# Boeing 747-251B

- Type: Aircraft model (FAA registry)
- Registry code: 1384892
- Manufacturer (registry): BOEING
- Model: 747-251B
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 4 · Turbo-fan
- Seats: 495
- Weight class: 20,000 lb and over
- Cruise speed: 450 mph
- Certification: Type certificated
- Data sheet: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) (OpenAirDocs)
- Holder: The Boeing Company
- Registered aircraft: 0
- Page: https://openairdocs.org/model/boeing-747-251b

Model codes come from the FAA registry's reference file. ADs are matched to them by model name and maker.

## 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 2025-15-07](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 2025-02-05](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 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 2021-17-06](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 2021-08-04](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 2020-15-14](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 2018-09-12](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 2017-18-06](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 2017-02-04](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 2016-25-05](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 2016-05-12](https://openairdocs.org/ad/2016-05-12): Fuselage · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 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 2015-15-11](https://openairdocs.org/ad/2015-15-11): Fuselage · Boeing 747-100B Series, 747-100B SUD Series, 747-200B Series and 8 more. Effective Sep 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

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 2022-06-16](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 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 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 2012-15-13](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 2012-13-08](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 2007-23-18](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 2007-19-19](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 2007-16-19](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 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 2006-10-04](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 2006-05-06](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 2005-15-08](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 2005-04-51](https://openairdocs.org/ad/2005-04-51) (historical): Body skin between body stations (BS) 420 and 460 · Boeing 747-100B SUD Series, 747-200B Series, 747-200C Series and 2 more. Effective Mar 9, 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 2003-20-08](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
- [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 2001-24-02](https://openairdocs.org/ad/2001-24-02) (historical): Shoulder Restraint Harness Attachment · Boeing 707-100 Long Body, 707-100B Long Body, 707-300 Series (all) and 20 more. Effective Jan 4, 2002

All 577: https://openairdocs.org/model/boeing-747-251b/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

None registered with this model now.

## NTSB investigations (5)

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 DCA05MA095](https://openairdocs.org/ntsb/DCA05MA095), Aug 19, 2005: Boeing 747-200 (N627US), Agana, substantial damage. Probable cause: the flight crews' failure to verify that the number of landing gear annunciations on the second officer’s panel was consistent with the number specified in the abnormal/emergency procedures…
- [NTSB LAX96IA087](https://openairdocs.org/ntsb/LAX96IA087), Jan 5, 1996: Boeing 747-251B (N628US), Los Angeles, CA, incident, minor damage. Probable cause: The fatigue fracture of the number 4 bearing oil pressure tube due to an improper maintenance cleaning procedure by company maintenance personnel.
- [NTSB DCA94RA037](https://openairdocs.org/ntsb/DCA94RA037), Mar 1, 1994: Boeing 747 (N637US), Narita, Japan
- [NTSB SEA84IA233](https://openairdocs.org/ntsb/SEA84IA233), Sep 29, 1984: Boeing 747-200B (N613US), Seattle, WA, incident, minor damage
- [NTSB OAK75AP013](https://openairdocs.org/ntsb/OAK75AP013), Sep 21, 1974: Boeing 747 (N615US), No.Pacific Ocean (Pacific Ocean), 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.

- [Accident 20050819020349A](https://openairdocs.org/incident/20050819020349A), Aug 19, 2005: Boeing 747251B (N627US), Agana, Guam, Substantial damage. (-23) About 2 miles out on a visual approach to pgum, pilot reported a problem, initiated a go-around and requested to circle off shore. Thereafter, he…
- [Incident 20020217003559I](https://openairdocs.org/incident/20020217003559I), Feb 17, 2002: Boeing 747251B (N624US), Obyan, Northern Mariana Islands, Minor damage. (-23) Nasap report "arr'ed in spn-overcast skies and light rain. Winds were reported at 070 at 21 knots. ILS app'ch to rwy 07. Min autobrakes selected for wet…
- [Incident 20001031030959I](https://openairdocs.org/incident/20001031030959I), Oct 31, 2000: Boeing 747251B (N612US), Tokyo, JA. (-23) On climb thru 12,000 feet MSL intermitten cabin warning horn sounded.a/c continued climb at 14,000 feet MSL oxygen lite illuminated and masks dropped.…
- [Incident 19990227017829I](https://openairdocs.org/incident/19990227017829I), Feb 27, 1999: Boeing 747251B (N612US), Seattle, WA, Minor damage. (-5) Number four engine was changed at narita, japan on February 27, 1999. The last known opening and closing of #4 engine cowling was accomplished after this…
- [Incident 19990224021159I](https://openairdocs.org/incident/19990224021159I), Feb 24, 1999: Boeing 747251B (N622US), Tokyo, JA, Minor damage. After landing and runway turn off at nrt a loud pop and hissing sound was heard. The second officer observed fire under his table. He quickly extinguished the…
- [Incident 19970126017519I](https://openairdocs.org/incident/19970126017519I), Jan 26, 1997: Boeing 747251B (N627US), Tokyo, JA, Substantial damage. Narrative: on January 26, 1997 northwest flight 20, a Boeing 747-251B, registration #N627US, experienced a number one engine failure 20 to 30 seconds into the…
- [Incident 19960617027149I](https://openairdocs.org/incident/19960617027149I), Jun 17, 1996: Boeing 747251B (N614US), Anchorage, AK. Narrative: at approx. 1210Z #1 engine produced a loud bang accompanied by flames exiting the exhaust. EGT & epr indications went full scale high. Engine was…
- [Incident 19960105007659I](https://openairdocs.org/incident/19960105007659I), Jan 5, 1996: Boeing 747251B (N628US), Los Angeles, CA, Minor damage. Narrative: on January 5, 1996, about 1230 pacific standard time, a Boeing 747-251B, N628US, sustained an uncontained failure of the number 2 engine turbine…
- [Incident 19951117041179I](https://openairdocs.org/incident/19951117041179I), Nov 17, 1995: Boeing 747251B (N628US), San Francisco, CA. Narrative: F28/16 nov. #2 engine has significant vibration during climb. Nacelle temporally indicates 4.5 all other indications normal. In cruise vibration…
- [Incident 19950726026559I](https://openairdocs.org/incident/19950726026559I), Jul 26, 1995: Boeing 747251B (N614US), Minneapolis, MN. Compressor stall. EGT over temp. Dumped fuel. Returned. Changed engine.
- [Incident 19930728030819I](https://openairdocs.org/incident/19930728030819I), Jul 28, 1993: Boeing 747251B (N625US), Honolulu, HI, Minor damage. NR3 engine lost power on climb. Shut engine down. Dumped fuel. Returned. Found 6th stage turbine blades damaged.
- [Incident 19920825041289I](https://openairdocs.org/incident/19920825041289I), Aug 25, 1992: Boeing 747251B (N613US), Minneapolis, MN, Minor damage. NR4 engine temperature rise after takeoff. Compressor stall. Fire alarm. Used bottle. Metal in tail pipe.
- [Incident 19920714030239I](https://openairdocs.org/incident/19920714030239I), Jul 14, 1992: Boeing 747251B (N637US), Singapore, MY. NR2 and NR3 engine compressor stalls. Flameouts. Restarted at lower altitude. NR3 engine changed. NR2 re-rigged.
- [Incident 19920516021029I](https://openairdocs.org/incident/19920516021029I), May 16, 1992: Boeing 747251B (N625US), Seattle, WA, Minor damage. Right overwing escape slide deployed and separated on approach. Slide improperly secured.
- [Incident 19920316009869I](https://openairdocs.org/incident/19920316009869I), Mar 16, 1992: Boeing 747251B (N624US), Honolulu, HI, Minor damage. Left wing struck properly parked jetway bridge while parking. Ground personnel issued stop order too late.
- [Incident 19891018056009I](https://openairdocs.org/incident/19891018056009I), Oct 18, 1989: Boeing 747251B (N614US), St Louis, MO. Flaps stuck when extended, caused asymmetric condition. Flaps operated normally later. No defects found.
- [Incident 19890410014669I](https://openairdocs.org/incident/19890410014669I), Apr 10, 1989: Boeing 747251B (N614US), Honolulu, HI. Takeoff aborted due to oil pressure loss on NR1 engine. Returned to gate. Oil pressure indicator inoperative.
- [Incident 19880525039249I](https://openairdocs.org/incident/19880525039249I), May 25, 1988: Boeing 747251B (N625US), Chicago, IL. Passenger attacked flight attendant en route. Passenger restrained and monitored until removed by police at ord.
- [Incident 19870811055019I](https://openairdocs.org/incident/19870811055019I), Aug 11, 1987: Boeing 747251B (N614US), Minneapolis, MN. Number one engine went into full reverse during descent and was shut down. Landed safely.
- [Incident 19870622036329I](https://openairdocs.org/incident/19870622036329I), Jun 22, 1987: Boeing 747251B (N612US), Honolulu, HI. Aircraft lost all ins guidance system over ocean. Safe landing. Replaced ins nav unit.
- [Incident 19860904051249I](https://openairdocs.org/incident/19860904051249I), Sep 4, 1986: Boeing 747251B (N613US), Midway Island, MQ. Unscheduled landing after cargo fire warning. Replaced detector, switch, and fire bottle.
- [Incident 19860319033029I](https://openairdocs.org/incident/19860319033029I), Mar 19, 1986: Boeing 747251B (N613US), Hoquiam, WA. Lack of attention to inertial navigation procedures caused aircraft to be off course 190 NM. Autopilot in manual.
- [Incident 19850506021279I](https://openairdocs.org/incident/19850506021279I), May 6, 1985: Boeing 747251B (N628US), Chicago, IL. Shutdown nr 1 engine during climb due to high EGT and vibration. Safe landing. Metal found in tail pipe.
- [Incident 19840929065079I](https://openairdocs.org/incident/19840929065079I), Sep 29, 1984: Boeing 747251B (N613US), Seattle, WA. #2 Engine showed drop in fuel flow, N1 speed decrease and sharp report. Fuel dumped engine shut down.
- [Incident 19831127068909I](https://openairdocs.org/incident/19831127068909I), Nov 27, 1983: Boeing 747* (N615US), Seattle, WA, Minor damage. No 1 constant speed drive failed on climbout. Engine shutdown. Failure due to improper servicing.
- [Incident 19830915067249I](https://openairdocs.org/incident/19830915067249I), Sep 15, 1983: Boeing 747* (N628US), New York, NY, Minor damage. On push back from gate aircraft hit another aircraft taxiing to gate. Tug driver did not see signal to stop.
- [Incident 19821222067169I](https://openairdocs.org/incident/19821222067169I), Dec 22, 1982: Boeing 747* (N612US), Los Angeles, CA, Minor damage. #4 Engine caught on fire. Fire extinguished. Found #3 bearing breather manifold broken.
- [Incident 19820707040529I](https://openairdocs.org/incident/19820707040529I), Jul 7, 1982: Boeing 747251B (N628US), Narita, JA. On rotation at takeoff, aircraft had a fire warning on engine. Engine shut down. Fuel dumped. Fuel nozzle coking.
- [Incident 19820702049249I](https://openairdocs.org/incident/19820702049249I), Jul 2, 1982: Boeing 747* (N628US), Tokyo, JA, Minor damage. An aborted takeoff at departure created enough heat to release tire pressure. Landed with several deflated tires.
- [Incident 19820506018399I](https://openairdocs.org/incident/19820506018399I), May 6, 1982: Boeing 747* (N626US), Chicago, IL, Minor damage. Piece of gear door came off on takeoff. Blew two tires on landing. Replaced brake, tires, and door retract rod.
- [Incident 19810128010079I](https://openairdocs.org/incident/19810128010079I), Jan 28, 1981: Boeing 747251B (N627US), Anchorage, MN. Unscheduled landing due to oil leak from fuel oil cooler.
- [Incident 19800412037999I](https://openairdocs.org/incident/19800412037999I), Apr 12, 1980: Boeing 747/ (N627US), Chicago, IL. Aborted takeoff due to takeoff warning horn.
- [Incident 19791001051489I](https://openairdocs.org/incident/19791001051489I), Oct 1, 1979: Boeing 747/ (N622US), Prestwick, UK, Substantial damage. Three of four engines damaged by bird strike after takeoff.
- [Incident 19790817031729I](https://openairdocs.org/incident/19790817031729I), Aug 17, 1979: Boeing 747/ (N624US), Boston, MA. Engine shutdown due to compressor stalls and high EGT. Engine vane bleed control changed.
- [Incident 19790605014329I](https://openairdocs.org/incident/19790605014329I), Jun 5, 1979: Boeing 747* (N612US), Comox, CN, Minor damage. Engine fire in flight due to gear box failure. Fire bottle failed due to hose disconnected.
- [Incident 19780626034929I](https://openairdocs.org/incident/19780626034929I), Jun 26, 1978: Boeing 747/ (N614US), Detroit, MI. Engine failed during climb, flight continued to destination. Engine driven fuel pump had failed.
- [Incident 19780323010099I](https://openairdocs.org/incident/19780323010099I), Mar 23, 1978: Boeing 747/ (N612US), Tokyo, JA, Minor damage. Lightning strike during descent damaged compass flux valve, antena coupler, and main transfer valve actuator.

## Service difficulty reports (827, newest 50)

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

- [SDR KCSA201610011073](https://openairdocs.org/sdr/KCSA201610011073), Oct 1, 2016: FLAP. DELAMINATED. LT I/B FORE FLAP HAS DELAM ON LOWER SIDE AT NR 4 T/E FLAP TRACK.
- [SDR KCSA201609211071](https://openairdocs.org/sdr/KCSA201609211071), Sep 21, 2016: LAMP. BURNED OUT. EMERGENCY L1 CEILING LAMP OUT.
- [SDR KCSA2016081701](https://openairdocs.org/sdr/KCSA2016081701), Aug 17, 2016: GARLOCK SEAL. FAILED. NR 1 ENGINE EXPIERENCED AN INFLIGHT SHUT DOWN, LOW OIL PRESSURE 0 QTY, ENGINE STABLE, OIL PRESSURE 12 PSI, WINDMILL 3 HOURS 12 MINUTES. NO PARAMETERS EXCEEDED, 
- [SDR KCSA201604111012](https://openairdocs.org/sdr/KCSA201604111012), Apr 11, 2016: LIGHT. INOPERATIVE. MAIN DECK EMERGENCY LIGHT AT BS 510 INOPERATIVE.
- [SDR KCSA201604111011](https://openairdocs.org/sdr/KCSA201604111011), Apr 11, 2016: LIGHT. INOPERATIVE. EMERGENCY LIGHT IN UPPER DECK BS 405 INOPERATIVE.
- [SDR KCSA201512121101](https://openairdocs.org/sdr/KCSA201512121101), Dec 12, 2015: LIGHT. NO TEST. MAIN DECK EMERGENCY LIGHTS AT BS 440 AND 510 DO NOT TURN ON WHEN TESTED.
- [SDR KCSA201512121100](https://openairdocs.org/sdr/KCSA201512121100), Dec 12, 2015: LIGHT. NO TEST. UPPER DECK BS 415, RT SIDE EMERGENCY LIGHT DOES NOT TURN ON WHEN TESTED.
- [SDR KCSA201512121099](https://openairdocs.org/sdr/KCSA201512121099), Dec 12, 2015: LIGHT. NO TEST. UPPER DECK AFT 2 EMERGENCY LIGHTS DO NOT TURN ON WHEN TESTED.
- [SDR KCSA201512121098](https://openairdocs.org/sdr/KCSA201512121098), Dec 12, 2015: LIGHT. NO TEST. L1 DOOR SILL EMERGENCY LIGHTS DO NOT TURN ON WHEN TESTED.
- [SDR KCSA201512121097](https://openairdocs.org/sdr/KCSA201512121097), Dec 12, 2015: LIGHT. NO TEST. UPPER DECK R1 DOOR EXIT SIGN DOES NOT TURN ON WHEN TESTED.
- [SDR KCSA201512121096](https://openairdocs.org/sdr/KCSA201512121096), Dec 12, 2015: LIGHT. INOPERATIVE. UPPER DECK R1 DOOR SILL EMERGENCY LIGHTS DO NOT ILLUMNIATE.
- [SDR KCSA201512101095](https://openairdocs.org/sdr/KCSA201512101095), Dec 10, 2015: FLOORBEAM. CRACKED. BS 330 LT SIDE OF UPPER DECK FLOORBEAM WEB CRACKED AT FLOORBEAM TO CIRCUMFERENTIAL FRAME JOINT.
- [SDR KCSA201512051094](https://openairdocs.org/sdr/KCSA201512051094), Dec 5, 2015: FLOORBEAM. CRACKED. BS 340, RT SIDE HAS DEFECT INDICATION AT 4TH HOLE LOCATION FROM OTBD END. UPPER DECK FLOORBEAM.
- [SDR KCSA201512051093](https://openairdocs.org/sdr/KCSA201512051093), Dec 5, 2015: FLOORBEAM. CRACKED. BS 330, LT SIDE OF UPPER DECK FLOORBEAM UPPER ANGLE IS CRACKED.
- [SDR KCSA201512051092](https://openairdocs.org/sdr/KCSA201512051092), Dec 5, 2015: FRAME. CRACKED. PERFORMED OPEN HOLE HFEC ON FRAME WEB BS 360 LT SIDE AT UPPER DECK FLOOR BEAM IAW NDT MANUAL . CRACK INDICATIONS ON BOTH FRAME WEBS AT 9TH HOLE FROM OTBD END.
- [SDR KCSA201512021091](https://openairdocs.org/sdr/KCSA201512021091), Dec 2, 2015: SKIN. CORRODED. FUSELAGE SKIN IS CORRODED AT BS 980, STR 43L.
- [SDR KCSA201512021090](https://openairdocs.org/sdr/KCSA201512021090), Dec 2, 2015: KEELBEAM. CORRODED. KEELBEAM STRUCTURE BS 1292 TO 1295 LT SIDE IS AN AREA OF CORROSION ON THE LOWER CHORD, LBL 10.
- [SDR KCSA201511271089](https://openairdocs.org/sdr/KCSA201511271089), Nov 27, 2015: SKIN. CORRODED. FUSELAGE SKIN IS CORRODED UNDER WATER SERVICE DOUBLER.
- [SDR KCSA201511271088](https://openairdocs.org/sdr/KCSA201511271088), Nov 27, 2015: STRAP. CORRODED. BS 1860 S-27L, STRAP AT MCD CUTOUT HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511271087](https://openairdocs.org/sdr/KCSA201511271087), Nov 27, 2015: SPAR. CORRODED. CORROSION AT LT WING T/E WS 590 AUXILLARY SPAR LOWER CHORD DIRECTLY UNDER NR 6 SPOILER ACTUATOR.
- [SDR KCSA201511251086](https://openairdocs.org/sdr/KCSA201511251086), Nov 25, 2015: STRINGER CLIP. CRACKED. BS 1920, S-43L, STRINGER CLIP DAMAGED.
- [SDR KCSA201511251085](https://openairdocs.org/sdr/KCSA201511251085), Nov 25, 2015: DOUBLER. CORRODED. BS 2028-2040, S-27L DOUBLER AT MCD CUTOUT HAS EVID OF CORROSION ON EXTERIOR SURFACE.
- [SDR KCSA201511251084](https://openairdocs.org/sdr/KCSA201511251084), Nov 25, 2015: DOUBLER. CORRODED. BS 2011-2020, S-27L DOUBLER AT MCD CUTOUT HAS EVIDENCE OF CORROSION ON EXTERIOR SURFACE.
- [SDR KCSA201511251083](https://openairdocs.org/sdr/KCSA201511251083), Nov 25, 2015: DOUBLER. CORRODED. BS 2000-2002, S-27L, DOUBLER AT MCD CUTOUT HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251082](https://openairdocs.org/sdr/KCSA201511251082), Nov 25, 2015: STRAP. CORRODED. BS 1980-2001, S-27L, STRAP AT MCD CUTOUT HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251081](https://openairdocs.org/sdr/KCSA201511251081), Nov 25, 2015: STRAP. CORRODED. BS 1961-2010, S-9L STRAP, MCD, EXT SURFACE HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251080](https://openairdocs.org/sdr/KCSA201511251080), Nov 25, 2015: STRAP. CORRODED. BS 2009-2042, S9L, MCD CUTOUT STRAP HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251079](https://openairdocs.org/sdr/KCSA201511251079), Nov 25, 2015: SKIN. CORRODED. BS 2168 TO 2179, S-34L, EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251078](https://openairdocs.org/sdr/KCSA201511251078), Nov 25, 2015: SKIN. CORRODED. BS 1966 TO 2062, S-12L EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251077](https://openairdocs.org/sdr/KCSA201511251077), Nov 25, 2015: SKIN. CORRODED. BS 2120 TO 2177, S-19L EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251076](https://openairdocs.org/sdr/KCSA201511251076), Nov 25, 2015: SKIN. CORRODED. BS 2140 TO BS 2160, S-12L EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511251075](https://openairdocs.org/sdr/KCSA201511251075), Nov 25, 2015: SKIN. CORRODED. BS 2235 TO 2184, S19L EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511241074](https://openairdocs.org/sdr/KCSA201511241074), Nov 24, 2015: STRINGER. CORRODED. EVIDENCE OF CORROSION AT BS 2160 ON STRINGER 46R.
- [SDR KCSA201511241073](https://openairdocs.org/sdr/KCSA201511241073), Nov 24, 2015: UPLOCK BRACKET. CORRODED. RIGHT WING BS 1301 TO BS 1307 WING LT APPROXIMATELY 170, RBL APPROXIMATELY 106, CORROSION SEVERAL LOCATIONS AS MARKED MD46.
- [SDR KCSA201511241072](https://openairdocs.org/sdr/KCSA201511241072), Nov 24, 2015: SKIN. CORRODED. BS 2235, S18-19L, EXTERNAL SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511181070](https://openairdocs.org/sdr/KCSA201511181070), Nov 18, 2015: SUPPORT. CORRODED. RT WING, BS 1319 TO BS 1335, WING LEFT APPROXIMATELY 170, RBL APPROXIMATELY 106, CORROSION MULTIPLE LOCATIONS AS MARKED MD44.
- [SDR KCSA201511181069](https://openairdocs.org/sdr/KCSA201511181069), Nov 18, 2015: SKIN. CORRODED. BS 2140 TO BS 2160 S-12 L EXTERIOR SKIN HAS EVIDENCE OF CORROSION.
- [SDR KCSA201511171068](https://openairdocs.org/sdr/KCSA201511171068), Nov 17, 2015: WEB. CRACKED. BS 340, LT SIDE HAS DEFECT INDICATION AT 8TH HOLE LOCATION FROM OTBD END.
- [SDR KCSA201511171067](https://openairdocs.org/sdr/KCSA201511171067), Nov 17, 2015: SUPPORT. CORRODED. KEELBEAM AREA BS 1276 IS A FAIRING SUPPORT WITH SEVERAL AREAS OF CORROSION.
- [SDR KCSA201511171066](https://openairdocs.org/sdr/KCSA201511171066), Nov 17, 2015: SUPPORT. CORRODED. RIGHT WING BS 1307 TO 1319, WL APPROXIMATELY 170, RBL APPROXIMATELY 106, CORROSION MULTIPLE LOCATIONS.
- [SDR KCSA201511121064](https://openairdocs.org/sdr/KCSA201511121064), Nov 12, 2015: ANGLE. CORRODED. BS 1244 - 1264, WL 170, RBL 106, FOUND CORRODED.
- [SDR KCSA201511091061](https://openairdocs.org/sdr/KCSA201511091061), Nov 9, 2015: SKIN. CRACKED. LEFT FUSELAGE SKIN AT BS 344 JUST BELOW S5-L HAS THREE .5" CRACKS AND ONE 2".
- [SDR KCSA201511041059](https://openairdocs.org/sdr/KCSA201511041059), Nov 4, 2015: FLOORBEAM. CRACKED. BS 360, RT SIDE HAS DEFECT INDICATION AT 8TH HOLE LOCATION FROM OTBD END.
- [SDR KCSA201511041058](https://openairdocs.org/sdr/KCSA201511041058), Nov 4, 2015: FLOORBEAM. CRACKED. BS 360, RT SIDE HAS DEFECT INDICATION AT 7TH HOLE LOCATION FROM OTBD END.
- [SDR KCSA201511041057](https://openairdocs.org/sdr/KCSA201511041057), Nov 4, 2015: BULKHEAD WEB. CORRODED. RIGHT BS 2598 BULKHEAD HAS EVIDINCE OF CORROSION FOUND IN WEB, 2ND LAYER, 4TH HOLE FROM BOTTOM AT APPROXIMATELY 10:00 POSITION AS VIEWED FROM AFT.
- [SDR KCSA201511041056](https://openairdocs.org/sdr/KCSA201511041056), Nov 4, 2015: SKIN. CRACKED. RIGHT FUSELAGE SKIN AT BS 344 JUST BELOW S5-R HAS 1 EA .5" CRACKS.
- [SDR KCSA201510261055](https://openairdocs.org/sdr/KCSA201510261055), Oct 26, 2015: SPLICE. CRACKED. BS 1241, BULKHEAD SPLICE STRAP RT SIDE IS CRACKED APPROXIMATELY WL 170.
- [SDR KCSA201510261054](https://openairdocs.org/sdr/KCSA201510261054), Oct 26, 2015: SPLICE. CRACKED. BS 1241 BULKHEAD SPLICE STRAP LT SIDE IS CRACKED APPROXIMATELY WL 170.
- [SDR KCSA201510221053](https://openairdocs.org/sdr/KCSA201510221053), Oct 22, 2015: WEB. CRACKED. BS 360, LT SIDE HAS DEFECT INDICATION AT 9TH HOLE LOCATION FROM OTBD END.
- [SDR KCSA201510221052](https://openairdocs.org/sdr/KCSA201510221052), Oct 22, 2015: FLOORBEAM. CORRODED. FLOORBEAM UPPER CHORD AT BS 2280, LBL 12 IS CORRODED.

All 827: https://openairdocs.org/model/boeing-747-251b/reports.md

## STCs that may be installed (OpenAirDocs) (614, 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 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 SA2307WE](https://openairdocs.org/stc/SA2307WE): Installation of drink trolly 744000. (747-257B). 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. Lists 747-200 Series
- [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 SA4204NM-D](https://openairdocs.org/stc/SA4204NM-D): Installation of one (1) crew rest area(non-flight crew). Safran Cabin Inc. Lists 747-200 Series
- [STC SA5067NM](https://openairdocs.org/stc/SA5067NM): Installation of L.H. galley G1L. Safran Cabin Inc. Lists 747-200 Series
- [STC SA5157NM](https://openairdocs.org/stc/SA5157NM): Installation of sidewall panels. Safran Cabin Inc
- [STC SA5504NM](https://openairdocs.org/stc/SA5504NM): Installation of galley No. 2B. Safran Cabin Inc
- [STC SA5799NM](https://openairdocs.org/stc/SA5799NM): Installation of a modular lavatory retrofit kit. Safran Cabin Inc. Lists 747-200 Series
- [STC SA5883NM](https://openairdocs.org/stc/SA5883NM): Installation of video stowage cabinet P/N 6451001-102. Safran Cabin Inc
- [STC ST00274LA](https://openairdocs.org/stc/ST00274LA): Installation of C & D Interiors Stowage Table Unit. Safran Cabin Inc
- [STC ST00405SE](https://openairdocs.org/stc/ST00405SE): Installation of Centerline Bins. 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 ST00586LA](https://openairdocs.org/stc/ST00586LA): Installation of galley, R/H & L/H stowage units, curtains and modifications. Safran Cabin Inc
- [STC ST00624LA](https://openairdocs.org/stc/ST00624LA): Installation of a TBO Container. Safran Cabin Inc
- [STC ST01154SE](https://openairdocs.org/stc/ST01154SE): Installation of Interior Components. 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 ST02159CH](https://openairdocs.org/stc/ST02159CH): Installation of AIRSAT II Satcom wiring and antenna provisions. 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 ST10828SC](https://openairdocs.org/stc/ST10828SC): Installation of ECS brackets and hardware for triple Teledyne Controls Electronic Flight Bag Display Units (EFB DU’s). 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 ST00227MC](https://openairdocs.org/stc/ST00227MC): Low Range Radar Altimeter 5G C-Band Upgrade as defined by FAA. The Boeing Company
- [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

All 614: https://openairdocs.org/model/boeing-747-251b/stcs.md

## The same model under other registry codes

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

- [Boeing 747-257B](https://openairdocs.org/model/boeing-747-257b): 1 registered aircraft, registry code 1384853
- [Boeing 747-283B](https://openairdocs.org/model/boeing-747-283b): 1 registered aircraft, registry code 1384867
- [Boeing 747-259B](https://openairdocs.org/model/boeing-747-259b): 0 registered aircraft, registry code 1384804
- [Boeing 747-211B](https://openairdocs.org/model/boeing-747-211b): 0 registered aircraft, registry code 1384809
- [Boeing 747-238B](https://openairdocs.org/model/boeing-747-238b): 0 registered aircraft, registry code 1384828
- [Boeing 747-243B](https://openairdocs.org/model/boeing-747-243b): 0 registered aircraft, registry code 1384830
- [Boeing 747-219B](https://openairdocs.org/model/boeing-747-219b): 0 registered aircraft, registry code 1384852
- [Boeing 747-233B](https://openairdocs.org/model/boeing-747-233b): 0 registered aircraft, registry code 1384855
- [Boeing 747-206B](https://openairdocs.org/model/boeing-747-206b): 0 registered aircraft, registry code 1384856
- [Boeing 747-237B](https://openairdocs.org/model/boeing-747-237b): 0 registered aircraft, registry code 1384858
- [Boeing 747-240B](https://openairdocs.org/model/boeing-747-240b): 0 registered aircraft, registry code 1384859
- [Boeing 747-282B](https://openairdocs.org/model/boeing-747-282b): 0 registered aircraft, registry code 1384860

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