# Boeing 747-121

- Type: Aircraft model (FAA registry)
- Registry codes: 138487A, 1384871
- Manufacturer (registry): BOEING
- Model: 747-121
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 4 · Turbo-fan
- Seats: 495
- Weight class: 20,000 lb and over
- Certification: Type certificated
- Data sheet: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs)
- Holder: The Boeing Company
- Registered aircraft: 1
- Page: https://openairdocs.org/model/boeing-747-121

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker. The FAA lists this model under more than one registry code, usually for different spellings of the maker. This page covers them all.

## ADs that may apply (OpenAirDocs)

Matched to this model by model name and maker. Each AD's applicability may narrow it by serial number, part number or equipment.

- [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 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 2025-02-05](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 2023-03-15](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 2022-23-12](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 2022-17-03](https://openairdocs.org/ad/2022-17-03): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Oct 20, 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 2021-06-10](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 2020-15-14](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 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 2018-04-07](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 2017-18-06](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 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 2016-25-05](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 2016-19-03](https://openairdocs.org/ad/2016-19-03): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 31, 2016
- [AD 2016-16-10](https://openairdocs.org/ad/2016-16-10): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 14, 2016
- [AD 2016-07-03](https://openairdocs.org/ad/2016-07-03): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective May 5, 2016
- [AD 2016-06-07](https://openairdocs.org/ad/2016-06-07): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 22, 2016
- [AD 2016-04-18](https://openairdocs.org/ad/2016-04-18): Fuselage · Boeing 747-100 Series, 747-200B Series, 747-200C Series and 5 more. Effective Apr 5, 2016
- [AD 2016-01-04](https://openairdocs.org/ad/2016-01-04): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Feb 17, 2016
- [AD 2015-25-03](https://openairdocs.org/ad/2015-25-03): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Jan 28, 2016
- [AD 2015-23-11](https://openairdocs.org/ad/2015-23-11): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective Dec 28, 2015
- [AD 2015-22-01](https://openairdocs.org/ad/2015-22-01): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Dec 1, 2015
- [AD 2015-15-01](https://openairdocs.org/ad/2015-15-01): Fuselage · Boeing 747-100 Series, 747-200B Series and 747-200F Series. Effective Aug 28, 2015
- [AD 2015-14-09](https://openairdocs.org/ad/2015-14-09): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective Aug 17, 2015
- [AD 2015-03-04](https://openairdocs.org/ad/2015-03-04): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Mar 25, 2015
- [AD 2014-24-05](https://openairdocs.org/ad/2014-24-05): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Jan 28, 2015
- [AD 2014-22-11](https://openairdocs.org/ad/2014-22-11): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-200B Series and 5 more. Effective Dec 17, 2014
- [AD 2014-17-02](https://openairdocs.org/ad/2014-17-02): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Sep 9, 2014
- [AD 2014-15-14](https://openairdocs.org/ad/2014-15-14): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 9, 2014
- [AD 2014-14-03](https://openairdocs.org/ad/2014-14-03): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 15, 2014
- [AD 2014-05-27](https://openairdocs.org/ad/2014-05-27): Navigation · Airbus A319-111, A319-112, A319-113 and 99 more. Effective May 2, 2014
- [AD 2014-05-24](https://openairdocs.org/ad/2014-05-24): Fuselage · Boeing 747-100 Series, 747-200B Series and 747-200F Series. Effective Apr 25, 2014
- [AD 2013-26-12](https://openairdocs.org/ad/2013-26-12): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Feb 10, 2014
- [AD 2013-24-11](https://openairdocs.org/ad/2013-24-11): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 7, 2014
- [AD 2013-23-15](https://openairdocs.org/ad/2013-23-15): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Dec 30, 2013
- [AD 2013-22-06](https://openairdocs.org/ad/2013-22-06): Fuselage · Boeing 747-100 Series, 747-200B Series and 747-200F Series. Effective Dec 5, 2013

Historical (superseded or no longer in force):

- [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 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 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 2013-23-03](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 2013-01-02](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 2012-13-08](https://openairdocs.org/ad/2012-13-08) (historical): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-200B Series and 5 more. Effective Aug 14, 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 2010-20-08](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 2009-06-02](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 2008-10-07](https://openairdocs.org/ad/2008-10-07) (historical): Fuel tank systems · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Jun 12, 2008
- [AD 2008-10-15](https://openairdocs.org/ad/2008-10-15) (historical): External skin doublers · Boeing 747-100 Series, 747-100B Series, 747-200B Series and 5 more. Effective May 20, 2008
- [AD 2007-19-19](https://openairdocs.org/ad/2007-19-19) (historical): Forward engine mount · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Oct 9, 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 2007-07-03](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 2007-01-15](https://openairdocs.org/ad/2007-01-15) (historical): Strut front spar chord assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Jan 29, 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 2006-12-12](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 2006-09-06](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 2006-05-06](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 2006-01-07](https://openairdocs.org/ad/2006-01-07) (historical): Tension tie · Boeing 747-100 Series, 747-100B Series, 747-200B Series and 5 more. Effective Feb 16, 2006
- [AD 2005-20-30](https://openairdocs.org/ad/2005-20-30) (historical): Fuselage internal structure · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective Nov 16, 2005
- [AD 2005-19-06](https://openairdocs.org/ad/2005-19-06) (historical): Thrust links of the rear engine mounts · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Sep 30, 2005
- [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 2005-01-09](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 2004-25-05](https://openairdocs.org/ad/2004-25-05) (historical): Strut front spar chord assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Dec 27, 2004
- [AD 2004-13-02](https://openairdocs.org/ad/2004-13-02) (historical): Upper and Lower Skins of the Fuselage Lap Joints · Boeing 747-100 Series, 747-200B Series and 747-200F Series. Effective Jul 29, 2004
- [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 2003-13-09](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
- [AD 2003-08-11](https://openairdocs.org/ad/2003-08-11) (historical): Trailing edge flap actuator · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective May 8, 2003
- [AD 2003-03-15](https://openairdocs.org/ad/2003-03-15) (historical): Airplane Flight Manual (AFM) - Oxygen Masks · Boeing 707 Series (all), 720 Series (all), 727 Series (all) and 75 more. Effective Mar 7, 2003
- [AD 2002-18-04](https://openairdocs.org/ad/2002-18-04) (historical): Upper Deck Floor Beams · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective Oct 16, 2002
- [AD 2002-06-02](https://openairdocs.org/ad/2002-06-02) (historical): Horizontal Stabilizer Center Section and Rear Spar Upper Chord · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 3, 2002
- [AD 2001-16-02](https://openairdocs.org/ad/2001-16-02) (historical): Number 5 Main Entry Door Cutout · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Sep 12, 2001
- [AD 2001-14-22](https://openairdocs.org/ad/2001-14-22) (historical): Station 800 Frame Assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 3 more. Effective Aug 30, 2001
- [AD 2001-15-03](https://openairdocs.org/ad/2001-15-03) (historical): Forward Inner Chord of the Upper Corner of Station 2598 Bulkhead · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Aug 28, 2001
- [AD 2001-14-07](https://openairdocs.org/ad/2001-14-07) (historical): Frame Support--Horizontal Stabilizer · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Aug 16, 2001
- [AD 2001-13-06](https://openairdocs.org/ad/2001-13-06) (historical): Diagonal Brace Underwing Fittings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 5 more. Effective Aug 1, 2001
- [AD 2001-12-23](https://openairdocs.org/ad/2001-12-23) (historical): Vertical Chords of the Aft Torque Bulkhead of the Outboard Nacelle Struts · Boeing 747-100 Series, 747-200B Series, 747-200C Series and 4 more. Effective Jul 27, 2001
- [AD 2001-12-05](https://openairdocs.org/ad/2001-12-05) (historical): Outboard Diagonal Brace · Boeing 747-100 Series, 747-200B Series, 747-200C Series and 3 more. Effective Jun 27, 2001
- [AD 2000-25-12](https://openairdocs.org/ad/2000-25-12) (historical): Front Spar Web Of The Wing · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 30, 2001
- [AD 2000-23-25](https://openairdocs.org/ad/2000-23-25) (historical): Lower Spar Fitting · Boeing 747-100 Series, 747-200B Series, 747-200C Series and 4 more. Effective Dec 13, 2000
- [AD 2000-04-17](https://openairdocs.org/ad/2000-04-17) (historical): Upper Deck Floor Beams · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective Mar 15, 2000
- [AD 99-07-12](https://openairdocs.org/ad/99-07-12) (historical): Lower Lobe Fuselage Frame · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 4 more. Effective May 5, 1999

All 527: https://openairdocs.org/model/boeing-747-121/ads.md

## Information bulletins (advisory) (7)

- [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-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

## Registered aircraft (1)

- [N7470](https://openairdocs.org/aircraft/N7470): [Museum Of Flight Foundation](https://openairdocs.org/faa-owner/MUSEUM%20OF%20FLIGHT%20FOUNDATION), [Seattle, WA](https://openairdocs.org/faa-place/WA/Seattle), built 1969, S/N 20235

## NTSB investigations (15)

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 MIA96FA013](https://openairdocs.org/ntsb/MIA96FA013), Oct 23, 1995: Boeing 747-121 (N613FF), Miami, FL, substantial damage. Probable cause: failure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine.
- [NTSB DCA93MA033](https://openairdocs.org/ntsb/DCA93MA033), Mar 31, 1993: Boeing 747-121 (N473EV), Anchorage, AK, substantial damage. Probable cause: THE LATERAL SEPARATION OF THE NO. 2 ENGINE PYLON DUE TO AN ENCOUNTER WITH SEVERE OR POSSIBLY EXTREME TURBULENCE THAT RESULTED IN DYNAMIC MULTI-AXIS LATERAL LOADINGS THAT EXCEEDED THE ULTIMATE LATERAL…
- [NTSB BFO92IA046](https://openairdocs.org/ntsb/BFO92IA046), Mar 19, 1992: Boeing 747-123 (N681UP), Louisville, KY, incident, minor damage. Probable cause: INADEQUATE OBSTACLE CLEARANCE, WHICH RESULTED IN ON GROUND COLLISION WITH A BLAST FENCE. CONTRIBUTING WAS INADEQUATE INSTRUCTION FROM GROUND PERSONNEL.
- [NTSB DCA89RA014](https://openairdocs.org/ntsb/DCA89RA014), Dec 21, 1988: Boeing 747-121 (N739PA), Lockerbie, United Kingdom, 270 fatal
- [NTSB DCA83RA001](https://openairdocs.org/ntsb/DCA83RA001), Aug 4, 1983: Boeing 747-121 (N738PA), Pakistan
- [NTSB LAX79IA092](https://openairdocs.org/ntsb/LAX79IA092), Sep 30, 1979: Boeing 747 (N750PA), Pacific Ocean (Pacific Ocean), incident, no damage, 1 fatal
- [NTSB DCA77RA014](https://openairdocs.org/ntsb/DCA77RA014), Mar 27, 1977: Boeing 747 (N736PA), Tenerife, SP, destroyed, 574 fatal
- [NTSB NYC77IA041](https://openairdocs.org/ntsb/NYC77IA041), Mar 24, 1977: Boeing 747 (N747PA), London, United Kingdom, incident, no damage
- [NTSB DCA72RZ014](https://openairdocs.org/ntsb/DCA72RZ014), Mar 8, 1972: Boeing 747 (N738PA), London, United Kingdom, substantial damage
- [NTSB LAX72IL014](https://openairdocs.org/ntsb/LAX72IL014), Aug 24, 1971: Boeing 747 (N748PA), Los Angeles, CA, incident, minor damage
- [NTSB DCA72AZ002](https://openairdocs.org/ntsb/DCA72AZ002), Jul 30, 1971: Boeing 747 (N747PA), San Frncsco, CA, substantial damage
- [NTSB NYC71AN088](https://openairdocs.org/ntsb/NYC71AN088), Feb 7, 1971: Boeing 747 (N750PA), Wilmington, NC, minor damage
- [NTSB NYC71AN054](https://openairdocs.org/ntsb/NYC71AN054), Nov 4, 1970: Boeing 747 (N739PA), Nantucket, MA, minor damage
- [NTSB SEA70IS044](https://openairdocs.org/ntsb/SEA70IS044), May 24, 1970: Boeing 747 (N7470), Moses Lake, WA, incident, minor damage
- [NTSB NYC70IN085](https://openairdocs.org/ntsb/NYC70IN085), Feb 9, 1970: Boeing 747 (N736PA), N.Atlantic Ocean (Atlantic Ocean), incident, no damage

## FAA accident and incident reports (37)

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.

- [Incident 20150309003599I](https://openairdocs.org/incident/20150309003599I), Mar 9, 2015: Boeing 747-121 (N747GE), Victorville, CA, Minor damage. The test engine general electric passport -20 15,00 pounds thrust cought fire, fuel was shut off, and fire suppression used.
- [Incident 20050613013899I](https://openairdocs.org/incident/20050613013899I), Jun 13, 2005: Boeing 747121 (N747GE), Victorville, CA, Minor damage. (-23) Boeing 747 flying testbed aircraft scraped #2 engine nacelle on landing. Number two engine (GP7200) is much larger than the p&w JT9D-7A, 747 engine.…
- [Incident 20040707014739I](https://openairdocs.org/incident/20040707014739I), Jul 7, 2004: Boeing 747121 (N480EV), New York, NY, No damage. (-23) Pilots required to perform one takeoff at max takeoff power and record parameters. After takeoff number 4 engine fire switch illuminated, bell sounded,…
- [Incident 20021210033209I](https://openairdocs.org/incident/20021210033209I), Dec 10, 2002: Boeing 747121 (N747GE), Honolulu, HI, Minor damage. (-23) During approach noticed smoke trailing from no. 2 engine. After rollout, fire observed in no. 2 engine pylon. Crew evacuated aircraft from R2 door.…
- [Incident 19970522043209I](https://openairdocs.org/incident/19970522043209I), May 22, 1997: Boeing 747121 (N747GE), Mojave, CA, Minor damage. Turbine blade failure during cold soak test. Number 4 bearing support damage and exhaust plug seperation.
- [Incident 19951215046049I](https://openairdocs.org/incident/19951215046049I), Dec 15, 1995: Boeing 747238B (N615FF), Baltimore, MD. Narrative: aircraft held at jfk due to weather. Weather at the alternate, phl, was also below minimums. After coordinating with company dispatcher, flight…
- [Accident 19951023037029A](https://openairdocs.org/incident/19951023037029A), Oct 23, 1995: Boeing 747121 (N613FF), Miami, FL, Substantial damage. NR4 engine uncontained failure on takeoff roll. Aborted. Stopped safely. Engine fire. Put out. Debris damage.
- [Incident 19940919038919I](https://openairdocs.org/incident/19940919038919I), Sep 19, 1994: Boeing 747121 (N681UP), Portland, OR, Minor damage. Hydraulic failure on approach. Landed ok. Flex line at trunnion leaked. Powered steering. Bogie tilt damaged.
- [Incident 19940412022939I](https://openairdocs.org/incident/19940412022939I), Apr 12, 1994: Boeing 747100 (N474EV), Travis Afb, CA, Minor damage. After landing found 50 percent NR6 spoiler missing. When or why unknown. Appears to be delamination.
- [Accident 19930331007479A](https://openairdocs.org/incident/19930331007479A), Mar 31, 1993: Boeing 747121 (N473EV), Anchorage, AK, Substantial damage. Engine fell off in severe turbulence on climbout. Pylon failed due stress and fatigue crack. Wind shear reported.
- [Incident 19921002047939I](https://openairdocs.org/incident/19921002047939I), Oct 2, 1992: Boeing 747121 (N683UP), Honolulu, HI, Minor damage. Pilot struck a fence on a taxiway while taxiing for takeoff. Dark night and pilot was not advised of fence.
- [Incident 19920927044029I](https://openairdocs.org/incident/19920927044029I), Sep 27, 1992: Boeing 747121 (N681UP), Ontario, CA, Minor damage. Unable to maintain pressurization. Diverted to Ontario. Found L-1 aft crank arm door locking device had sheared.
- [Incident 19920501024669I](https://openairdocs.org/incident/19920501024669I), May 1, 1992: Boeing 747121 (N604FF), Camp Douglas, WI. While attempting to turn around at end of runway the rear landing gear truck slid off into soft ground.
- [Incident 19920319014969I](https://openairdocs.org/incident/19920319014969I), Mar 19, 1992: Boeing 747121 (N681UP), Louisville, KY, Minor damage. Wing tip struck the blast fence while making a turn. Under the direction of a marshaller.
- [Incident 19910617028329I](https://openairdocs.org/incident/19910617028329I), Jun 17, 1991: Boeing 747121 (N742PA), Houston, TX. Engine failure. Diverted to Houston. Replaced NR1 engine fuel control unit line PS4.
- [Incident 19900620064489I](https://openairdocs.org/incident/19900620064489I), Jun 20, 1990: Boeing 747121 (N474EV), Birmingham, AL, Minor damage. NR4 engine cowling separated en route. Returned and landed safely. Fuel leaking from engine during taxi.
- [Accident 19881221055379A](https://openairdocs.org/incident/19881221055379A), Dec 21, 1988: Boeing 747121 (N739PA), Lockerbie, SK, Destroyed, 275 fatal. No communication with the crew. Reports suggest inflight failure shortly after departure.
- [Incident 19860609064659I](https://openairdocs.org/incident/19860609064659I), Jun 9, 1986: Boeing 747121 (N733PA), Lima, PE. Requested landing because of no overflight authority. Landed and departed without incident.
- [Incident 19851007059009I](https://openairdocs.org/incident/19851007059009I), Oct 7, 1985: Boeing 747121 (N749PA), San Francisco, CA, Minor damage. Vibration after takeoff due to separation of left wing leading edge flap. Dumped fuel and returned.
- [Incident 19841114067119I](https://openairdocs.org/incident/19841114067119I), Nov 14, 1984: Boeing 747121 (N742PA), Gander, CN, Minor damage. Engine shutdown due to low oil pressure. Fire noted in gear box. Hole in gear box caused by magnesium fire.
- [Incident 19840912052949I](https://openairdocs.org/incident/19840912052949I), Sep 12, 1984: Boeing 747121 (N749PA), Sherbrooke, CA. False fire indication in baggage compartment. Captain fired extinguishers. Faulty electronic panel replaced.
- [Incident 19820607027779I](https://openairdocs.org/incident/19820607027779I), Jun 7, 1982: Boeing 747121 (N733PA), Agana, Guam. On takeoff, #4 compressor stalled, EGT excessive. Engine shut down, fuel dumped. Molten metal in #4 tailpipe.
- [Incident 19811106079229I](https://openairdocs.org/incident/19811106079229I), Nov 6, 1981: Boeing 747121 (N742PA), Agana, Guam. Aircraft returned when engine backfired and EGT peaked off scale. Metal found in tail pipe nr 1 engine.
- [Incident 19810801054289I](https://openairdocs.org/incident/19810801054289I), Aug 1, 1981: Boeing 747121 (N739PA), Agana, Guam. Captain shut down #4 engine due to high temp indication. Maintenance could find no malfunction.
- [Incident 19810720054829I](https://openairdocs.org/incident/19810720054829I), Jul 20, 1981: Boeing 747121 (N742PA), San Francisco, CA, Minor damage. Number 4 engine was shut down due to a fire warning light activation. Found bad alternator constant speed drive.
- [Incident 19810302017309I](https://openairdocs.org/incident/19810302017309I), Mar 2, 1981: Boeing 747121 (N738PA), New Tokyo, JA, Minor damage. Right no. 5 flap track fairing departed aircraft on approach. Left inboard flap damaged.
- [Incident 19800229028119I](https://openairdocs.org/incident/19800229028119I), Feb 29, 1980: Boeing 747121 (N742PA), Houston, TX. Engine flameout, unable to restart. Engine vane control unison ring stuck open.
- [Incident 19800228030359I](https://openairdocs.org/incident/19800228030359I), Feb 28, 1980: Boeing 747121 (N742PA), Houston, TX. Nr 2 engine shutdown due to low oil pressure, low quanity and high temperature. Replace damaged o ring.
- [Incident 19791105054899I](https://openairdocs.org/incident/19791105054899I), Nov 5, 1979: Boeing 747121 (N737PA), Gander, CN. Aircraft had temporary flame out of nr 1 engine due to non standard fuel management necessitated by system problem.
- [Incident 19791010051629I](https://openairdocs.org/incident/19791010051629I), Oct 10, 1979: Boeing 747121 (N737PA), Houston, TX. Engine shutdown due to loss of oil. Csd and generator had been removed, #2 drain lines not capped.
- [Incident 19790404013539I](https://openairdocs.org/incident/19790404013539I), Apr 4, 1979: Boeing 747121 (N742PA), Jamaica, NY, Minor damage. Engine shut down due to fire warning light, returned. Loose 3 nut in fuel pressure transmitter line.
- [Incident 19781107023059I](https://openairdocs.org/incident/19781107023059I), Nov 7, 1978: Boeing 747/ (N737PA), Houston, TX. Engine shutdown in climb due to loss of oil quantity. Oil cap had come loose.
- [Incident 19781019030639I](https://openairdocs.org/incident/19781019030639I), Oct 19, 1978: Boeing 747121 (N748PA), Osaka, JA, Minor damage. Engine fire warning after hearing explosion. Engine shut down. Cause was loose stopnut in fuel line.
- [Incident 19780802047719I](https://openairdocs.org/incident/19780802047719I), Aug 2, 1978: Boeing 747121 (N737PA), Taipei, CH. Engine shutdown after fire warning. Discharged fire bottle. Hydraulic pump pressure line replaced.
- [Incident 19780725039329I](https://openairdocs.org/incident/19780725039329I), Jul 25, 1978: Boeing 747121 (N737PA), San Francisco, CA. Engine failure after takeoff. At max gross. Made right turn, against tower instruction. Was down to 100 ft.
- [Incident 19780519033989I](https://openairdocs.org/incident/19780519033989I), May 19, 1978: Boeing 747/ (N733PA), Miami, FL, Substantial damage. Jetway was extended into side of aircraft as it taxiied into the parking area.
- [Incident 19780116003199I](https://openairdocs.org/incident/19780116003199I), Jan 16, 1978: Boeing 747121 (N742PA), Jamaica, NY, Minor damage. After replacing start valve and motorizing engine fire was observed in tail pipe. Fire confined to engine.

## Service difficulty reports (3,030, newest 50)

As reported by operators and repair stations, by the model named in the report.

- [SDR UPS08452094](https://openairdocs.org/sdr/UPS08452094), Apr 29, 2008: SKIN. CORRODED. LOWER BELLY SKIN CORROSION. REPAIR DOUBLER INSTALLED AT STA 1780 SRT 50R PER SRM 53-30-03 FIG 1. CATEGORY B REPAIR REQUIRES REPEAT INSPECTION AT 15000 RIGHT CYC
- [SDR UPS08451553](https://openairdocs.org/sdr/UPS08451553), Jan 24, 2008: LIGHT. INOPERATIVE. EMERGENCY LIGHT ABOVE SLIDE IN COCKPIT INOP. DEFERRED PER MEL 33-15 ON ITEM M367673. SLAVED IN NEW BATTERY PACK POWER SUPPLY, NO HELP. REMOVED AND REPLACED EMER
- [SDR EIA2007207](https://openairdocs.org/sdr/EIA2007207), Dec 10, 2007: BATTERY PACK. DISCHARGED. CREW EXIT DOOR UPPER DECK SILL LIGHT INOP. BATTERY PACK OF X327 UPPER DECK AT STATION 403 RT REPLACED.
- [SDR UPS07451218](https://openairdocs.org/sdr/UPS07451218), Nov 26, 2007: ELECTRONIC UNIT. SMOKE. FUEL FLOW ELECTRONICS UNIT SMOKING. REMOVED AND REPLACED FUEL FLOW ELECTRONICS UNIT PER MM 73-31-02. OPS CHECK NORMAL.
- [SDR UPS07451203](https://openairdocs.org/sdr/UPS07451203), Nov 26, 2007: BATTERY PACK. DISCHARGED. AF L1 DOOR ENTRY EMERGENCY LIGHT WOULD NOT TEST. REMOVED AND REPLACED EMERGENCY LIGHT/BATTERY PACK ASSY WITH REF TO MM 33-51-07. OPS CHECK GOOD PER SAME.
- [SDR UPS07450948](https://openairdocs.org/sdr/UPS07450948), Oct 16, 2007: WEB. CRACKED. INSPECTION TYPE:C NWW RT SIDE PANEL STA 294 WL 170 SIDE PANEL WEB 1EA SUSPECT CRACK INDICATION FOUND ADJACENT LWR SIDE OF EXTERNAL STRAP APPROX. 0.5" LENGTH CRA
- [SDR EIA2007134](https://openairdocs.org/sdr/EIA2007134), Jun 28, 2007: LIGHT. NO TEST. L/5 EMERGENCY LIGHT INOP. REMOVED AND REPLACED L/5 EMERGENCY LIGHT, OPS CK`D NORMAL PER B747 MM 33-51-06.
- [SDR EIA2007133](https://openairdocs.org/sdr/EIA2007133), Jun 28, 2007: LIGHT. NO TEST. EMERGENCY LIGHT AT THE TOP OF THE STAIRS GOES ON AND GOES RIGHT OUT. REPLACED EMERGENCY LIGHT AT TOP OF STAIRS, OPS CK`D NORMAL PER B747 MM 33-51-07.
- [SDR UPS07449805](https://openairdocs.org/sdr/UPS07449805), May 13, 2007: LAMP. INOPERATIVE. EMERGENCY LIGHT CONTROL SWITCH INDICATOR 1/2 INOP. RELAMPED EMERGENCY, OPS CHECK GOOD.
- [SDR UPS07449766](https://openairdocs.org/sdr/UPS07449766), May 7, 2007: PRESSURE PANEL. CRACKED. INSPECTION TYPE:C ULTRASONIC INSP FOUND CRACK INDICATION AT BS 333 TO BS 334 BL 0 LEFT SIDE 1 INCH APPROX IN - LENGTH (CRACK LENGTH 0.68"). A REPAIR DOUBLER ADD
- [SDR EIA2007070](https://openairdocs.org/sdr/EIA2007070), Apr 7, 2007: BATTERY PACK. DISCHARGED. UPPER DECK EMERGENCY EXIT SIGN LIGHT AT CREW DOOR INOP. REQUIRES CHARGER AND BATTERY. REPLACED BATTERY CHARGER AND BATTERY PACK IN UPPER DECK EMERGENCY EXIT SIG
- [SDR UPS07449578](https://openairdocs.org/sdr/UPS07449578), Mar 29, 2007: MODULE. UNKNOWN. HYD SYSTEM 3 FAILURE PRESSURE & QUANTITY ZERO DURING FLAP RETRACTION. HYD SYSTEM PR & QT LIGHTS ON. REMOVED AND REPLACED MODULAR ASSY & LEAK CHECK IAW 29-11-23.
- [SDR UPS07449433](https://openairdocs.org/sdr/UPS07449433), Mar 5, 2007: BEAR STRAP. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER CRACK REVEALED AT THE EDGE OF BEAR STRAP. CRACK LENGTH 2.5 INCHES APPROX. RIGHT NR 3 PAX DOOR CUTO
- [SDR UPS07449488](https://openairdocs.org/sdr/UPS07449488), Mar 1, 2007: FLOOR SUPPORT. CRACKED. INSPECTION TYPE:C M/D BS 1220 LBL 98.8 FLOOR WEB SUPPORT FOUND CRACK AS MARKED. CRACK LENGTH .375 INCH. M/D BS 1220 LBL 98.8 FLOOR WEB SUPPORT REPAIRED AS PER R
- [SDR UPS07449497](https://openairdocs.org/sdr/UPS07449497), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT H) FOUND THROUGH THICKNESS CRACKED AT 7 O/C POSITION AND .0625 INCH CRACK
- [SDR UPS07449496](https://openairdocs.org/sdr/UPS07449496), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT G) FOUND CRACKED AT BEAR STRAP .125 INCH TO UPWARD AT 11 O/C POSITION (LO
- [SDR UPS07449495](https://openairdocs.org/sdr/UPS07449495), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT D) FOUND CRACKED AT SKIN .125 INCH APPROX RUNNING FWD AT 5 O/C POSITION (
- [SDR UPS07449494](https://openairdocs.org/sdr/UPS07449494), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1E FASTENER HOLE (IDENT F) FOUND CRACKED AT BEAR STRAP .125 INCH APPROX RUNNING UPWARD AT 12 O/C P
- [SDR UPS07449493](https://openairdocs.org/sdr/UPS07449493), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT E) FOUND CRACKED AT SKIN AND BEAR STRAP .125 INCH TO UPWARD AT 12 O/C POS
- [SDR UPS07449492](https://openairdocs.org/sdr/UPS07449492), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD COVER CORNER 1EA FASTENER HOLE (IDENT B) FOUND CRACKED AT BEAR STRAP .0625 INCH TO FWD AT 5 O/C POSITION (LOOKI
- [SDR UPS07449491](https://openairdocs.org/sdr/UPS07449491), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C 1EA FASTENER HOLE (IDENT A) FOUND CRACKED AT RIGHT NR 3 PAX DOOR CUTOUT AREA FWD LOWER CORNER AT SKIN I/B FACE CRACK LENGTH 0.040 INCH APPROX 
- [SDR UPS07449490](https://openairdocs.org/sdr/UPS07449490), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT C) FOUND CRACKED AT BEAR STRAP .0625 INCH AT 11 O/C POSITION AND ANOTHER 
- [SDR UPS07449457](https://openairdocs.org/sdr/UPS07449457), Feb 28, 2007: SKIN. CRACKED. INSPECTION TYPE:C RIGHT NR 3 PAX DOOR CUTOUT FWD LOWER CORNER 1EA FASTENER HOLE (IDENT I) FOUND CRACK THRU THICKNESS AT 5:00 O/C POSITION (LOOKING I/B) CRACK LE
- [SDR UPS07449467](https://openairdocs.org/sdr/UPS07449467), Feb 27, 2007: FRAME. CRACKED. INSPECTION TYPE:C M/D BS 820 STR 11-12R FRAME FOUND CRACK. CRACK LENGTH .875 - 1 INCH. M/D BS 820 STR 11-12R FRAME REPAIRED AS PER RS R53-12-35770. CONTINUE INS
- [SDR UPS07449425](https://openairdocs.org/sdr/UPS07449425), Feb 27, 2007: STRINGER. CRACKED. INSPECTION TYPE:C M/D BS 820-840 STR 10 LT STRINGER ATT WEB FOUND CRACKED. CRACK LENGTH .75 INCH. M/D BS 820-840 STR 10 LT ATTACH WEB REPAIRED AS PER SRM 51-40-
- [SDR UPS07449423](https://openairdocs.org/sdr/UPS07449423), Feb 27, 2007: STRINGER. CRACKED. INSPECTION TYPE:C M/D BS 820-840 S10 RIGHT STRINGER ATT WEB FOUND CRACK. CRACK LENGTH .625 INCH. M/D BS 820-840 STR 10R ATTACH WEB REPAIRED AS PER SRM 51-40-03 
- [SDR EIA2007020](https://openairdocs.org/sdr/EIA2007020), Feb 22, 2007: SMOKE DETECTOR. NO TEST. FOUND LOWER DECK NR 4 SMOKE DETECTOR WILL NOT TEST. REPLACED SMOKE DETECTOR IAW MM 26-16-00, ALL TESTS OK.
- [SDR UPS07449313](https://openairdocs.org/sdr/UPS07449313), Feb 20, 2007: WEB. CRACKED. INSPECTION TYPE:C AFT CARGO COMPT LT VERTICAL WEB FOUND CRACKED AT STA 1500 TO STA 1520 STR 34L AFT EDGE AREA. CRACK LENGTH .75 INCH. VERTICAL WEB REPLACED PER 
- [SDR UPS07449231](https://openairdocs.org/sdr/UPS07449231), Feb 19, 2007: SKIN. CRACKED. INSPECTION TYPE:C BS 460 STR 15R FOUND ONE EA FASTENER HOLE CRACKED AT SKIN BOND DOUBLER & STRAP. FX BS 460 STR 15R SKIN BOND DOUBLER & STRAP REPAIRED AS PER HX
- [SDR UPS07449412](https://openairdocs.org/sdr/UPS07449412), Feb 17, 2007: PRESSURE PANEL. CORRODED. INSPECTION TYPE:C LEFT BODY LANDING GEAR W/W PRESSURE DECK ATT WEB FOUND SURFACE CORROSION AT STA 1403 LBL 125. CORROSION BLEND OUT 0.034 X 1 X 1 INCH EXCEED SR
- [SDR UPS07449454](https://openairdocs.org/sdr/UPS07449454), Feb 16, 2007: STRINGER. CRACKED. INSPECTION TYPE:C BULK CARGO COMPT STRINGER FOUND CRACK AT STA 2185 STR 51R. CRACK LENTH .375 INCH. BULK CARGO COMPT BS 2185 STR 51R REPAIRED AS PER RS R53-11-3
- [SDR UPS07449443](https://openairdocs.org/sdr/UPS07449443), Feb 16, 2007: SKIN. CRACKED. INSPECTION TYPE:C M/D R3 DOOR SKIN FOUND CRACKED APPROX AT CTR LOWER PORTION. CRACK LENGTH .375 INCH. M/D R3 DOOR SKIN AT CTR LOWER PORTION AREA REPAIRED AS PER
- [SDR UPS07449436](https://openairdocs.org/sdr/UPS07449436), Feb 16, 2007: DOOR FRAME. CRACKED. INSPECTION TYPE:C RIGHT BS 2231 FRAME AT DOOR NR 5 BETWEEN S24R-25R FOUND 2EA HOLE CRACK. CRACK LENGTH .125 INCH, .25 INCH AND .1875 INCH. M/D RIGHT BS 2231 FRA
- [SDR UPS07449419](https://openairdocs.org/sdr/UPS07449419), Feb 16, 2007: SHEAR TIE. CRACKED. INSPECTION TYPE:C LEFT WING WS 469.8 FWD OF UPPER STR 29 SHEAR TIES FOUND CRACKED AS MARKED. CRACK LENGTH .5 INCH. LEFT WING WS 469.8 FWD OF UPPER STR 29 SHEAR 
- [SDR UPS07449416](https://openairdocs.org/sdr/UPS07449416), Feb 16, 2007: DOOR FRAME. CRACKED. INSPECTION TYPE:C M/D L5 DOOR UPPER FRAME FOUND CRACKED AT SEVERAL FASTENER HOLE AREA. CRACK LENGTH .375 INCH. M/D L5 DOOR UPPER FRAME REPLACED AND INSTALLED AS
- [SDR UPS07449401](https://openairdocs.org/sdr/UPS07449401), Feb 16, 2007: SUPPORT. CORRODED. INSPECTION TYPE:C BULK CARGO COMPT - STA 2080 LT SIDEWALL SUPPORT ANCHOR NUT AREA FOUND CORRODED AS MARKED. CORROSION BLEND OUT 0.038" X 1" X 1" EXCEED SRM 53-1
- [SDR UPS07449388](https://openairdocs.org/sdr/UPS07449388), Feb 16, 2007: FRAME. CRACKED. INSPECTION TYPE:C M/D R5 DOOR UPPER FRAME FOUND CRACKED AT SEVERAL FASTENER HOLE AREA. CRACK LENGTH .75 INCH. FRAME REPLACED AS PER SRM 51-10-01 PG 9 AND INSTAL
- [SDR UPS07449378](https://openairdocs.org/sdr/UPS07449378), Feb 16, 2007: SUPPORT. CORRODED. INSPECTION TYPE:C BULK CARGO COMPT - STA 1960 LEFT SIDEWALL SUPPORT ANCHOR NUT AREA FOUND CORRODED AS MARKED. CORROSION BLEND OUT 0.049" X .5" X 1" EXCEED SRM 5
- [SDR UPS07449376](https://openairdocs.org/sdr/UPS07449376), Feb 16, 2007: SKIN. CRACKED. INSPECTION TYPE:C M/D L3 DOOR SKIN FOUND CRACKED APPROX AT CTR LOWER PORTION. CRACK LENGTH .75 INCH. L3 DOOR SKIN REPAIRED AS PER SRM 52-10-02 FIG 9.
- [SDR UPS07449347](https://openairdocs.org/sdr/UPS07449347), Feb 16, 2007: SILL. CRACKED. INSPECTION TYPE:C U/D RIGHT DOOR SILL BS 400 RBL TO FLOOR SUPPORT CHORD FOUND CRACKED. CRACK LENGTH: .75 INCH. FLOOR SUPPORT CHORD REPAIRED AS PER SRM 51-40-04 
- [SDR UPS07449319](https://openairdocs.org/sdr/UPS07449319), Feb 16, 2007: SUPPORT FITTING. CRACKED. INSPECTION TYPE:C FWD CARGO COMPT AFT FIXED END STOP SUPPORT FITTING FOUND CRACK AT STA 980 RBL 45. CRACK LENGTH .75 INCH. FWD CARGO COMPT AFT FIXED END STOP SU
- [SDR UPS07449310](https://openairdocs.org/sdr/UPS07449310), Feb 16, 2007: WEB. CRACKED. INSPECTION TYPE:C U/D RIGHT CREW DOOR SILL AREA I/B VERTICAL WEB AND ANGLE FOUND CRACKED. CRACK LENGTH .5 INCH. VERTICAL WEB AND ANGLE REPLACED PER SRM 51-10-01
- [SDR UPS07449303](https://openairdocs.org/sdr/UPS07449303), Feb 16, 2007: STRINGER. CRACKED. INSPECTION TYPE:C M/D BS 380 S14EL FOUND CRACK. CRACK LENGTH .25 INCH. M/D BS 360-380 STRINGER S14EL REPLACED AS PER SRM 51-10-01 PG 9 AND INSTALLED AS PER SRM 
- [SDR UPS07449297](https://openairdocs.org/sdr/UPS07449297), Feb 16, 2007: FLOOR SUPPORT. CORRODED. INSPECTION TYPE:C BULK CARGO COMPT LEFT STA 1940 LBL 55 FLOOR SUPPORT FOUND CORRODED CRACK AS MARKED. CORROSION BLEND OUT 0.025" X .5" X 1" EXCEED SRM 53-10-01 
- [SDR UPS07449295](https://openairdocs.org/sdr/UPS07449295), Feb 16, 2007: FLOOR SUPPORT. CORRODED. INSPECTION TYPE:C BULK CARGO COMPT LEFT STA 1920 TO STA 1940 LBL 55" FLOOR SUPPORT UNDER ANCHOR NUT FOUND CORRODED AS MARKED. CORROSION BLEND OUT 0.025" X .5" X
- [SDR UPS07449294](https://openairdocs.org/sdr/UPS07449294), Feb 16, 2007: SUPPORT. CORRODED. INSPECTION TYPE:C BULK CARGO COMPT SLOPE PANEL SUPPORT SEVERAL LOCATION FOUND SURFACE CORROSION AT STA 1940 TO STA 2045 LBL 60 ANCHOR NUT AREA. CORROSION BLEND 
- [SDR UPS07449291](https://openairdocs.org/sdr/UPS07449291), Feb 16, 2007: FLOORBEAM. CRACKED. INSPECTION TYPE:C BULK CARGO COMPT M/D FLOORBEAM LOWER WEB FOUND CRACK AT 1940 RBL 64". CRACK LENGTH .5 INCH. BULK CARGO COMPT M/D FLOORBEAM LOWER WEB REPAIRED 
- [SDR UPS07449489](https://openairdocs.org/sdr/UPS07449489), Feb 15, 2007: SKIN. CORRODED. INSPECTION TYPE:C M/D BS 1210-1220 LBL 97 WING CTR SECTION TOP SURFACE FOUND CORROSION. CORROSION BLEND OUT 0.043 X .5 X 2 INCHES EXCEED SRM LIMIT. M/D BS 1210-
- [SDR UPS07449437](https://openairdocs.org/sdr/UPS07449437), Feb 15, 2007: REVEAL. CRACKED. INSPECTION TYPE:C RIGHT BS 2231 FRAME AREA 2EA FASTENER HOLE CRACK FOUND AT REVEAL BETWEEN S25R AND S26R. CRACK LENGTH .25 INCH, .125 INCH, AND .1875 INCH. M/D 
- [SDR UPS07449403](https://openairdocs.org/sdr/UPS07449403), Feb 15, 2007: ATTACH FITTING. CRACKED. INSPECTION TYPE:C RIGHT WING L/E RIB TO FRONT SPAR UPPER CHORD ATT FITTING AT ILES 340 FOUND CRACKED. CRACK LENGTH .375 INCH. RIGHT WING L/E RIB TO FRONT SPAR U

All 3,030: https://openairdocs.org/model/boeing-747-121/reports.md

## STCs that may be installed (OpenAirDocs) (465, first 50)

Approved for this model: the STC's model list names it on its data sheet, or a series that includes it. In force first, then newest. The registry doesn't record which STCs an aircraft has.

- [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 ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc
- [STC ST00273AT](https://openairdocs.org/stc/ST00273AT): Installation of an Airshow 210 entertainment 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 SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight 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 SA2845WE](https://openairdocs.org/stc/SA2845WE): Installation of logo light assembly. The Boeing Company
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC SA2019NM](https://openairdocs.org/stc/SA2019NM): Installation of overhead stowage bins and sidewalls for models. Safran Cabin Inc
- [STC SA2193WE](https://openairdocs.org/stc/SA2193WE): Installation of entree cart 802000, tray cart 803000, liquor cart 804000, and waste cart 805000. 747-122. Safran Cabin Inc
- [STC SA2365NM](https://openairdocs.org/stc/SA2365NM): Installation of the Superbin Interior retrofit kit. Safran Cabin Inc
- [STC SA2490NM](https://openairdocs.org/stc/SA2490NM): Installation of C&D Interiors heated food service cart. Safran Cabin Inc
- [STC SA2904NM](https://openairdocs.org/stc/SA2904NM): Interior Rework Installation(CRAF) kit. Safran Cabin Inc
- [STC SA3084NM](https://openairdocs.org/stc/SA3084NM): Installation of class divider partition, P/N 11745-1-1. Safran Cabin Inc
- [STC SA3156NM](https://openairdocs.org/stc/SA3156NM): Installation of auxiliary galley. Safran Cabin Inc
- [STC SA3923NM](https://openairdocs.org/stc/SA3923NM): Installation of galleys, closets, under-stair module, and aft partition. Safran Cabin 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 SA5065NM](https://openairdocs.org/stc/SA5065NM): Installation of P/N 14740-1 2-place crew rest module. (747-168). Safran Cabin Inc
- [STC SA5067NM](https://openairdocs.org/stc/SA5067NM): Installation of L.H. galley G1L. Safran Cabin Inc
- [STC SA5109NM](https://openairdocs.org/stc/SA5109NM): Installation of modular lavatories. Safran Cabin Inc
- [STC SA5157NM](https://openairdocs.org/stc/SA5157NM): Installation of sidewall panels. Safran Cabin Inc
- [STC SA5883NM](https://openairdocs.org/stc/SA5883NM): Installation of video stowage cabinet P/N 6451001-102. Safran Cabin Inc
- [STC ST00496LA](https://openairdocs.org/stc/ST00496LA): Installation of galley, P/N 926100-101. (for other models see C&D Interiors index list Number 926). Safran Cabin Inc
- [STC ST00577LA](https://openairdocs.org/stc/ST00577LA): Installation of Interior Installation-Upper Deck. Safran Cabin Inc
- [STC ST00578LA](https://openairdocs.org/stc/ST00578LA): Installation of Interior Installation-Main Deck. Safran Cabin Inc
- [STC ST00579LA](https://openairdocs.org/stc/ST00579LA): Installation of lavatories and partition. Safran Cabin Inc
- [STC SA3417NM](https://openairdocs.org/stc/SA3417NM): Installation of floor proximity emergency escape path marking system. Bruce Aerospace Inc
- [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 ST01326CH](https://openairdocs.org/stc/ST01326CH): Installation of Automatic Dependent Surveillance-Broadcast (ADS-B) antennas. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST01563CH](https://openairdocs.org/stc/ST01563CH): Installation of a Honeywell Communications Management Unit and a VHF communication system. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST01683CH](https://openairdocs.org/stc/ST01683CH): Installation of a Universal Avionics Systems Corporation multi-function display. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST01841CH](https://openairdocs.org/stc/ST01841CH): Installation of GPS antenna provisions. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST01877CH](https://openairdocs.org/stc/ST01877CH): Installation of a Honeywell Enhanced Ground Proximity Warning System per Electronic Cable Specialists Master Data List ECS-201546 latest FAA approved revision. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST01893CH](https://openairdocs.org/stc/ST01893CH): Installation of a Universal Avionics Systems Corporation (UASC) Terrain Awareness and Warning System (TAWS) and UASC UNS-1F Flight Management System (FMS) as a position source for TAWS or installation of a UASC TAWS and triple UASC FMS. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST02077CH](https://openairdocs.org/stc/ST02077CH): Installation of a L-3 Communications PVI 600 Multi-Function Display in accordance with Electronic Cable Specialists Master Data List ECS-202760, Revision A, dated November 3, 2004, or later FAA approved revision. Amphenol Cable and Interconnect Technologies Inc
- [STC ST02182CH](https://openairdocs.org/stc/ST02182CH): Installation of elementary or enhanced surveillance Mode S transponders. Amphenol Cable and Interconnect Technologies Inc
- [STC ST00079IB](https://openairdocs.org/stc/ST00079IB): Integration of Halon-free Portable Fire Extinguisher HAFEX. UMLAUT ENGINEERING GMBH
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST00126IB](https://openairdocs.org/stc/ST00126IB): Replacement of Halon agent with alternate Halon-free Portable Fire Extinguisher agent. AMAC Aerospace Switzerland AG
- [STC ST02302CH](https://openairdocs.org/stc/ST02302CH): Install ERDA model 7004 HI-LO table with slide top. Collins Aerospace
- [STC ST01912LA](https://openairdocs.org/stc/ST01912LA): Installation of internal tanks, associated systems and support structure for the aerial dispersant of liquids. Global Supertanker Aviation LLC
- [STC SA8433SW](https://openairdocs.org/stc/SA8433SW): Installation of message processing and classified communications system provisions. L3Harris Technologies Integrated Systems L.P
- [STC ST00105IB](https://openairdocs.org/stc/ST00105IB): Introduction of Activation of Wireless Charging Systems for Portable Electronic Devices. AMAC AEROSPACE SWITZERLAND AG
- [STC ST03973AT](https://openairdocs.org/stc/ST03973AT): Installation of the EMTEQ LED Anti-collision Light. Woven Electronics LLC
- [STC ST01837CH](https://openairdocs.org/stc/ST01837CH): Installation of a Honeywell RESCU 406AF Emergency Locator Transmitter (ELT) system. Honeywell International Inc
- [STC ST00062IB](https://openairdocs.org/stc/ST00062IB): Installation of GPS/SBAS sensors/antenna: two (TSO-145c) CMC Esterline CMA-3024 GPS/SBAS sensors, (TSO-C190) antennas, and associated wiring. APTOZ EHF

All 465: https://openairdocs.org/model/boeing-747-121/stcs.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Boeing 747-123](https://openairdocs.org/model/boeing-747-123): 2 registered aircraft, registry code 1384873
- [Boeing 747-131](https://openairdocs.org/model/boeing-747-131): 1 registered aircraft, registry code 1384881
- [Boeing 747-128](https://openairdocs.org/model/boeing-747-128): 1 registered aircraft, registry code 1384894
- [Boeing 747-100](https://openairdocs.org/model/boeing-747-100): 0 registered aircraft, registry code 1384825
- [Boeing 747-148](https://openairdocs.org/model/boeing-747-148): 0 registered aircraft, registry code 1384833
- [Boeing 747-122](https://openairdocs.org/model/boeing-747-122): 0 registered aircraft, registry code 1384872
- [Boeing 747-124](https://openairdocs.org/model/boeing-747-124): 0 registered aircraft, registry code 1384874
- [Boeing 747-129](https://openairdocs.org/model/boeing-747-129): 0 registered aircraft, registry code 1384879
- [Boeing 747-130](https://openairdocs.org/model/boeing-747-130): 0 registered aircraft, registry code 1384880
- [Boeing 747-132](https://openairdocs.org/model/boeing-747-132): 0 registered aircraft, registry code 1384882
- [Boeing 747-136](https://openairdocs.org/model/boeing-747-136): 0 registered aircraft, registry code 1384883
- [Boeing 747-156](https://openairdocs.org/model/boeing-747-156): 0 registered aircraft, registry code 1384884

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