Series and 777-300 Series. Effective Jan 18, 2019
- [AD 2018-23-12](https://openairdocs.org/ad/2018-23-12): Equipment/furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 180 more. Effective Dec 28, 2018
- [AD 2018-02-20](https://openairdocs.org/ad/2018-02-20): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Mar 16, 2018
- [AD 2017-11-14](https://openairdocs.org/ad/2017-11-14): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Jul 11, 2017
- [AD 2017-05-07](https://openairdocs.org/ad/2017-05-07): Engine Exhaust · Boeing 777-200 Series and 777-300 Series. Effective Apr 7, 2017
- [AD 2016-23-02](https://openairdocs.org/ad/2016-23-02): Nacelles/pylons · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Dec 30, 2016
- [AD 2016-21-05](https://openairdocs.org/ad/2016-21-05): Fuel Boost Pump · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Dec 19, 2016
- [AD 2016-17-10](https://openairdocs.org/ad/2016-17-10): Landing gear · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Sep 30, 2016
- [AD 2016-11-16](https://openairdocs.org/ad/2016-11-16): Engine exhaust · Boeing 777-200 Series and 777-300 Series. Effective Jul 22, 2016

### Matched by engine (Pratt & Whitney PW4090)

- [AD 2026-17-08](https://openairdocs.org/ad/2026-17-08): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074D, PW4077D, PW4084D and 2 more. Effective Oct 8, 2026
- [AD 2026-09-02](https://openairdocs.org/ad/2026-09-02): Turbine Engine Compressor Section · Pratt & Whitney RTX PW4074, PW4074D, PW4077 and 4 more. Effective Jun 26, 2026
- [AD 2023-22-02](https://openairdocs.org/ad/2023-22-02): Turbine Engine Combustion Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Dec 26, 2023
- [AD 2023-19-02](https://openairdocs.org/ad/2023-19-02): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Nov 7, 2023
- [AD 2022-07-13](https://openairdocs.org/ad/2022-07-13): Engine Oil Cooler · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective May 2, 2022
- [AD 2022-06-09](https://openairdocs.org/ad/2022-06-09): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Apr 15, 2022
- [AD 2017-05-05](https://openairdocs.org/ad/2017-05-05): Failure of the HPT 1st stage hub · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Apr 13, 2017
- [AD 2014-23-01](https://openairdocs.org/ad/2014-23-01): Second-stage HPT air seal · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Dec 26, 2014
- [AD 2012-18-17](https://openairdocs.org/ad/2012-18-17): HPC drum rotor disk assembly · Pratt & Whitney Division PW4052, PW4056, PW4060 and 16 more. Effective Oct 22, 2012
- [AD 2010-24-09](https://openairdocs.org/ad/2010-24-09): No. 3 bearing oil pressure tubes · Pratt & Whitney Division PW4050, PW4052, PW4056 and 34 more. Effective Dec 28, 2010
- [AD 2009-04-02](https://openairdocs.org/ad/2009-04-02): Front turbine hub · Pratt & Whitney Division PW4090 and PW4090-3. Effective Mar 24, 2009
- [AD 2007-04-26](https://openairdocs.org/ad/2007-04-26): High pressure compressor (HPC) exit brush seal packs · Pratt & Whitney Division PW4077D, PW4084D, PW4090 and 1 more. Effective Apr 2, 2007
- [AD 2006-22-13](https://openairdocs.org/ad/2006-22-13): Anti-rotation slots · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 5 more. Effective Dec 7, 2006
- [AD 2005-25-09](https://openairdocs.org/ad/2005-25-09): Engine manufacturer's time limits section (TLS) · Pratt & Whitney Division PW4050, PW4052, PW4056 and 26 more. Effective Jun 12, 2006
- [AD 2003-26-09](https://openairdocs.org/ad/2003-26-09): Engine High Pressure Turbine (HPT) Assembly Hardware · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Dec 3, 2003
- [AD 2003-13-11](https://openairdocs.org/ad/2003-13-11): High Pressure Compressor (HPC) Rear Case J Flange · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 3 more. Effective Jul 15, 2003
- [AD 2002-09-01](https://openairdocs.org/ad/2002-09-01): 15th Stage High Pressure Compressor (HPC) Disk · Pratt & Whitney Division PW4074D, PW4077D, PW4090 and 3 more. Effective Jun 6, 2002
- [AD 2001-20-02](https://openairdocs.org/ad/2001-20-02): 2nd Stage High Pressure Turbine Air Seal Assembly · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Nov 5, 2001

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

- [AD 2024-19-14](https://openairdocs.org/ad/2024-19-14) (historical): Fuel · Boeing 777-200 Series, 777-200LR Series, 777-300ER Series and 1 more. Effective Oct 17, 2024
- [AD 2024-15-03](https://openairdocs.org/ad/2024-15-03) (historical): Equipment/Furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 15, 2024
- [AD 2022-18-11](https://openairdocs.org/ad/2022-18-11) (historical): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 31, 2022
- [AD 2022-15-06](https://openairdocs.org/ad/2022-15-06) (historical): Flight controls · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Aug 18, 2022
- [AD 2022-03-05](https://openairdocs.org/ad/2022-03-05) (historical): Navigation · Boeing 747-8F Series, 747-8 Series, 777-200 Series and 4 more. Effective Jan 27, 2022
- [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 2019-16-05](https://openairdocs.org/ad/2019-16-05) (historical): Equipment/ Furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 8, 2019
- [AD 2019-01-08](https://openairdocs.org/ad/2019-01-08) (historical): Equipment/furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Mar 22, 2019
- [AD 2018-14-02](https://openairdocs.org/ad/2018-14-02) (historical): Equipment/furnishings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Aug 13, 2018
- [AD 2017-16-10](https://openairdocs.org/ad/2017-16-10) (historical): Fuselage and Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Sep 25, 2017
- [AD 2017-15-01](https://openairdocs.org/ad/2017-15-01) (historical): Auto flight · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Aug 25, 2017
- [AD 2016-18-02](https://openairdocs.org/ad/2016-18-02) (historical): Oxygen · Boeing 777-200 Series and 777-300ER Series. Effective Sep 15, 2016
- [AD 2016-09-01](https://openairdocs.org/ad/2016-09-01) (historical): Fuselage · Boeing 777-200 Series and 777-300 Series. Effective Jun 6, 2016
- [AD 2015-12-03](https://openairdocs.org/ad/2015-12-03) (historical): Flight Controls · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jul 21, 2015
- [AD 2014-20-11](https://openairdocs.org/ad/2014-20-11) (historical): Equipment/Furnishings · Airbus A330-201, A330-202, A330-203 and 42 more. Effective Oct 22, 2014
- [AD 2013-18-09](https://openairdocs.org/ad/2013-18-09) (historical): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Oct 3, 2013
- [AD 2013-11-14](https://openairdocs.org/ad/2013-11-14) (historical): Nacelles/pylons · Boeing 777-200 Series and 777-300 Series. Effective Jul 19, 2013
- [AD 2012-26-15](https://openairdocs.org/ad/2012-26-15) (historical): Navigation · Agusta AW139, A318-111, A318-112 and 71 more. Effective Jan 24, 2013
- [AD 2012-12-08](https://openairdocs.org/ad/2012-12-08) (historical): Main landing gear · Boeing 777-200 Series and 777-300 Series. Effective Jul 30, 2012
- [AD 2012-07-06](https://openairdocs.org/ad/2012-07-06) (historical): Flight Controls, Fuel, Landing Gear, Doors, Fuselage, Nacelles/Pylons, Stabilizers, Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective May 15, 2012
- [AD 2011-26-03](https://openairdocs.org/ad/2011-26-03) (historical): Wings · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jan 3, 2012
- [AD 2011-09-11](https://openairdocs.org/ad/2011-09-11) (historical): Nacelles/Pylons · Boeing 777-200 Series and 777-300 Series. Effective Jun 6, 2011
- [AD 2011-07-05](https://openairdocs.org/ad/2011-07-05) (historical): Equipment/Furnishings · Airbus A330-201, A330-202, A330-203 and 51 more. Effective May 6, 2011
- [AD 2010-26-01](https://openairdocs.org/ad/2010-26-01) (historical): Exhaust · Boeing 777-200 Series. Effective Jan 20, 2011
- [AD 2010-24-12](https://openairdocs.org/ad/2010-24-12) (historical): Wings · Boeing 777-200 Series, 777-300 Series and 777-300ER Series. Effective Jan 20, 2011
- [AD 2009-24-08](https://openairdocs.org/ad/2009-24-08) (historical): Fuselage · Boeing 777-200 Series, 777-200LR Series, 777-300 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 2008-19-04](https://openairdocs.org/ad/2008-19-04) (historical): Fuel circulation procedures · Boeing 777-200 Series and 777-300 Series. Effective Sep 29, 2008
- [AD 2007-26-05](https://openairdocs.org/ad/2007-26-05) (historical): Detect and correct a cracked actuator fitting · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jan 22, 2008
- [AD 2007-17-12](https://openairdocs.org/ad/2007-17-12) (historical): Drive mechanism of the horizontal stabilizer · Boeing 777-200 Series, 777-200LR, 777-300 Series and 1 more. Effective Oct 2, 2007
- [AD 2007-13-05](https://openairdocs.org/ad/2007-13-05) (historical): Right and left elevators · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 1 more. Effective Jul 25, 2007
- [AD 2007-07-05](https://openairdocs.org/ad/2007-07-05) (historical): Left and right air supply and cabin pressure controllers (ASCPCs) · Boeing 777-200 Series, 777-200LR, 777-300 Series and 1 more. Effective Apr 18, 2007
- [AD 2006-26-06](https://openairdocs.org/ad/2006-26-06) (historical): Outer V-blades of the thrust reverser · Boeing 777-200 Series and 777-300 Series. Effective Jan 11, 2007
- [AD 2006-19-12](https://openairdocs.org/ad/2006-19-12) (historical): Engine struts investigation · Boeing 777-200 Series and 777-300 Series. Effective Oct 30, 2006
- [AD 2006-20-51](https://openairdocs.org/ad/2006-20-51) (historical): Airplane Flight Manual to prohibit takeoffs at less than full-rated thrust · Boeing 777-200 Series and 777-200LR. Effective Oct 16, 2006
- [AD 2005-10-03](https://openairdocs.org/ad/2005-10-03) (historical): Air data inertial reference unit (ADIRU) · Boeing 777-200 Series and 777-300 Series. Effective Jun 15, 2005
- [AD 2000-19-08](https://openairdocs.org/ad/2000-19-08) (historical): Outboard Leading Edge Slats · Boeing 777-200 Series, 777-200LR Series, 777-300 Series and 2 more. Effective Oct 10, 2000
- [AD 99-25-13 C1](https://openairdocs.org/ad/99-25-13-C1) (historical): Limitations Section - AFM - Backup Generator Having Sheared Shaft · Boeing 777-200 Series and 777-300 Series. Effective Dec 23, 1999
- [AD 99-25-13](https://openairdocs.org/ad/99-25-13) (historical): Limitations Section - Airplane Flight Manual - Backup Generator · Boeing 777-200 Series and 777-300 Series. Effective Dec 23, 1999
- [AD 96-20-01](https://openairdocs.org/ad/96-20-01) (historical): Fire Extinguishing Switch Modules · Boeing 777-200 Series. Effective Oct 25, 1996
- [AD 2021-05-51](https://openairdocs.org/ad/2021-05-51) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Mar 24, 2021
- [AD 2019-03-01](https://openairdocs.org/ad/2019-03-01) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Mar 22, 2019
- [AD 2018-21-11](https://openairdocs.org/ad/2018-21-11) (historical): Turbine Engine Compressor Section · Pratt & Whitney Division PW4074D, PW4077D, PW4084D and 2 more. Effective Dec 5, 2018
- [AD 2018-02-10](https://openairdocs.org/ad/2018-02-10) (historical): Turbine Engine Combustion Section · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Feb 26, 2018
- [AD 2013-15-09](https://openairdocs.org/ad/2013-15-09) (historical): HPT air seals · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 4 more. Effective Sep 17, 2013
- [AD 2010-18-13](https://openairdocs.org/ad/2010-18-13) (historical): Blade · Pratt & Whitney Division PW4052, PW4056, PW4060 and 16 more. Effective Oct 18, 2010
- [AD 2006-17-08](https://openairdocs.org/ad/2006-17-08) (historical): HPC exit inner and outer brush seal assembly · Pratt & Whitney Division PW4077D, PW4084D, PW4090 and 1 more. Effective Sep 27, 2006
- [AD 2003-22-09](https://openairdocs.org/ad/2003-22-09) (historical): Turbine exhaust case (TEC) · Pratt & Whitney Division PW4074, PW4074D, PW4077 and 7 more. Effective Dec 3, 2003
- [AD 2002-03-08](https://openairdocs.org/ad/2002-03-08) (historical): Time Limits Section of Engine Manuals (EM's) · Pratt & Whitney Division PW4050, PW4052, PW4056 and 25 more. Effective Apr 16, 2002
- [AD 2000-12-02](https://openairdocs.org/ad/2000-12-02) (historical): Critical Life-Limited Part · Pratt & Whitney Division PW4050, PW4052, PW4056 and 24 more. Effective Sep 13, 2000

All 271: https://openairdocs.org/aircraft/N794UA/ads.md

## Information bulletins (advisory) (12 in force)

- [SAIB AIR-22-09R1](https://openairdocs.org/saib/AIR-22-09R1): AUTOPILOT FLIGHT DIRECTOR SYSTEM: ALT HOLD Engaged on Takeoff on Boeing Model 777/787 common fleets.. Issued May 17, 2022
- [SAIB AIR-20-19](https://openairdocs.org/saib/AIR-20-19): Flight Management Computing Software System. Issued Nov 16, 2020
- [SAIB NM-20-11](https://openairdocs.org/saib/NM-20-11): Autopilot System. Issued Jun 11, 2020
- [SAIB NM-20-07](https://openairdocs.org/saib/NM-20-07): Navigation - Glideslope System. Issued Apr 16, 2020
- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019
- [SAIB NM-17-15](https://openairdocs.org/saib/NM-17-15): Equipment/Furnishings - Inflatable Airbag Assembly. Issued Jun 6, 2017
- [SAIB NM-17-10](https://openairdocs.org/saib/NM-17-10): Maintenance Practices. Issued Apr 13, 2017
- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014
- [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-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 NE-16-01R1](https://openairdocs.org/saib/NE-16-01R1): Turbine Section. Issued Jan 14, 2016
- [SAIB NE-13-31](https://openairdocs.org/saib/NE-13-31): Turbine Engine Oil System  Scavenge Oil Tube Coking and Proper Cleaning at Overhaul. Issued May 9, 2013
- [SAIB AIR-22-09](https://openairdocs.org/saib/AIR-22-09) (historical): AUTOPILOT FLIGHT DIRECTOR SYSTEM: ALT HOLD Engaged on Takeoff on Boeing Model 777/787 common fleets.. Issued Apr 12, 2022
- [SAIB NE-16-01](https://openairdocs.org/saib/NE-16-01) (historical): Turbine Section. Issued Oct 5, 2015

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB DCA10FA064](https://openairdocs.org/ntsb/DCA10FA064), May 25, 2010: Boeing 777 (N794UA), Southern Tip of Greenland, Denmark, no damage. Probable cause: An inadvertent encounter with unforecast turbulence in cruise flight.

## FAA accident and incident reports (1)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Accident 20100525034839A](https://openairdocs.org/incident/20100525034839A), May 25, 2010: Boeing 777-222 (N794UA), No damage. UA935 operated lhr to lax on 05/25/2010. Dispatcher's comments on the flight plan release indicated "forecast moderate enroute turbulence from 69W - 77W…

## Service difficulty reports (147, 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 CALA2026101220261](https://openairdocs.org/sdr/CALA2026101220261), Oct 9, 2026: A/C PACK. FAULTED. PACK MODE L EICAS. COULD SMELL ACRID ODOR AND HEAT. 4 MIN LATER RECEIVED EICAS MESSGAE. APPLED MEL 2152S, CONDITIONAL INSPECTION TASK 05-51-58-800-801-C3. NO OD
- [SDR CALA2026051116115](https://openairdocs.org/sdr/CALA2026051116115), May 9, 2026: RELAY. FAULTED. AHM DETECTED MMSG {21-11121 *RELAY (CHILLER BOOST FAN) IN P210 IS NOT IN COMMANDED POSITION* AFTER WORK WAS ACCOMPLISHED DUE TO A SMOKE ODOR CONDITION. REF FIM 
- [SDR CALA2026051116107](https://openairdocs.org/sdr/CALA2026051116107), May 6, 2026: FMU. FAULTY. LEFT ENG FUEL VALVE MESSAGE. LEFT ENGINE: MESSAGE NOT LATCH RESET AND RAN ENG BLOW OUT FUMES, STARTED ENG NORMAL PARAMETERS NORMAL START, AT SHUT DOWN SMOKE ON 
- [SDR CALA2026042815762](https://openairdocs.org/sdr/CALA2026042815762), Apr 25, 2026: UNKNOWN. ODOR. SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW. REF AMM 05-51-58-800-801-C3, INITIAL INSPECTION AND OPERATIONAL C
- [SDR CALA2026050415934](https://openairdocs.org/sdr/CALA2026050415934), Apr 24, 2026: APU. FAULTED. ON TAXI OUT SMOKE STARTED TO COME INTO THE COCKPIT. AFTER THAT THE LT PACK FAILED AND RAN THE CHECKLISTS. SMOKE CLEARED ONCE LT PACK WAS SECURED. FLIGHT CREW DE
- [SDR CALA2026042915810](https://openairdocs.org/sdr/CALA2026042915810), Apr 24, 2026: DUCT. SPLIT. SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN INCIDENT REPORTED BY THE CREW.SMOKE ODOR CONDITIONAL INSP REQUIRED PER AMM 05-51-XX DUE TO AN IN
- [SDR CALA2025082007966](https://openairdocs.org/sdr/CALA2025082007966), Aug 19, 2025: UNKNOWN. UNKNOWN. LOWER CREW REST SMELLS LIKE KEROSINE OUTFLOW PAX FLOW AIR IS RUNING NO EVIDENCE SMELLS OK TO CONTINUE
- [SDR CALA2025070306195](https://openairdocs.org/sdr/CALA2025070306195), Jul 2, 2025: SKIN. CRACKED. DOOR 4L DAMAGE REINSPECTION - ECRA 5210-03387 REVISED TO INCLUDE AN INSPECTION REQUIREMENT PRIOR TO EACH FLIGHT. REF ECRA 5210-03387 REV A. STEPS 11-13 FOR REIN
- [SDR CALA2025070206138](https://openairdocs.org/sdr/CALA2025070206138), Jul 1, 2025: BATTERY PACK. MALFUNCTIONED. R4 DOOR AFT EMERGENCY LIGHT POWER SUPPLY M33409 BATTERY PACK FOUND MALFUNCTIONED. REPLACED R4 DOOR AFT EMERGENCY LIGHT PO WER SUPPLY M33409 BATTERY PACK AND PER
- [SDR CALA2025070206137](https://openairdocs.org/sdr/CALA2025070206137), Jul 1, 2025: POWER SUPPLY. MALFUNCTIONED. R3 DOOR FWD EMERGENCY LIGHT BATTERY PACK M33404 FOUND MALFUNCTIONED. REPLACED R3 DOOR FWD EMERGENCY LIGHT PO WER SUPPLY M33404 & BATTERY PACK THE PERFORMED NEW 
- [SDR CALA2025070206136](https://openairdocs.org/sdr/CALA2025070206136), Jul 1, 2025: BATTERY PACK. MALFUNCTIONED. R3 DOOR AFT EMERGENCY LIGHT BATTERY PACK M33401 FOUND MALFUNCTIONED. REPLACED R3 DOOR AFT EMERGENCY LIGHT PO WER SUPPLY M33401 & BATTERY PACK,THE PERFORMED NEW 
- [SDR CALA2025062706003](https://openairdocs.org/sdr/CALA2025062706003), Jun 25, 2025: BATTERY. INOPERATIVE. R1 DOOR M33094 EMERGENCY POWER SUPPLY BATTERY PACK FOUND MALFUNCTION. PERFORMED BY EMP V903218, IDT BY EMP V905467. REPLACE R1 DOOR M33094 EMERGENCY POWER SUPPL
- [SDR CALA2024062601896](https://openairdocs.org/sdr/CALA2024062601896), Jun 10, 2024: HYDRAULIC SYSTEM. READS LOW. HYD QTY LOW C EICAS ADVISORY CENTER HYDRAULIC SYSTEM LOW RESERVOIR QUANTITY. HYDRAULIC INTERFACE MODULE. SERVICED HYD SYSTEM TO FULL IAW AMM 12-12-01-610-803.
- [SDR CALA2024061101773](https://openairdocs.org/sdr/CALA2024061101773), Jun 10, 2024: O-RING. DAMAGED. HYD LEAK COMING FOR AFT ELECTRIC HYD PUMP IN RT WHEEL WELL. REMOVED WASHER AND REPLACED DAMAGED O-RING IAW AMM 20-10-19-400-801, ACCOMPLISHED LEAK CHECK NO LEAK
- [SDR CALA2024021500432](https://openairdocs.org/sdr/CALA2024021500432), Feb 2, 2024: OIL SYSTEM. LEAKING. ACFT ABORT TAKEOFF FOUND LH ENGINE OIL QTY DROPPED TO 5 QTS, ACFT RETURN TO GATE FOUND LARGE ENGINE OIL LEAKAGE THE LH ENGINE OIL LEAKING PICTURE ATTACHED. FLAG
- [SDR CALA2024020300309](https://openairdocs.org/sdr/CALA2024020300309), Feb 1, 2024: FILTER. ODOR. SMOKE AND FUMES IN COCKP IT AND CABIN IN FLIGHT DUE TO SMOKE /ODOR FOLLOW AMM 05-51-58-800-801-C3 SMOKE/ODOR IN THE FLIGHT DECK/CABIN - CONDITIONAL INSPECTION U
- [SDR CALA2023122103708](https://openairdocs.org/sdr/CALA2023122103708), Dec 20, 2023: BATTERY PACK. INOPERATIVE. CABIN L3 DOOR EMERGENCY EXIT SIGN BATTERY PACK CAPACITY CHECK FAILED REF HAECO NON-ROUTINE NO.:9474247, CABIN L3 DOOR EMERGENCY EXIT SIGN BATTERY M33406 REPLACE
- [SDR CALA2023122003696](https://openairdocs.org/sdr/CALA2023122003696), Dec 19, 2023: BATTERY. INOPERATIVE. LLAR EMERGENCY LIGHT BATTERY PACK FOUND INOP DURING TEST THE BACKUP LIGHTS. REPLACED AND INSTALLATION TEST OF LLAR EMERGENCY LIGHT BATTERY PERFORMED,RESULT NORM
- [SDR CALA2023122003695](https://openairdocs.org/sdr/CALA2023122003695), Dec 19, 2023: BATTERY. INOPERATIVE. LLAR EMERGENCY LIGHT BATTERY PACK FOUND INOP DURING TEST THE BACKUP LIGHTS REF HAECO NON-ROUTINE NO.:9474241, REPLACED AND INSTALLATION TEST OF LLAR EMERGENCY L
- [SDR CALA2023121503652](https://openairdocs.org/sdr/CALA2023121503652), Dec 14, 2023: BATTERY. FAILED. CABIN R4 DOOR EMERGENCY LIGHT EXIT SIGN FAILED TO OPERATION REF HAECO NON-ROUTINE NO.:9474029, CABIN R4 DOOR EMERGENCY LIGHT BATTERY M33408 REPLACED AND INSTALL
- [SDR CALA2023100602954](https://openairdocs.org/sdr/CALA2023100602954), Oct 2, 2023: ACTUATOR. FAULTY. MLG STEERING EICAS ADVISORY EITHER MLG AFT AXLE IS INDICATING- NOT LOCKED. LVL 1 FOR MLG STEERING CONTROL ACT RT IS UNSERVICEABLE, MSG 32-63020. MGSCU REPLACED.
- [SDR CALA2023083002657](https://openairdocs.org/sdr/CALA2023083002657), Aug 26, 2023: PUMP. LOW PRESSURE. HYD QTY LOW R EICAS ADVISORY RIGHT HYDRAULIC SYSTEM RESERVOIR QUANTITY LOW. QTY < .4 FIM TASK REF : 29-11 TASK 827 CMC MSG# 2910330 FLIGHT STATUS: A INTE
- [SDR CALA2022093002574](https://openairdocs.org/sdr/CALA2022093002574), Sep 29, 2022: BATTERY. NONE. B777-33-3-7019 DR 2 LH EMER LT BATTERY PACKS TEST FAIL. TRANSFER REF. NON-ROUTINE WO.1097710 AND ORIGINATED BY EMP V902113. DR L2 EMER LT BATTERY PACK M33099 RE
- [SDR CALA2022093002573](https://openairdocs.org/sdr/CALA2022093002573), Sep 29, 2022: BATTERY. NONE. B777-33-3-7025 LLAR BACKUP LIGHTS BATTERY PACK DEEP CYCLE TEST FAIL. TRANSFER REF. NON-ROUTINE WO.1097714 AND ORIGINATED BY EMP V902113. LLAR BACKUP EMER LIGHT 
- [SDR CALA2022093002572](https://openairdocs.org/sdr/CALA2022093002572), Sep 29, 2022: BATTERY. NONE. B777-33-3-7019 DR3 LH EMER LT BATTERY PACKS TEST FAIL. TRANSFER REF. NON-ROUTINE WO.1097703 AND ORIGINATED BY EMP V902113. DR L3 EMER LT BATTERY PACK M33406 REP
- [SDR CALA2022052501346](https://openairdocs.org/sdr/CALA2022052501346), May 25, 2022: EPAS. FAILED. DOOR 1R EPAS UNIT DOES NOT FLASH GREEN WHEN ARMED. REPLACED EPAS BATTERY PACK AT DOOR 1R PER TASK 52-11-20-400-813. SYSTEM OP''S CHECKED GOOD. ROTABLE PARTS CHA
- [SDR CALA2022052501345](https://openairdocs.org/sdr/CALA2022052501345), May 25, 2022: BATTERY PACK. FAILED. DOOR 2R EPAS UNIT DOES NOT FLASH GREEN WHEN ARMED. REPLACED DOOR 2R EPAS BATTERY PACK UNIT PER TASK IPC REFERENCE # 52-38-00 52-11-20-400-813. SYSTEM OP''S CHEC
- [SDR CALA2022052501344](https://openairdocs.org/sdr/CALA2022052501344), May 25, 2022: LIGHT. FAILED. REF LOGPAGE 8601878 CORRECTIVE ACTION FOR EMERGENCY EXIT LIGHTING SYSTEM OPERATIONAL CHECK - R1 DOOR AND RH POLARIS SEAT EMERGENCY LIGHTS DID NOT ILLUMINATE DUR
- [SDR CALA2021092801703](https://openairdocs.org/sdr/CALA2021092801703), Sep 27, 2021: BATTERY PACK. NONE. EMERGENCY LIGHT TEST FOUND M33098 EMERGENCY LIGHT BATTERY POOR CAPACITY REF HAECO NON-ROUTINE NO.9458595 - ORIGINATED BY EMP V905449 SPEC NO.B777-33-3-7019 PERF
- [SDR CALA2021082301423](https://openairdocs.org/sdr/CALA2021082301423), Aug 23, 2021: BATTERY. INOPERATIVE. EMERGENCY LIGHT BATTERY PACKS ABOVE L1 DOOR (M33093 AND M33424) INOP. REPLACED BATTERY PACKS ABOVE L1 DOOR M33093 & M33424 REF AMM 33-51-06-960-802. OP CHEC
- [SDR CALA2020020300323](https://openairdocs.org/sdr/CALA2020020300323), Feb 3, 2020: FMC. INOPERATIVE. FMC FMC DATA ON CDU IS MISSING OR INCORRECT LEFT CDU UNABLE TO ACCESS FMC ON LEFT CDU. NO FMC PROMPT ON MENU PAGE 1L. REPLACED CDU REF AMM 34-61-02-020-801 REPL
- [SDR CALA2019111601984](https://openairdocs.org/sdr/CALA2019111601984), Nov 14, 2019: SKIN. CHAFED. VERTICAL STABILIZER R/H ROOT PNL 322AR 321AR TO FUSELAGE INTERFA CE CROWN SKIN FOUND CHAFING FROM BSTA2129 TO BSTA2150. REFER NON -ROUTINE NO.9488790 SPEC NO. B
- [SDR CALA2019111601983](https://openairdocs.org/sdr/CALA2019111601983), Nov 13, 2019: SKIN. CHAFED. VERTICAL STABILIZER L/H ROOT PNL 322AL 321AL TO FUSELAGE INTERFA CE CROWN SHIN FOUND CHAFING FROM BSTA2110 TO BSTA2150. REFER NON -ROUTINE NO.9488791 - ORIGINAT
- [SDR CALA2019111601985](https://openairdocs.org/sdr/CALA2019111601985), Nov 13, 2019: SKIN. DAMAGED. FWD CGO DOOR AFT LOWER CORNER FND EXISTING REINFORCE REPAIR. REF ER NON-ROUTINE NO.9488927 EA5100-023 45E OP19. REMOVED THE EXISTING REPAIR AS PER SRM 51-40-02 
- [SDR CALA2018073001698](https://openairdocs.org/sdr/CALA2018073001698), Jul 24, 2018: LIGHT. BROKEN. M/D LLAR DOOR FWD 1EA LWR EMER LIGHT FOUND BROKEN. REPLACED M/D LLAR DOOR FWD LWR EMER LIGHT & C/OUT OP TEST FOUND SAT IS AS PER AMM 33-51-05-960-801 REV83.
- [SDR CALA2018073001697](https://openairdocs.org/sdr/CALA2018073001697), Jul 24, 2018: LIGHT. BROKEN. M/D R1 DOOR 2EA EXIT IDENT FOUND BROKEN. REPLACED M/D R1 DOOR EXIT IDENT LT & C/OUT OP TEST FOUND SATIS A S PER AMM 33-51-01-960-802 REV83.
- [SDR CALA2018073001702](https://openairdocs.org/sdr/CALA2018073001702), Jul 24, 2018: BATTERY. LOW. M/D R3 DOOR 2EA EMER LT POWER PACKS (M33401 & M33404) FOUND LOW CAPACITY. REPLACED M/D R3 DOOR 2EA EMER LT POWER PACKS (M33401 & M33404) & C/OUT OP TEST FOUND S
- [SDR CALA2018073001701](https://openairdocs.org/sdr/CALA2018073001701), Jul 24, 2018: LIGHT. BROKEN. M/D A & B ZONE PARTITION TTL: 4EA LWR EMER LT FOUND BROKEN. REPLACED M/D A&B ZONE PARTITION LWR EMER LT & C/OUT OP TEST FOUND SATIS AS PER AMM 33-51-05-960-801 
- [SDR CALA2018073001700](https://openairdocs.org/sdr/CALA2018073001700), Jul 24, 2018: BATTERY. LOW. M/D R4 DOOR 1EA E MER LT POWER PACK (M33408) FOUND LOW CAPACITY. REPLACED M/D R4 DOOR EMER LT POWER PACK (M33408) & C/OUT ''OP'' TE ST FOUND ''SATIS'' AS PER AM
- [SDR CALA2018073001699](https://openairdocs.org/sdr/CALA2018073001699), Jul 24, 2018: BATTERY. LOW. M/D L2 DOOR 1EA EMER LT POWER PACK (M33096) FOUND LOW CAPACITY. REPLACED M/D L2 DOOR EMER LT POWER PACK (M33400) & C/OUT OP TEST FOUND SATIS AS PER AMM 33-51-06
- [SDR CALA2018073001696](https://openairdocs.org/sdr/CALA2018073001696), Jul 24, 2018: BATTERY. LOW. M/D L3 DOOR 1EA EMER LT POWER PACK (M33400) FOUND LOW CAPACITY. REPLACED M/D L3 DOOR EMER LT POWER PACK (M33400) & C/OUT OP TEST FOUND SATIS AS PER AMM 33-51-06
- [SDR CALA2018020500488](https://openairdocs.org/sdr/CALA2018020500488), Feb 5, 2018: BATTERY. DISCHARGED. EMERGENCY FLASHLIGHT AT DOOR 1L INOP. REPLACED BATTERY, CKS OK.
- [SDR CALA2017103003861](https://openairdocs.org/sdr/CALA2017103003861), Oct 30, 2017: LIGHT. INOPERATIVE. COCKPIT EMERGENCY DOME LIGHT BURNED OUT. RELAMPED EMERGENCY DOME LIGHT CHECK OK, REF AMM 33-51-07-960-801.
- [SDR CALA2017012900183](https://openairdocs.org/sdr/CALA2017012900183), Jan 29, 2017: CDU. FAULTY. BOTH FMC'S HAVE FAILED OR FMC SELECTOR IS IN L WITH THE LEFT FMC FAILED OR IS IN R WITH THE RIGHT FMC FAILED. RIGHT CONTROL DISPLAY UNIT (CDU) FAULT. EMERGENCY 
- [SDR CALA2016120901053](https://openairdocs.org/sdr/CALA2016120901053), Dec 9, 2016: LAMP. INOPERATIVE. EXTERIOR EMERGENCY LIGHT AT DOOR 4L IS INOPERATIVE. REPLACED THE LAMP IAW AMM 33-51-04. O PS CHECKED GOOD.
- [SDR CALA2016112500958](https://openairdocs.org/sdr/CALA2016112500958), Nov 22, 2016: SKIN. DENTED. CATERING REPORTED DOOR R2 LOWER AFT CORNER HAS A DENT WITH A SCRATCH. DIMENSIONS ARE 3.94 X .0723 A O VERY IS GREATER THAN 30. A OVER Y IS 54, WILL REQUIRE REIN
- [SDR CALA2016100500723](https://openairdocs.org/sdr/CALA2016100500723), Oct 5, 2016: SWITCH. FAILED. AFTER TAKE OFF, UNABLE TO PRESSURIZE AIRCRAFT. OUTFLOW VALVE AFT EICAS ADVISORY AUTO CONTROL ON AFT OUTFLOW VALVE FAILED OR MANUAL MODE FOR AFT OUTFLOW VALVE SE
- [SDR CALA2014060591209](https://openairdocs.org/sdr/CALA2014060591209), Jun 3, 2014: OXYGEN MASK. FAULTY. HOT MIC AT CAPTAIN`S BOOM. SUSPECT O2 MASK SYS. REINSTALL O2 MASK SYS & CHECK ALL PUSH TO TALK SWITCH. HOT MIC RETURN TO NORMAL.
- [SDR CALA2014051691026](https://openairdocs.org/sdr/CALA2014051691026), May 16, 2014: LIGHT. INOPERATIVE. EXIT PATH LIGHTING LENS MISSING & BULB INOPERATIVE, SHATTERED, FROM VIDEO CONSOLE - OTTOMAN BETWEEN SEATS 6H & 7H. REPLACED BULB & LENS, OPERATIONS CHECKED GOOD
- [SDR CALA2013121293619](https://openairdocs.org/sdr/CALA2013121293619), Dec 12, 2013: STARTER. FAULTY. APU CONTROL STATUS MESSAGE. REPLACED APU STARTER MOTOR IAW MM. FOUR GOOD STARTS, NO MESSAGES.

All 147: https://openairdocs.org/aircraft/N794UA/reports.md

## STCs that may be installed (OpenAirDocs) (392, 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 777-222)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [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 ST04738NY](https://openairdocs.org/stc/ST04738NY): Installation of Dual SpaceX Starlink Aero Terminals. Space Exploration Technologies Corp./Starlink Aviation
- [STC ST04739NY](https://openairdocs.org/stc/ST04739NY): Installation of Dual SpaceX Starlink Aviation System. Space Exploration Technologies Corp./Starlink Aviation
- [STC ST04474NY](https://openairdocs.org/stc/ST04474NY): Activation of Wireless Local Area Network (WLAN) system. Jet Aviation AG
- [STC ST09851DS](https://openairdocs.org/stc/ST09851DS): Panasonic Server and Starlink to IFE & AID Interface Installation. United Airlines
- [STC ST00750DE](https://openairdocs.org/stc/ST00750DE): Installation of an International Communications Group (ICG) Iridium Communication (SATCOM) system. L2 Aviation
- [STC ST01849SE](https://openairdocs.org/stc/ST01849SE): Installation of an interior reconfiguration on Boeing Model 777-200 series airplanes. B/E Aerospace, Inc. - FSI
- [STC ST02073SE](https://openairdocs.org/stc/ST02073SE): Fabrication of a LiteAir window plug assembly. LiteAir Aviation Products Inc
- [STC ST02312AT-D](https://openairdocs.org/stc/ST02312AT-D): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST02487AT-D](https://openairdocs.org/stc/ST02487AT-D): Installation of Flight Attendant Rest Seats and Door 3 Centerline Lavatories. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03380AT-D](https://openairdocs.org/stc/ST03380AT-D): Cabin re-configuration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03553AT-D](https://openairdocs.org/stc/ST03553AT-D): Installation of Aircraft Cabin Systems (ACS) 32 inch LCD Monitors. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03661AT-D](https://openairdocs.org/stc/ST03661AT-D): Installation of a Triple Seat in the Center Row 45 of a Boeing 777-200. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03664AT-D](https://openairdocs.org/stc/ST03664AT-D): Installation of a Cell Modem in a Boeing 777-200, for Operation on the Ground Only. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03961AT](https://openairdocs.org/stc/ST03961AT): Installation of TIMCO Aerosystems lavatories and bi-fold doors in the 2A-LC and 2A-RC lavatories. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04144AT](https://openairdocs.org/stc/ST04144AT): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04275AT](https://openairdocs.org/stc/ST04275AT): Installation of a HAECO cabin interior reconfiguration kit. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04357AT](https://openairdocs.org/stc/ST04357AT): Cabin 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 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 ST12322AC](https://openairdocs.org/stc/ST12322AC): Installation of a Thales Aviator 200S satellite communication system. L2 Aviation
- [STC ST02905NY](https://openairdocs.org/stc/ST02905NY): Installation of a Panasonic Avionics Corporation Global Communications Suite Antenna. Delta Engineering Corporation
- [STC ST03161NY](https://openairdocs.org/stc/ST03161NY): Installation of a Panasonic Avionics Corporation Global Communications Suite (GCS). Delta Engineering Corporation
- [STC ST04266CH](https://openairdocs.org/stc/ST04266CH): Modify the aircraft interior to match standard passanger configurations. Atin OOH LLC
- [STC ST03290NY-D](https://openairdocs.org/stc/ST03290NY-D): Wireless Broadband System Installation. Anuvu IFC Corporation
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF
- [STC ST04756NY](https://openairdocs.org/stc/ST04756NY): Installation of Dual Cockpit USB Charger. Eirtech Aviation Services Inc
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST03178NY](https://openairdocs.org/stc/ST03178NY): Installation of a Panasonic In-Flight Entertainment System. Delta Engineering Corporation
- [STC ST11387DS](https://openairdocs.org/stc/ST11387DS): Installation of an Avionica, avWiFi System with Cybersecurity Compliance and Hosted Applications Functionality. Archeion Holdings L.L.C
- [STC ST01253SE](https://openairdocs.org/stc/ST01253SE): Installation of interior kit for a floor mounted stowage unit. Safran Cabin Inc
- [STC ST01976SE](https://openairdocs.org/stc/ST01976SE): Installation of interior components. Safran Cabin Inc
- [STC ST02144LA](https://openairdocs.org/stc/ST02144LA): Modification for a pantry installation. Safran Cabin Inc
- [STC ST02224NY-D](https://openairdocs.org/stc/ST02224NY-D): Installation of a Heath Tecna Cabin Interior. Safran Cabin Inc
- [STC ST02297SE](https://openairdocs.org/stc/ST02297SE): Interior Reconfiguration. Safran Cabin Inc
- [STC ST02630NY](https://openairdocs.org/stc/ST02630NY): Installation of a Heath Tecna Cabin Interior Components. Safran Cabin Inc
- [STC ST09842DS](https://openairdocs.org/stc/ST09842DS): Cabin interior reconfiguration. United Airlines
- [STC ST04566AT](https://openairdocs.org/stc/ST04566AT): Replacement of the AY01-BEA-TSPCU-LRU-01 Touch Screen Power Control Unit (TSPCU) with the AV2232 to control the premium cabin seats position. B/E Aerospace, Inc Aftermarket Services (B/E-AS)
- [STC ST11037SC](https://openairdocs.org/stc/ST11037SC): Satellite communication system upgrade. L2 Aviation
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST02454SE](https://openairdocs.org/stc/ST02454SE): Installation of an interior reconfiguration. B/E Aerospace Inc. - FSI
- [STC ST02463SE](https://openairdocs.org/stc/ST02463SE): Installation of an interior reconfiguration. B/E Aerospace Inc. - FSI
- [STC ST04596CH](https://openairdocs.org/stc/ST04596CH): Installation of Flight Deck Power System. Envoy Aerospace LLC
- [STC ST04620CH](https://openairdocs.org/stc/ST04620CH): Installation of an Interior Reconfiguration. Envoy Aerospace LLC
- [STC ST02668CH](https://openairdocs.org/stc/ST02668CH): Installation of Rosemount Aerospace Electronic Flight Bag (EFB) Systems. Rosemount Aerospace Inc
- [STC ST02311CH](https://openairdocs.org/stc/ST02311CH): Upgrade of existing Mode S transponder installation to enhanced surveillance Mode S. Amphenol Cable and Interconnect Technologies Inc
- [STC ST02835CH](https://openairdocs.org/stc/ST02835CH): Installation of mounting brackets as provisions for future mechanical installation of Electronic Flight Bag Display Units (DUs) and Remote Processing Units (RPUs). Amphenol Cable and Interconnect Technologies Inc
- [STC ST02943AT](https://openairdocs.org/stc/ST02943AT): Installation of a Connexion by Boeing Next Generation Antenna and Satellite Data System. Amphenol Cable and Interconnect Technologies Inc

All 392: https://openairdocs.org/aircraft/N794UA/stcs.md

## Related

- Other Boeing 777-222 aircraft: https://openairdocs.org/model/boeing-777-222/aircraft.md
- The Pratt & Whitney PW4090 engine: https://openairdocs.org/engine/pratt-whitney-pw4090.md

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