# N120UA: 1999 Boeing 747-422

- Status: Valid registration
- Airframe: [Boeing 747-422](https://openairdocs.org/model/boeing-747-422) (registry code 1384935, 495 seats)
- Engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119)
- Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (The Boeing Company) (OpenAirDocs)
- Serial number: 29166
- Year built: 1999
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: April 11, 1999
- Certificate issued: April 1, 2013
- Expires: April 30, 2029
- Mode S code: A05575
- 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=120UA
- Page: https://openairdocs.org/aircraft/N120UA

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 Pratt & Whitney PW4000 model are included.

## ADs that may apply (OpenAirDocs): 544 in force

### Matched by airframe (Boeing 747-422)

- [AD 2026-10-14](https://openairdocs.org/ad/2026-10-14): Communications system · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 6, 2026
- [AD 2026-13-14](https://openairdocs.org/ad/2026-13-14): Navigation · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 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 2026-08-06](https://openairdocs.org/ad/2026-08-06): Oxygen · Boeing 747-400 Series with STC ST01676SE or ST01706SE. Effective May 7, 2026
- [AD 2025-15-07](https://openairdocs.org/ad/2025-15-07): Equipment/furnishings · Boeing 747-8 Series, 747-8F Series, 747-200B Series and 6 more. Effective Aug 13, 2025
- [AD 2025-09-08](https://openairdocs.org/ad/2025-09-08): Stabilizers · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective May 5, 2025
- [AD 2025-03-10](https://openairdocs.org/ad/2025-03-10): Water/waste · Boeing 747-400 Series, 747-400F Series, 747-8F Series and 1 more. Effective Mar 21, 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 2025-02-05](https://openairdocs.org/ad/2025-02-05): Landing gear · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Mar 17, 2025
- [AD 2024-19-01](https://openairdocs.org/ad/2024-19-01): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Nov 15, 2024
- [AD 2023-23-14](https://openairdocs.org/ad/2023-23-14): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective Dec 15, 2023
- [AD 2023-18-06](https://openairdocs.org/ad/2023-18-06): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 7, 2023
- [AD 2023-12-14](https://openairdocs.org/ad/2023-12-14): Navigation · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 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 2023-07-09](https://openairdocs.org/ad/2023-07-09): Fuel · Boeing 747-400 Series and 747-8 Series. Effective May 1, 2023
- [AD 2023-03-20](https://openairdocs.org/ad/2023-03-20): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective May 1, 2023
- [AD 2023-03-15](https://openairdocs.org/ad/2023-03-15): Air conditioning · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 14, 2023
- [AD 2022-24-15](https://openairdocs.org/ad/2022-24-15): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective Jan 26, 2023
- [AD 2022-25-04](https://openairdocs.org/ad/2022-25-04): Equipment/Furnishings · Boeing 747-400 Series and 747-8 Series. Effective Jan 20, 2023
- [AD 2022-23-12](https://openairdocs.org/ad/2022-23-12): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 4, 2023
- [AD 2022-15-07](https://openairdocs.org/ad/2022-15-07): Navigation · Boeing 747-400 Series. Effective Sep 15, 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 2022-10-11](https://openairdocs.org/ad/2022-10-11): Fuel, Wings · Boeing 747-100B SUD Series, 747-200B Series, 747-200C Series and 6 more. Effective Jul 11, 2022
- [AD 2021-26-10](https://openairdocs.org/ad/2021-26-10): Equipment/Furnishings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Feb 22, 2022
- [AD 2021-17-06](https://openairdocs.org/ad/2021-17-06): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2021
- [AD 2021-14-10](https://openairdocs.org/ad/2021-14-10): Equipment/furnishings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Aug 19, 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 2021-06-10](https://openairdocs.org/ad/2021-06-10): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 16 more. Effective Apr 28, 2021
- [AD 2020-21-16](https://openairdocs.org/ad/2020-21-16): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 14, 2021
- [AD 2020-18-02](https://openairdocs.org/ad/2020-18-02): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Nov 10, 2020
- [AD 2020-15-14](https://openairdocs.org/ad/2020-15-14): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 3, 2020
- [AD 2020-14-02](https://openairdocs.org/ad/2020-14-02): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 28, 2020
- [AD 2020-07-14](https://openairdocs.org/ad/2020-07-14): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 18, 2020
- [AD 2020-04-11](https://openairdocs.org/ad/2020-04-11): Fuselage · Boeing 747-400 Series. Effective Apr 13, 2020
- [AD 2019-19-02](https://openairdocs.org/ad/2019-19-02): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Nov 27, 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 2018-19-23](https://openairdocs.org/ad/2018-19-23): Doors · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 15 more. Effective Nov 7, 2018
- [AD 2018-16-06](https://openairdocs.org/ad/2018-16-06): Equipment/furnishings; 53, Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 12, 2018
- [AD 2018-09-12](https://openairdocs.org/ad/2018-09-12): Oxygen · Boeing 747-200B Series, 747-300 Series and 747-400 Series. Effective May 30, 2018
- [AD 2018-04-07](https://openairdocs.org/ad/2018-04-07): Fuselage; Nacelles/Pylons; Stabilizers; Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Mar 30, 2018
- [AD 2017-22-10](https://openairdocs.org/ad/2017-22-10): Equipment/furnishings · Boeing 747-400 Series, 747-400F Series and 747-8F Series. Effective Dec 29, 2017
- [AD 2017-18-06](https://openairdocs.org/ad/2017-18-06): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2017
- [AD 2017-09-10](https://openairdocs.org/ad/2017-09-10): Wings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jun 27, 2017
- [AD 2017-02-09](https://openairdocs.org/ad/2017-02-09): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Mar 17, 2017
- [AD 2017-02-04](https://openairdocs.org/ad/2017-02-04): Nacelles/pylons · Boeing 747-200B Series, 747-300 Series, 747-400 Series and 2 more. Effective Mar 14, 2017
- [AD 2016-26-07](https://openairdocs.org/ad/2016-26-07): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Feb 15, 2017
- [AD 2016-25-01](https://openairdocs.org/ad/2016-25-01): Auto flight · Boeing 747-400 Series, 747-400D Series, 747-400F Series and 8 more. Effective Jan 31, 2017
- [AD 2016-25-05](https://openairdocs.org/ad/2016-25-05): Stabilizers · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 25, 2017
- [AD 2016-25-09](https://openairdocs.org/ad/2016-25-09): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jan 17, 2017
- [AD 2016-19-12](https://openairdocs.org/ad/2016-19-12): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Nov 14, 2016

### Matched by engine (Pratt & Whitney PW4000 series)

None in force.

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

- [AD 2025-01-08](https://openairdocs.org/ad/2025-01-08) (historical): Equipment/furnishings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 6 more. Effective Mar 19, 2025
- [AD 2022-27-07](https://openairdocs.org/ad/2022-27-07) (historical): Fuel · Boeing 747-400 Series and 747-8 Series. Effective Jan 13, 2023
- [AD 2022-06-16](https://openairdocs.org/ad/2022-06-16) (historical): Navigation · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 more. Effective Mar 16, 2022
- [AD 2021-07-09](https://openairdocs.org/ad/2021-07-09) (historical): Air conditioning · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 12, 2021
- [AD 2021-02-15](https://openairdocs.org/ad/2021-02-15) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Mar 30, 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 2019-22-02](https://openairdocs.org/ad/2019-22-02) (historical): Equipment/ furnishings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 6 more. Effective Jan 16, 2020
- [AD 2017-18-05](https://openairdocs.org/ad/2017-18-05) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2017
- [AD 2015-13-06](https://openairdocs.org/ad/2015-13-06) (historical): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Sep 1, 2015
- [AD 2014-07-01](https://openairdocs.org/ad/2014-07-01) (historical): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jun 3, 2014
- [AD 2013-22-11](https://openairdocs.org/ad/2013-22-11) (historical): Fuselage · Boeing 747-400 Series and 747-400D Series. Effective Dec 10, 2013
- [AD 2013-23-03](https://openairdocs.org/ad/2013-23-03) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 29, 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 2013-14-05](https://openairdocs.org/ad/2013-14-05) (historical): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Aug 26, 2013
- [AD 2013-01-02](https://openairdocs.org/ad/2013-01-02) (historical): Doors · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 12 more. Effective Feb 22, 2013
- [AD 2012-24-10](https://openairdocs.org/ad/2012-24-10) (historical): Air Conditioning · Boeing 747-400 Series and 747-400F Series. Effective Jan 16, 2013
- [AD 2012-22-02](https://openairdocs.org/ad/2012-22-02) (historical): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Dec 26, 2012
- [AD 2012-15-13](https://openairdocs.org/ad/2012-15-13) (historical): Fuselage · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Sep 12, 2012
- [AD 2012-05-03](https://openairdocs.org/ad/2012-05-03) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 24, 2012
- [AD 2010-26-10](https://openairdocs.org/ad/2010-26-10) (historical): Fuselage · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Feb 1, 2011
- [AD 2010-20-08](https://openairdocs.org/ad/2010-20-08) (historical): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 9, 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 2009-22-08](https://openairdocs.org/ad/2009-22-08) (historical): Control switches · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 12 more. Effective Dec 3, 2009
- [AD 2009-14-02](https://openairdocs.org/ad/2009-14-02) (historical): Vertical stabilizer seal and fuselage skin · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Aug 3, 2009
- [AD 2009-10-06](https://openairdocs.org/ad/2009-10-06) (historical): Air Transport Association (ATA) of America Code 27: Flight controls. · Boeing 747-400 Series and 747-400D Series. Effective Jun 9, 2009
- [AD 2009-06-02](https://openairdocs.org/ad/2009-06-02) (historical): Detect and correct cracks in the fuselage skin that can propagate and grow, resulting in a loss of structural integrity and a sudden decompression of the airplane during flight. · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 more. Effective Apr 20, 2009
- [AD 2008-10-06](https://openairdocs.org/ad/2008-10-06) (historical): Fuel tank systems · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jun 12, 2008
- [AD 2008-08-25](https://openairdocs.org/ad/2008-08-25) (historical): Main equipment center · Boeing 747-400 Series and 747-400F Series. Effective May 27, 2008
- [AD 2007-23-18](https://openairdocs.org/ad/2007-23-18) (historical): Tension ties · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Nov 28, 2007
- [AD 2007-16-08](https://openairdocs.org/ad/2007-16-08) (historical): Cracking of the station 800 frame assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Sep 13, 2007
- [AD 2007-15-10](https://openairdocs.org/ad/2007-15-10) (historical): No. 2 and No. 3 windows · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 4, 2007
- [AD 2007-16-19](https://openairdocs.org/ad/2007-16-19) (historical): Aft tension tie channels at four station locations · Boeing 747-200B Series, 747-300 Series and 747-400 Series. Effective Aug 28, 2007
- [AD 2007-07-03](https://openairdocs.org/ad/2007-07-03) (historical): Trim air diffuser ducts or sidewall riser duct assemblies · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 2, 2007
- [AD 2006-22-15](https://openairdocs.org/ad/2006-22-15) (historical): Nose wheel well (NWW) · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Dec 11, 2006
- [AD 2006-18-17](https://openairdocs.org/ad/2006-18-17) (historical): Yaw damper actuator portion of the upper and lower rudder power control modules (PCMs) · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Oct 13, 2006
- [AD 2006-12-12](https://openairdocs.org/ad/2006-12-12) (historical): Station 800 frame assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Jul 17, 2006
- [AD 2006-12-10](https://openairdocs.org/ad/2006-12-10) (historical): Support bracket of the crew oxygen cylinder · Boeing 747-400 Series. Effective Jul 17, 2006
- [AD 2006-10-04](https://openairdocs.org/ad/2006-10-04) (historical): Left and right longeron extension fittings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 3 more. Effective Jun 16, 2006
- [AD 2006-09-06](https://openairdocs.org/ad/2006-09-06) (historical): Lower lobe fuselage frames · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 5 more. Effective Jun 7, 2006
- [AD 2006-06-11](https://openairdocs.org/ad/2006-06-11) (historical): Fasteners in the tension ties · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Apr 26, 2006
- [AD 2006-05-09](https://openairdocs.org/ad/2006-05-09) (historical): Lap joints of the fuselage skin · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Apr 13, 2006
- [AD 2006-05-06](https://openairdocs.org/ad/2006-05-06) (historical): Body station (BS) 2598 bulkhead · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 13, 2006
- [AD 2006-05-02](https://openairdocs.org/ad/2006-05-02) (historical): Fuselage internal structure · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Apr 6, 2006
- [AD 2005-16-06](https://openairdocs.org/ad/2005-16-06) (historical): Escape slides/rafts. · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 13, 2005
- [AD 2005-15-08](https://openairdocs.org/ad/2005-15-08) (historical): Fuselage stringers · Boeing 747-100B Series, 747-200B Series, 747-300 Series and 2 more. Effective Aug 30, 2005
- [AD 2005-01-09](https://openairdocs.org/ad/2005-01-09) (historical): Frame Web and Inner Chords on Forward Edge Frame of Number 5 Main Entry Door Cutout · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Feb 11, 2005
- [AD 2003-23-01](https://openairdocs.org/ad/2003-23-01) (historical): Yaw damper actuator · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Dec 18, 2003
- [AD 2003-19-08](https://openairdocs.org/ad/2003-19-08) (historical): Discrepancies of Forward and Aft Sides of Body Station 2598 Bulkhead · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 27, 2003
- [AD 2003-20-08](https://openairdocs.org/ad/2003-20-08) (historical): Shoulder restraint harness · Boeing 747-100B Series, 747-200B Series, 747-200C Series and 8 more. Effective Oct 21, 2003
- [AD 2003-13-09](https://openairdocs.org/ad/2003-13-09) (historical): Horizontal stabilizer and rear spar structure · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 15, 2003

All 622: https://openairdocs.org/aircraft/N120UA/ads.md

## Information bulletins (advisory) (11 in force)

- [SAIB AIR-20-18](https://openairdocs.org/saib/AIR-20-18): Flight Management Computing Software System. Issued Nov 16, 2020
- [SAIB NM-20-07](https://openairdocs.org/saib/NM-20-07): Navigation - Glideslope System. Issued Apr 16, 2020
- [SAIB NM-18-33](https://openairdocs.org/saib/NM-18-33): Engine Fuel and Control. Issued Dec 17, 2018
- [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-15-02](https://openairdocs.org/saib/NM-15-02): Cabin Equipment/Furnishings. Issued Nov 6, 2014
- [SAIB NM-12-40](https://openairdocs.org/saib/NM-12-40): External Power System Connector. Issued Aug 3, 2012
- [SAIB NM-09-27](https://openairdocs.org/saib/NM-09-27): Equipment/Furnishings:  In-flight access to Class E cargo compartments. Issued May 12, 2009
- [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 ANM-99-29](https://openairdocs.org/saib/ANM-99-29): . Issued Jul 2, 1999

## NTSB investigations (2)

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 DCA15WA015](https://openairdocs.org/ntsb/DCA15WA015), Oct 22, 2014: Boeing 747 422 (N120UA), Frankfurt, Germany, incident, minor damage
- [NTSB LAX07LA204](https://openairdocs.org/ntsb/LAX07LA204), Jun 27, 2007: Boeing 747-422 (N120UA), Oceanic, no damage. Probable cause: An in-flight encounter with turbulence that resulted in serious injury to a flight attendant.

## FAA accident and incident reports

None matched to N120UA.

## Service difficulty reports (410, 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 CALA2017051501448](https://openairdocs.org/sdr/CALA2017051501448), May 15, 2017: LIGHT. INOPERATIVE. RT OVERWING EMERG EXIT LITE INOP. (ONE LAMP IN ONE LITE ASSY, LOCATED OUTSIDE, ON THE FUSELAGE, THIRD ONE BACK) RELAMPED PER AMM 33-50-96 PAGE BLOCK 401 AND TES
- [SDR CALA2017051501447](https://openairdocs.org/sdr/CALA2017051501447), May 15, 2017: LIGHT. INOPERATIVE. EMERG LITE INOP OUTSIDE LAV 100 RT DOOR FRAME. (UPPER OF THE TWO LIGHTS) REPLACED UPPER LED EEL LAMP ON LAV 100. OPS CK GOOD REF AMM 33-5 1-13.
- [SDR CALA2017051501446](https://openairdocs.org/sdr/CALA2017051501446), May 15, 2017: CONNECTOR. LOOSE. GREEN EEL STRIP INOP SEAT 52ABC. SECURED LIGHT CONNECTOR AND TESTED GOOD PER AMM 33-50-96-704-006.
- [SDR CALA2017040700897](https://openairdocs.org/sdr/CALA2017040700897), Apr 7, 2017: OVEN. FAULTY. WARMING OVEN 409 ELECTRICAL SMELL. REPLACED W43 OVEN WARMER. OPS CHECKED- GOOD. THERE IS NO OVEN WARMER 409. THE LABEL 409 IS NEXT TO THE LABEL W43 WHICH AN ARR
- [SDR CALA2017040700911](https://openairdocs.org/sdr/CALA2017040700911), Apr 7, 2017: LIGHT. LOOSE. EMERGENCY LIGHTS ON CORNER BUMPER AFT OF 1L IS LOOSE/HANGING. SECURED AS REQUIRED.
- [SDR CALA2017040700912](https://openairdocs.org/sdr/CALA2017040700912), Apr 7, 2017: FUSE. FAULTY. LEFT, OVERWING EMERGENCY LIGHTS INOP AT BODY FLARING PANEL. FOUND FUSE IN POWER SUPPLY M7919 OPEN, REPLACED FUSE REF SSM 33-51-01.
- [SDR CALA2017011300082](https://openairdocs.org/sdr/CALA2017011300082), Jan 13, 2017: WIRE. BROKEN. EMERGENCY LIGHT ROW 51 INOPERATIVE. RERPAIRED WIRES BROKEN ON CONNECTOR UNDER SEAT 51C. OP CHECKED OK IAW AMM33-51-00.
- [SDR CALA2017011300081](https://openairdocs.org/sdr/CALA2017011300081), Jan 13, 2017: CONNECTOR. NOT SEATED. EMERGENCY LIGHT INOPERATIVE AT ROW 46. FOUND SOCKET PUSHED BACK IN THE LIGHT CONNECTOR, RESEATED THE SOCKET, OPS CHECKED OK.
- [SDR CALA2016072700454](https://openairdocs.org/sdr/CALA2016072700454), Jul 27, 2016: SENSOR. FAILED. CREW REPORTS AFTER RAISING GEAR LEVER GEAR DISAGREE & GEAR TILT CAUTION MESSAGES DISPLAYED AND GEAR DID NOT RETRACT. SEVERAL ASSOCIATED STATUS MESSEGES ALSO DIS
- [SDR CALA2016062895485](https://openairdocs.org/sdr/CALA2016062895485), Jun 27, 2016: WEB. CRACKED. RIGHT FLOOR WEB FOUND CRACKED. M-DECK RT STA 140 TO STA 160 CRACKED FLOOR WEB, CRACK LENGTH 2". REPAIRED IAW SRM 53-10-51 REPAIR 7, FIG 201.
- [SDR CALA2016062895484](https://openairdocs.org/sdr/CALA2016062895484), Jun 27, 2016: SHEAR WEB. CRACKED. LEFT BS 1120 TENSION TIE SLOPE SHEAR WEB FOUND CRACKED. STA 1120, LBL 80 SLOPING SHEAR WEB FASTENER HOLE CRACKED AREA, REPAIR IAW SRM 53-40-30, REPAIR 3, FIG 20
- [SDR CALA2016062895483](https://openairdocs.org/sdr/CALA2016062895483), Jun 27, 2016: SHEAR WEB. CRACKED. RIGHT BS 1120, TENSION TIE AREA 1 EA HOLE FOUND CRACKED AT SLOPING SHEAR WEB, BS 1120. RT SLOPING SHEAR WEB WAS CRACKED. REPAIR IAW SRM 53-40-30, REPAIR 3, FIG 
- [SDR CALA2016062895482](https://openairdocs.org/sdr/CALA2016062895482), Jun 27, 2016: CHANNEL. CRACKED. STA 1160, LEFT TENSION TIE 1 EA FASTENER HOLE CRACK AT FORWARD CHANNEL AT 12 O`CLOCK AND 6 O`CLOCK POSITION. STA 1160, LT TENSION TIE FORWARD CHANNEL CRACKED AR
- [SDR CALA2016062895481](https://openairdocs.org/sdr/CALA2016062895481), Jun 27, 2016: CHANNEL. CRACKED. RIGHT STA 1120, R70 TENSION TIE AREA FOUND 1 EA FASTENER HOLE CRACKED AT FWD CHANNEL LAYER APPROXIMATELY 1-8" IN LENGTH AT 1 O`CLOCK POSTION. BS 1120, FWD AND A
- [SDR CALA2016062895480](https://openairdocs.org/sdr/CALA2016062895480), Jun 27, 2016: CHANNEL. CRACKED. RIGHT BS 1180, TENSION TIE FORWARD CHANNEL, 2 EA HOLES FOUND CRACKED. STA 1180, RT TENSION TIE FWD CHANNEL CRACKED AREA REPAIRED IAW SRM 53-40-30, REPAIR 2, FIG
- [SDR CALA2016062895479](https://openairdocs.org/sdr/CALA2016062895479), Jun 27, 2016: TENSION TIE. CRACKED. LEFT TENSION TIE, BS 1180, 2EA HOLES FOUND CRACK AT FORWARD CHANNEL. STA 1180, LEFT TENSION TIE FORWARD CHANNEL CRACKED AREA REPAIR IAW SRM 53-40-30, REPAIR 2, 
- [SDR CALA2016062895478](https://openairdocs.org/sdr/CALA2016062895478), Jun 27, 2016: CHANNEL. CRACKED. STA 1160 TENSION TIE FORWARD CHANNEL 1 EA FASTENER HOLE FOUND 2 CRACKS AT 6 OCLOCK POSTION. STA 1160 RT TENSION TIE FORWARD & AFT CHANNEL CRACKED AREA REPAIRS I
- [SDR CALA2016062895477](https://openairdocs.org/sdr/CALA2016062895477), Jun 27, 2016: TENSION TIE. CRACKED. STA 1120, TENSION TIE 2 EA FASTENER HOLE FOUND CRACKED AT FORWARD CHANNEL AT 6 O`CLOCK POSITION APPROXIMATELY 0.060 AND 0.020 LENGTH. STA 1120, LT FORWARD & AFT
- [SDR CALA2016052395413](https://openairdocs.org/sdr/CALA2016052395413), May 21, 2016: UNKNOWN. ODOR. GATE RETURN DUE TO STRONG ELEC ODOR IN AFT GALLEY AREA. HAVE BEEN UNABLE TO LOCATE SOURCE OF ODOR IN MID AFT GALLEY AREA. ACCOMPLISHED ALL CHECKS IAW FIM, NO DI
- [SDR CALA2015101294583](https://openairdocs.org/sdr/CALA2015101294583), Oct 12, 2015: SKIN. CHAFED. NUMBER 1 PYLON SKIN, SUSPECT CRACK & CHAFING AT 452ER ACCESS DOOR CUT OUT. REPAIRED IAW ECRA 5430-02046.
- [SDR CALA2015020293051](https://openairdocs.org/sdr/CALA2015020293051), Feb 2, 2015: SKIN. CORRODED. EXT FUSE BS 1700-1720 S43R CORROSION. REMOVED DAMAGE. FABRICATED AND INSTALLED REPAIR PARTS IAW ECRA 5330-05031.
- [SDR CALA2015020293045](https://openairdocs.org/sdr/CALA2015020293045), Jan 31, 2015: LIGHT. MISSING. CABIN SEAT 46HK PEELS MISSING. REPLACED THE 46HK SEAT PEELS EMER LIGHT. TEST PASSED IAW AMM 33-51-12.
- [SDR CALA2015020293044](https://openairdocs.org/sdr/CALA2015020293044), Jan 31, 2015: CABLE. BROKEN. CABIN LAVATORY 111 EMER LIGHT CABLE BROKEN. REPLACED CABIN LAVATORY 111 EMER LIGHT CABLE & LIGHT TEST FOUND FUNCTION PASSED IAW AMM33-51-00. REPLACED CABIN DOOR
- [SDR CALA2014122392865](https://openairdocs.org/sdr/CALA2014122392865), Dec 23, 2014: SCHRADER VALVE. DEFECTIVE. ON TAKEOFF THE CREW HEARD A LOUD NOISE & THE NOSE GEAR WOULD NOT RETRACT. FOUND NLG STRUT FLAT, CHANGED SHRADER VLV, SERVICED STRUT & DID A GEAR SWING. OPERATIO
- [SDR CALA2014060291200](https://openairdocs.org/sdr/CALA2014060291200), May 31, 2014: PRESSURE SWITCH. DIRTY. NUMBER 4 AFT BOOST PUMP LOW PRESS LIGHTS ARE INOPERATIVE. CLEANED NR 4 AFT BOOST PUMP PRESS SWITCH & LOW PRESS LIGHT. OPERATIONS NORMAL.
- [SDR CALA2014041790859](https://openairdocs.org/sdr/CALA2014041790859), Apr 17, 2014: BATTERY PACK. DISCHARGED. EEL SLIDE LIGHTS OUT, LT SIDE, LOWER 2 LIGHTS. REPLACED BATTERY PACK IAW MM33-51-00-032-001, MM33-51-00-432-006 & MM33-51-04-902-001. OPERATIONS CHECKED GOOD IA
- [SDR CALA2014041790858](https://openairdocs.org/sdr/CALA2014041790858), Apr 17, 2014: LIGHT. INOPERATIVE. FLOOR LEVEL EEL LIGHT OUT AT SEAT 35C. REPLACED EEL STRIP, OPERATIONS CHECKED OK.
- [SDR CALA2014030390531](https://openairdocs.org/sdr/CALA2014030390531), Mar 1, 2014: UNKNOWN. MALFUNCTIONED. EMERGENCY LIGHTS ON WHEN SWITCH IN OFF POSITION. SWITCH CYCLED, OPERATIONS CHECKED OK.
- [SDR CALA2014022190429](https://openairdocs.org/sdr/CALA2014022190429), Feb 18, 2014: SHROUD. CRACKED. ON CM CHECK FOUND 49F, 40B, 43C, 50K, 56K, 60H & 50J DPCU SHROUD CRACKED. REPLACED & CHECKED OK
- [SDR CALA2013122393867](https://openairdocs.org/sdr/CALA2013122393867), Dec 20, 2013: CHARGER. FAULTY. STANDBY POWER TEST UNSATISFACTORY. BATTERY DISCHARGE APU DOES NOT APPEAR IN EICAS PANEL. REPLACED APU BATTERY CHARGER IAW AMM, OKAY.
- [SDR CALA2013112793300](https://openairdocs.org/sdr/CALA2013112793300), Nov 27, 2013: WEB. CRACKED. CABIN L5 DOOR FWD CUTOUT BETWEEN STRINGER 21L & STRINGER 22L WEB CRACKED 2 INCHES. WEB CRACK REPAIRED IAW B747 SRM 53-60-15, REPAIR 3, FIG 201.
- [SDR CALA2013112793299](https://openairdocs.org/sdr/CALA2013112793299), Nov 27, 2013: WEB. CRACKED. CABIN R5 DOOR FWD CUTOUT BETWEEN STRINGER 21R & 22R WEB CRACKED. WEB CRACK 1.5" LENGTH. REPAIRED IAW B747SRM 53-60 -15, REPAIR 3, FIG 201.
- [SDR CALA2013112793293](https://openairdocs.org/sdr/CALA2013112793293), Nov 26, 2013: SEAT TRACK. CORRODED. MAIN DECK SEAT TRACK AT ZONE D STATION 1658 TO 1660 RBL 40 SEAT TRACK FOUND CORRODED. CORROSION REPLACES AT BS 1580 TO 1770 RBL 40. CORROSION REMOVED IAW SRM 51
- [SDR CALA2013112793292](https://openairdocs.org/sdr/CALA2013112793292), Nov 26, 2013: FAIRING. GOUGED. ON WALK AROUND FOUND GOUGE IN FUSELAGE BODY FAIRING 191DDL.
- [SDR CALA2013112793288](https://openairdocs.org/sdr/CALA2013112793288), Nov 26, 2013: INTERCOSTAL. CORRODED. MAIN DECK FLOOR SUPPORT AT STATION 980, LBL 40 IS CORRODED. CORRODED FLOOR INTERCOSTAL REPAIRED AT BS 940 TO BS 1003 LBL 40, CORROSION REMOVED IAW SRM 51-10-02.
- [SDR CALA2013112693254](https://openairdocs.org/sdr/CALA2013112693254), Nov 26, 2013: SKIN. CORRODED. DURING HMV2, FUSELAGE CROWN SKIN INTERNAL SURFACE FOUND CORRODED AT APPROXIMATELY BS 1480 FROM STRINGER 19L - 19R. DAMAGED SKINS SECTIONS WERE REMOVED & NEW FAB
- [SDR CALA2013112193168](https://openairdocs.org/sdr/CALA2013112193168), Nov 20, 2013: SKIN. DENTED. FOUND DAMAGE, RT OUTER CURVED BODY GEAR DOOR HAS TWO SMALL GOUGES ON ITS OUTER SKIN. REPAIRED IAW ECRA #5280-01534 REV C PART 3.
- [SDR CALA2013111892986](https://openairdocs.org/sdr/CALA2013111892986), Nov 18, 2013: FLOORBEAM. CORRODED. 'B' ZONE FLOORBEAM UPPER TEE FOUND CORRODED AT BS 520 LBL 3 TO RBL 8. FOUND OUT OF LIMITS IAW SRM 53-00-51 ALLOWABLE DAMAGE 1 FIG 101. FLOORBEAM REPAIRED LBL 33
- [SDR CALA2013111892976](https://openairdocs.org/sdr/CALA2013111892976), Nov 16, 2013: WEB. CRACKED. RT FLOOR WEB FOUND CRACKED BS 140 - 160. REPAIRED IAW SRM 53-10-51 RPR 7 FIG 201.
- [SDR CALA2013111592956](https://openairdocs.org/sdr/CALA2013111592956), Nov 15, 2013: SKIN. DENTED. FX FUSELAGE SKIN DENT FOUND AT RT STATION 370 WL 320 AREA. FUSELAGE SKIN AT STATION 360 TO STATION 380 STRINGER 10R TO STRINGER 10AR DENT MEASURES DEPTH 0.020 X
- [SDR CALA2013111392894](https://openairdocs.org/sdr/CALA2013111392894), Nov 13, 2013: WEB. CRACKED. MAIN DECK BS 140 - 160 RT FLOOR WEB FOUND CRACKED. REPAIRED IAW SRM 53-10-51 REPAIR 7 FIG 201.
- [SDR CALA2013111392881](https://openairdocs.org/sdr/CALA2013111392881), Nov 13, 2013: WEB. CRACKED. LEFT FLOOR WEB FOUND CRACKED. BS 140 - 160. REPAIRED IAW SRM 53-10-51 REPAIR 7 FIG 201.
- [SDR CALA2013111192814](https://openairdocs.org/sdr/CALA2013111192814), Nov 11, 2013: SHEAR WEB. CRACKED. MAIN DECK LT BS 1120 TENSION TIE SLOPE SHEAR WEB FOUND CRACKED. REPAIR IAW SRM 53-40-30 REPAIR 3 FIG 201 & REPAIR DATA MARKED IAW UAL GNMM 1-1-0-7.
- [SDR CALA2013111192813](https://openairdocs.org/sdr/CALA2013111192813), Nov 11, 2013: SHEAR WEB. CRACKED. MAIN DECK RT BS 1120 TENSION TIE AREA ONE EACH HOLE FOUND CRACKED AT SLOPE SHEAR WEB. MAIN DECK BS 1120 RT SLOPING SHEAR WAS CRACKED. REPAIR IAW SRM 53-40-30 RE
- [SDR CALA2013111392900](https://openairdocs.org/sdr/CALA2013111392900), Nov 10, 2013: MOTOR. UNKNOWN. OTBD TE FLAP ALT DR MOTOR REPLACE IAW TASK CARD 813804030. OTBD TE FLAP ALT DR MOTOR REPLACED IAW TASK CARD 813804030.
- [SDR CALA2013111392899](https://openairdocs.org/sdr/CALA2013111392899), Nov 10, 2013: MOTOR. FAULTY. INBD TE FLAP ALT DR MOTOR REPLACED IAW TASK CARD 813704030.
- [SDR CALA2013111292861](https://openairdocs.org/sdr/CALA2013111292861), Nov 9, 2013: CHANNEL. CRACKED. MAIN DECK BS 1160 LT TENSION TIE FASTENER HOLE CRACKED AT FWD CHANNEL. CHANNEL REPAIRED IAW SRM. REPAIR 2 FIG 201.
- [SDR CALA2013111292860](https://openairdocs.org/sdr/CALA2013111292860), Nov 9, 2013: TENSION TIE. CRACKED. MD RT BS 1120 TENSION TIE AREA FOUND ONE FASTENER HOLE CRACK AT FWD CHANNEL LAYER APPROXIMATELY 1-8 IN LENGTH AT 1 O'CLOCK POSITION. TENSION TIE REPAIRED IAW SR
- [SDR CALA2013111292859](https://openairdocs.org/sdr/CALA2013111292859), Nov 9, 2013: CHANNEL. CRACKED. MAIN DECK RT BS 1180 TENSION TIE FWD CHANNEL TWO EACH HOLES FOUND CRACKED. CHANNEL REPAIRED IAW SRM 53-40-30 REPAIR 2 FIG 201.
- [SDR CALA2013111192771](https://openairdocs.org/sdr/CALA2013111192771), Nov 9, 2013: TENSION TIE. CRACKED. MAIN DECK STATION 1160 TENSION TIE FWD CHANNEL ONE EACH FASTENER HOLE FOUND 2 CRACKS AT 6 O'CLOCK POSITION. DETAIL IAW DRAWING. MAIN DECK STATION 1160 RT TENSIO

All 410: https://openairdocs.org/aircraft/N120UA/reports.md

## STCs that may be installed (OpenAirDocs) (699, 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 747-422)

- [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 ST02166SE](https://openairdocs.org/stc/ST02166SE): Installation of additional bunks in the Door 5 Overhead Crew Rest on Boeing Model 747-400 series aircraft. B/E Aerospace, Inc. - FSI
- [STC ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc
- [STC ST00437AT](https://openairdocs.org/stc/ST00437AT): Installation of Collins SAT-906 SATCOM System with Canadian- Marconi CMA-2102 Antenna System and Ball Airlink Low Gain Antenna. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST00552AT](https://openairdocs.org/stc/ST00552AT): Installation of a Collins SATCOM update from 900 SDU to 906 SDU. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST01859AT-D](https://openairdocs.org/stc/ST01859AT-D): Installation of a Collins CPL-920D H.F. Antenna coupler in a provisioned aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST01959AT-D](https://openairdocs.org/stc/ST01959AT-D): Installation of Ball Aerospace Camera entertainment system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST02621AT-D](https://openairdocs.org/stc/ST02621AT-D): Installation In-flight Entertainment System provisions. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03091AT-D](https://openairdocs.org/stc/ST03091AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03092AT-D](https://openairdocs.org/stc/ST03092AT-D): Interior modification. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03143AT-D](https://openairdocs.org/stc/ST03143AT-D): Installation of a Rockwell Collins AERO H+ SATCOM System. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03419AT](https://openairdocs.org/stc/ST03419AT): Rockwell Collins SATCOM High Speed Transmitter Installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03504AT-D](https://openairdocs.org/stc/ST03504AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03556AT-D](https://openairdocs.org/stc/ST03556AT-D): Installation and Reactivation of a SATCOM System (Honeywell) and an ACARS System Upgrade (Rockwell Collins). AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03821AT-D](https://openairdocs.org/stc/ST03821AT-D): Installation of a Panasonic eX2 In-Flight Entertainment System in a Boeing 747-400 aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04378AT](https://openairdocs.org/stc/ST04378AT): VIP Cabin IFE / Communication systems upgrades. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST04379AT](https://openairdocs.org/stc/ST04379AT): Installation of Gogo 2Ku WiFi System. 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 ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [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 ST02927NY](https://openairdocs.org/stc/ST02927NY): Installation of a Panasonic Avionics Corporation Global Communications Suite Antenna. Delta Engineering Corporation
- [STC ST03047CH](https://openairdocs.org/stc/ST03047CH): Certification of Compatibility with Cellular and Wireless Data Technologies. Delta Engineering Corporation
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC SA3943NM](https://openairdocs.org/stc/SA3943NM): Installation of C&D interiors outboard bins and sidewall panels, stowage unit, class divider, super bin kit. Safran Cabin Inc
- [STC SA5799NM](https://openairdocs.org/stc/SA5799NM): Installation of a modular lavatory retrofit kit. Safran Cabin Inc
- [STC ST00484SE](https://openairdocs.org/stc/ST00484SE): Installation of interior retrofit kit. Safran Cabin Inc
- [STC ST00661SE](https://openairdocs.org/stc/ST00661SE): Installation of upper deck closets. Safran Cabin Inc
- [STC ST00734SE](https://openairdocs.org/stc/ST00734SE): Installation of interior retrofit kit. Safran Cabin Inc
- [STC ST00773SE](https://openairdocs.org/stc/ST00773SE): Installation of Upper Deck Overhead Stowage Bin Interior Retrofit. Safran Cabin Inc
- [STC ST00776SE](https://openairdocs.org/stc/ST00776SE): Installation of interior kits. Safran Cabin Inc
- [STC ST00799LA](https://openairdocs.org/stc/ST00799LA): Installation of a folding cart stowage unit and modifications. Safran Cabin Inc
- [STC ST00835SE](https://openairdocs.org/stc/ST00835SE): Installation of interior components. Safran Cabin Inc
- [STC ST00836SE](https://openairdocs.org/stc/ST00836SE): Installation of interior components and in-flight entertainment system. Safran Cabin Inc
- [STC ST00942SE](https://openairdocs.org/stc/ST00942SE): Installation of Airshow 420 News and Weather Information System kit. Safran Cabin Inc
- [STC ST01061SE](https://openairdocs.org/stc/ST01061SE): Installation of Airshow 420 News and Weather Information System. Safran Cabin Inc
- [STC ST01152SE](https://openairdocs.org/stc/ST01152SE): Installation Interior Components. Safran Cabin Inc
- [STC ST01315LA](https://openairdocs.org/stc/ST01315LA): Installation of a forward facing flight attendant seat. Safran Cabin Inc
- [STC ST01503SE](https://openairdocs.org/stc/ST01503SE): Installation of Interior components. Safran Cabin Inc
- [STC ST01507SE](https://openairdocs.org/stc/ST01507SE): Installation of interior components. Safran Cabin Inc
- [STC ST01523SE](https://openairdocs.org/stc/ST01523SE): Installation of interior components. Safran Cabin Inc
- [STC ST01532SE](https://openairdocs.org/stc/ST01532SE): Installation of interior components. Safran Cabin Inc
- [STC ST01533SE](https://openairdocs.org/stc/ST01533SE): Installation of interior components. Safran Cabin Inc
- [STC ST01554SE](https://openairdocs.org/stc/ST01554SE): Installation of interior components. Safran Cabin Inc
- [STC ST01622SE](https://openairdocs.org/stc/ST01622SE): Installation of interior components. Safran Cabin Inc
- [STC ST01780SE](https://openairdocs.org/stc/ST01780SE): Installation of interior components. Safran Cabin Inc
- [STC ST01880LA](https://openairdocs.org/stc/ST01880LA): Installation of pantry. Safran Cabin Inc
- [STC ST01986NY-D](https://openairdocs.org/stc/ST01986NY-D): Update of Panasonic Avionics Corporation System 3000 passenger entertainment system. Safran Cabin Inc

All 699: https://openairdocs.org/aircraft/N120UA/stcs.md

## Related

- Other Boeing 747-422 aircraft: https://openairdocs.org/model/boeing-747-422/aircraft.md
- The Pratt & Whitney PW4000 series engine: https://openairdocs.org/engine/pratt-whitney-pw4000-series.md

---
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