# Boeing 747-400 - Type: Aircraft model (FAA registry) - Registry code: 13848AT - Manufacturer (registry): BOEING - Model: 747-400 - Aircraft type: Fixed wing multi engine - Category: Airplane - Engines: 4 · Turbo-fan - Seats: 490 - 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-747-400 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 2026-08-06](https://openairdocs.org/ad/2026-08-06): Oxygen · Boeing 747-400 Series with STC ST01676SE or ST01706SE. Effective May 7, 2026 - [AD 2025-15-07](https://openairdocs.org/ad/2025-15-07): Equipment/furnishings · Boeing 747-8 Series, 747-8F Series, 747-200B Series and 6 more. Effective Aug 13, 2025 - [AD 2025-09-08](https://openairdocs.org/ad/2025-09-08): Stabilizers · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective May 5, 2025 - [AD 2025-03-10](https://openairdocs.org/ad/2025-03-10): Water/waste · Boeing 747-400 Series, 747-400F Series, 747-8F Series and 1 more. Effective Mar 21, 2025 - [AD 2025-02-07](https://openairdocs.org/ad/2025-02-07): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Mar 17, 2025 - [AD 2025-02-05](https://openairdocs.org/ad/2025-02-05): Landing gear · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Mar 17, 2025 - [AD 2024-19-01](https://openairdocs.org/ad/2024-19-01): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Nov 15, 2024 - [AD 2023-23-14](https://openairdocs.org/ad/2023-23-14): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective Dec 15, 2023 - [AD 2023-18-06](https://openairdocs.org/ad/2023-18-06): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 7, 2023 - [AD 2023-12-14](https://openairdocs.org/ad/2023-12-14): Navigation · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 more. Effective Jun 21, 2023 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2023-07-09](https://openairdocs.org/ad/2023-07-09): Fuel · Boeing 747-400 Series and 747-8 Series. Effective May 1, 2023 - [AD 2023-03-20](https://openairdocs.org/ad/2023-03-20): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective May 1, 2023 - [AD 2023-03-15](https://openairdocs.org/ad/2023-03-15): Air conditioning · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 14, 2023 - [AD 2022-24-15](https://openairdocs.org/ad/2022-24-15): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 11 more. Effective Jan 26, 2023 - [AD 2022-25-04](https://openairdocs.org/ad/2022-25-04): Equipment/Furnishings · Boeing 747-400 Series and 747-8 Series. Effective Jan 20, 2023 - [AD 2022-23-12](https://openairdocs.org/ad/2022-23-12): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 4, 2023 - [AD 2022-15-07](https://openairdocs.org/ad/2022-15-07): Navigation · Boeing 747-400 Series. Effective Sep 15, 2022 - [AD 2022-13-18](https://openairdocs.org/ad/2022-13-18): Oxygen · Boeing 737-700 Series, 737-800 Series, 747-8 Series and 3 more. Effective Sep 15, 2022 - [AD 2022-10-11](https://openairdocs.org/ad/2022-10-11): Fuel, Wings · Boeing 747-100B SUD Series, 747-200B Series, 747-200C Series and 6 more. Effective Jul 11, 2022 - [AD 2021-26-10](https://openairdocs.org/ad/2021-26-10): Equipment/Furnishings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Feb 22, 2022 - [AD 2021-17-06](https://openairdocs.org/ad/2021-17-06): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2021 - [AD 2021-14-10](https://openairdocs.org/ad/2021-14-10): Equipment/furnishings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Aug 19, 2021 - [AD 2021-08-04](https://openairdocs.org/ad/2021-08-04): Oxygen · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 23 more. Effective May 26, 2021 - [AD 2021-06-10](https://openairdocs.org/ad/2021-06-10): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 16 more. Effective Apr 28, 2021 - [AD 2020-21-16](https://openairdocs.org/ad/2020-21-16): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 14, 2021 - [AD 2020-18-02](https://openairdocs.org/ad/2020-18-02): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Nov 10, 2020 - [AD 2020-15-14](https://openairdocs.org/ad/2020-15-14): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 3, 2020 - [AD 2020-14-02](https://openairdocs.org/ad/2020-14-02): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 28, 2020 - [AD 2020-07-14](https://openairdocs.org/ad/2020-07-14): Fuel · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 18, 2020 - [AD 2020-04-11](https://openairdocs.org/ad/2020-04-11): Fuselage · Boeing 747-400 Series. Effective Apr 13, 2020 - [AD 2019-19-02](https://openairdocs.org/ad/2019-19-02): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Nov 27, 2019 - [AD 2018-23-12](https://openairdocs.org/ad/2018-23-12): Equipment/furnishings · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 180 more. Effective Dec 28, 2018 - [AD 2018-19-23](https://openairdocs.org/ad/2018-19-23): Doors · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 15 more. Effective Nov 7, 2018 - [AD 2018-16-06](https://openairdocs.org/ad/2018-16-06): Equipment/furnishings; 53, Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 12, 2018 - [AD 2018-09-12](https://openairdocs.org/ad/2018-09-12): Oxygen · Boeing 747-200B Series, 747-300 Series and 747-400 Series. Effective May 30, 2018 - [AD 2018-04-07](https://openairdocs.org/ad/2018-04-07): Fuselage; Nacelles/Pylons; Stabilizers; Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Mar 30, 2018 - [AD 2017-22-10](https://openairdocs.org/ad/2017-22-10): Equipment/furnishings · Boeing 747-400 Series, 747-400F Series and 747-8F Series. Effective Dec 29, 2017 - [AD 2017-18-06](https://openairdocs.org/ad/2017-18-06): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2017 - [AD 2017-09-10](https://openairdocs.org/ad/2017-09-10): Wings · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jun 27, 2017 - [AD 2017-02-09](https://openairdocs.org/ad/2017-02-09): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Mar 17, 2017 - [AD 2017-02-04](https://openairdocs.org/ad/2017-02-04): Nacelles/pylons · Boeing 747-200B Series, 747-300 Series, 747-400 Series and 2 more. Effective Mar 14, 2017 - [AD 2016-26-07](https://openairdocs.org/ad/2016-26-07): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Feb 15, 2017 - [AD 2016-25-01](https://openairdocs.org/ad/2016-25-01): Auto flight · Boeing 747-400 Series, 747-400D Series, 747-400F Series and 8 more. Effective Jan 31, 2017 - [AD 2016-25-05](https://openairdocs.org/ad/2016-25-05): Stabilizers · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jan 25, 2017 - [AD 2016-25-09](https://openairdocs.org/ad/2016-25-09): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jan 17, 2017 - [AD 2016-19-12](https://openairdocs.org/ad/2016-19-12): Fuel · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Nov 14, 2016 Historical (superseded or no longer in force): - [AD 2025-01-08](https://openairdocs.org/ad/2025-01-08) (historical): Equipment/furnishings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 6 more. Effective Mar 19, 2025 - [AD 2022-27-07](https://openairdocs.org/ad/2022-27-07) (historical): Fuel · Boeing 747-400 Series and 747-8 Series. Effective Jan 13, 2023 - [AD 2022-06-16](https://openairdocs.org/ad/2022-06-16) (historical): Navigation · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 more. Effective Mar 16, 2022 - [AD 2021-07-09](https://openairdocs.org/ad/2021-07-09) (historical): Air conditioning · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 12, 2021 - [AD 2021-02-15](https://openairdocs.org/ad/2021-02-15) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Mar 30, 2021 - [AD 2020-03-20](https://openairdocs.org/ad/2020-03-20) (historical): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Feb 18, 2020 - [AD 2019-22-02](https://openairdocs.org/ad/2019-22-02) (historical): Equipment/ furnishings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 6 more. Effective Jan 16, 2020 - [AD 2017-18-05](https://openairdocs.org/ad/2017-18-05) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 5, 2017 - [AD 2015-13-06](https://openairdocs.org/ad/2015-13-06) (historical): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Sep 1, 2015 - [AD 2014-07-01](https://openairdocs.org/ad/2014-07-01) (historical): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jun 3, 2014 - [AD 2013-22-11](https://openairdocs.org/ad/2013-22-11) (historical): Fuselage · Boeing 747-400 Series and 747-400D Series. Effective Dec 10, 2013 - [AD 2013-23-03](https://openairdocs.org/ad/2013-23-03) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 29, 2013 - [AD 2013-18-09](https://openairdocs.org/ad/2013-18-09) (historical): Communications · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 137 more. Effective Oct 3, 2013 - [AD 2013-14-05](https://openairdocs.org/ad/2013-14-05) (historical): Fuselage · Boeing 747-400 Series and 747-400F Series. Effective Aug 26, 2013 - [AD 2013-01-02](https://openairdocs.org/ad/2013-01-02) (historical): Doors · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 12 more. Effective Feb 22, 2013 - [AD 2012-24-10](https://openairdocs.org/ad/2012-24-10) (historical): Air Conditioning · Boeing 747-400 Series and 747-400F Series. Effective Jan 16, 2013 - [AD 2012-22-02](https://openairdocs.org/ad/2012-22-02) (historical): Fuselage · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Dec 26, 2012 - [AD 2012-15-13](https://openairdocs.org/ad/2012-15-13) (historical): Fuselage · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Sep 12, 2012 - [AD 2012-05-03](https://openairdocs.org/ad/2012-05-03) (historical): Wings · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 24, 2012 - [AD 2010-26-10](https://openairdocs.org/ad/2010-26-10) (historical): Fuselage · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Feb 1, 2011 - [AD 2010-20-08](https://openairdocs.org/ad/2010-20-08) (historical): Fuselage · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Nov 9, 2010 - [AD 2009-21-10](https://openairdocs.org/ad/2009-21-10) (historical): Oxygen · Airbus A300, Model B4-605R, A300, Model B4-620, A300, Model B4-622 and 138 more. Effective Dec 17, 2009 - [AD 2009-22-08](https://openairdocs.org/ad/2009-22-08) (historical): Control switches · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 12 more. Effective Dec 3, 2009 - [AD 2009-14-02](https://openairdocs.org/ad/2009-14-02) (historical): Vertical stabilizer seal and fuselage skin · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Aug 3, 2009 - [AD 2009-10-06](https://openairdocs.org/ad/2009-10-06) (historical): Air Transport Association (ATA) of America Code 27: Flight controls. · Boeing 747-400 Series and 747-400D Series. Effective Jun 9, 2009 - [AD 2009-06-02](https://openairdocs.org/ad/2009-06-02) (historical): Detect and correct cracks in the fuselage skin that can propagate and grow, resulting in a loss of structural integrity and a sudden decompression of the airplane during flight. · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 7 more. Effective Apr 20, 2009 - [AD 2008-10-06](https://openairdocs.org/ad/2008-10-06) (historical): Fuel tank systems · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Jun 12, 2008 - [AD 2008-08-25](https://openairdocs.org/ad/2008-08-25) (historical): Main equipment center · Boeing 747-400 Series and 747-400F Series. Effective May 27, 2008 - [AD 2007-23-18](https://openairdocs.org/ad/2007-23-18) (historical): Tension ties · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Nov 28, 2007 - [AD 2007-16-08](https://openairdocs.org/ad/2007-16-08) (historical): Cracking of the station 800 frame assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Sep 13, 2007 - [AD 2007-15-10](https://openairdocs.org/ad/2007-15-10) (historical): No. 2 and No. 3 windows · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 4, 2007 - [AD 2007-16-19](https://openairdocs.org/ad/2007-16-19) (historical): Aft tension tie channels at four station locations · Boeing 747-200B Series, 747-300 Series and 747-400 Series. Effective Aug 28, 2007 - [AD 2007-07-03](https://openairdocs.org/ad/2007-07-03) (historical): Trim air diffuser ducts or sidewall riser duct assemblies · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective May 2, 2007 - [AD 2006-22-15](https://openairdocs.org/ad/2006-22-15) (historical): Nose wheel well (NWW) · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Dec 11, 2006 - [AD 2006-18-17](https://openairdocs.org/ad/2006-18-17) (historical): Yaw damper actuator portion of the upper and lower rudder power control modules (PCMs) · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Oct 13, 2006 - [AD 2006-12-12](https://openairdocs.org/ad/2006-12-12) (historical): Station 800 frame assembly · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 6 more. Effective Jul 17, 2006 - [AD 2006-12-10](https://openairdocs.org/ad/2006-12-10) (historical): Support bracket of the crew oxygen cylinder · Boeing 747-400 Series. Effective Jul 17, 2006 - [AD 2006-10-04](https://openairdocs.org/ad/2006-10-04) (historical): Left and right longeron extension fittings · Boeing 747-200B Series, 747-200C Series, 747-200F Series and 3 more. Effective Jun 16, 2006 - [AD 2006-09-06](https://openairdocs.org/ad/2006-09-06) (historical): Lower lobe fuselage frames · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 5 more. Effective Jun 7, 2006 - [AD 2006-06-11](https://openairdocs.org/ad/2006-06-11) (historical): Fasteners in the tension ties · Boeing 747-100B SUD Series, 747-200B Series, 747-300 Series and 2 more. Effective Apr 26, 2006 - [AD 2006-05-09](https://openairdocs.org/ad/2006-05-09) (historical): Lap joints of the fuselage skin · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Apr 13, 2006 - [AD 2006-05-06](https://openairdocs.org/ad/2006-05-06) (historical): Body station (BS) 2598 bulkhead · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Apr 13, 2006 - [AD 2006-05-02](https://openairdocs.org/ad/2006-05-02) (historical): Fuselage internal structure · Boeing 747-200C Series, 747-200F Series, 747-400 Series and 2 more. Effective Apr 6, 2006 - [AD 2005-16-06](https://openairdocs.org/ad/2005-16-06) (historical): Escape slides/rafts. · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Sep 13, 2005 - [AD 2005-15-08](https://openairdocs.org/ad/2005-15-08) (historical): Fuselage stringers · Boeing 747-100B Series, 747-200B Series, 747-300 Series and 2 more. Effective Aug 30, 2005 - [AD 2005-01-09](https://openairdocs.org/ad/2005-01-09) (historical): Frame Web and Inner Chords on Forward Edge Frame of Number 5 Main Entry Door Cutout · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 8 more. Effective Feb 11, 2005 - [AD 2003-23-01](https://openairdocs.org/ad/2003-23-01) (historical): Yaw damper actuator · Boeing 747-400 Series, 747-400D Series and 747-400F Series. Effective Dec 18, 2003 - [AD 2003-19-08](https://openairdocs.org/ad/2003-19-08) (historical): Discrepancies of Forward and Aft Sides of Body Station 2598 Bulkhead · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Oct 27, 2003 - [AD 2003-20-08](https://openairdocs.org/ad/2003-20-08) (historical): Shoulder restraint harness · Boeing 747-100B Series, 747-200B Series, 747-200C Series and 8 more. Effective Oct 21, 2003 - [AD 2003-13-09](https://openairdocs.org/ad/2003-13-09) (historical): Horizontal stabilizer and rear spar structure · Boeing 747-100 Series, 747-100B Series, 747-100B SUD Series and 9 more. Effective Jul 15, 2003 All 622: https://openairdocs.org/model/boeing-747-400/ads.md ## Information bulletins (advisory) (11) - [SAIB AIR-20-18](https://openairdocs.org/saib/AIR-20-18): Flight Management Computing Software System. Issued Nov 16, 2020 - [SAIB NM-20-07](https://openairdocs.org/saib/NM-20-07): Navigation - Glideslope System. Issued Apr 16, 2020 - [SAIB NM-18-33](https://openairdocs.org/saib/NM-18-33): Engine Fuel and Control. Issued Dec 17, 2018 - [SAIB NM-17-10](https://openairdocs.org/saib/NM-17-10): Maintenance Practices. Issued Apr 13, 2017 - [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014 - [SAIB NM-15-02](https://openairdocs.org/saib/NM-15-02): Cabin Equipment/Furnishings. Issued Nov 6, 2014 - [SAIB NM-12-40](https://openairdocs.org/saib/NM-12-40): External Power System Connector. Issued Aug 3, 2012 - [SAIB NM-09-27](https://openairdocs.org/saib/NM-09-27): Equipment/Furnishings: In-flight access to Class E cargo compartments. Issued May 12, 2009 - [SAIB NM-09-03](https://openairdocs.org/saib/NM-09-03): Engine Fuel and Control - Implementing Fuel Tank System Airworthiness Limitations. Issued Dec 11, 2008 - [SAIB NM-06-57](https://openairdocs.org/saib/NM-06-57): Reports of damage to airplanes and to property on the ground caused by blue or clear ice falling from airplanes.. Issued Jul 27, 2006 - [SAIB ANM-99-29](https://openairdocs.org/saib/ANM-99-29): . Issued Jul 2, 1999 ## Registered aircraft (1) - [N184SK](https://openairdocs.org/aircraft/N184SK): [Bank Of Utah Trustee](https://openairdocs.org/faa-owner/BANK%20OF%20UTAH%20TRUSTEE), [Salt Lake City, UT](https://openairdocs.org/faa-place/UT/Salt%20Lake%20City), S/N 28284 ## NTSB investigations None matched to aircraft with this model. ## FAA accident and incident reports (1) From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. - [Incident 20000812030209I](https://openairdocs.org/incident/20000812030209I), Aug 12, 2000: Dhav DHC6 (N805AS), Pago Pago, American Samoa. (-23)ATC cleared a 121 flt to land on runway 26 while airport personnel were exercising on runway 26. Tower controller was not aware of personnel exercising on… ## Service difficulty reports (275, newest 50) As reported by operators and repair stations, by the model named in the report. - [SDR 9WGA2026042725802](https://openairdocs.org/sdr/9WGA2026042725802), Apr 25, 2026: SKIN. CORRODED. RIGHT HAND WING UPPER SURFACE TRAILING EDGE SIDE WAS FOUND WITH CORROSION FROM STA ERSS 1646.716 TO WBL 1247, DURING HEAVY CHECK, PER WO 15698, NRC 940659, SEQ - [SDR U2RA2026011000029](https://openairdocs.org/sdr/U2RA2026011000029), Jan 7, 2026: SKIN. CRACKED. THREE INCH CRACK WAS IDENTIFIED IN THE LEFT WING LEADING EDGE UPPER SPLICE PLATE. ACCOMPLISHED MAJOR REPAIR IAW FLIGHT VEHICLES CONSULTING INC. ENGINEERING ORDE - [SDR UIEA2025091101180](https://openairdocs.org/sdr/UIEA2025091101180), Sep 9, 2025: IDG. FAULTED. ELEC DRIVE 1 ILLUMINATED ON EICAS. REMOVED AND REPLACED #1 IDG PER AMM 24-11-01. OPS/LEAK CHECK GOOD. MESSAGE CLEARED.

) - [SDR 2023F00284](https://openairdocs.org/sdr/2023F00284), Sep 21, 2023: DUCT. DAMAGED. DURING FLAP RETRACTION - FLAP DRIVE MSG (LE L1 DRIVE FAIL FCU 27674) , CREW DECLARED EMERGENCY ,DUMPED FUEL AND RETURNED TO AIRPORT (LAX) .AFTER T/S SYSTEM , FO - [SDR UIEA2022111701192](https://openairdocs.org/sdr/UIEA2022111701192), Nov 17, 2022: PANEL. MISSING. #3 PYLON FOUND MISSING PANEL 471AL MISSING ON ARRIVAL(INSTALLED TEMP PANEL PER EO 4454A089 AND PERFORMED PART DEPARTURE INSPECTION PER AMM 05-51-58-200-801.) - [SDR SBOY202207260002](https://openairdocs.org/sdr/SBOY202207260002), Jul 26, 2022: TANK. LEAKING. AIRCRAFT REG: 9V-SCB. AIRCRAFT RETURNED TO BASE DUE FLIGHT CREW REPORTED FUEL MIST OBSERVED AT THE RIGHT HAND (RH) ENGINE DURING CRUISE. ACTION TAKEN:FOLLOWING - [SDR SBOY202207220001](https://openairdocs.org/sdr/SBOY202207220001), Jul 22, 2022: SKIN PANEL. CRACKED. DURING ACCOMPLISHMENT OF IED STA 2598 BULKHEAD SURFACE & OPEN HOLE HFEC INSPECTION (UPPER AREA) , FOUND 2 OPEN FASTENER HOLE WITH CRACK INDICATION ON FRAME SUPP - [SDR 2022FA0000353](https://openairdocs.org/sdr/2022FA0000353), Jul 18, 2022: NONE. NONE. CREW REPORTED ON PREFLIGHT, THAT THE RIGHT WING NAV LIGHT IS NOT WORKING. CREW MADE A LOGBOOK ENTRY. AMT TRANSFERRED THE ENTRY TO MAINTENIX AND DEFERRED THE RIG - [SDR SAJF202201250001](https://openairdocs.org/sdr/SAJF202201250001), Jan 21, 2022: NONE. NONE. 2022/01/21 B-18725 CI-5321 JFK-ANC/JFK ENG 4 N1/N2 100%/90% TWO TIMES DURING CLIMB AND A/C VIBRATION FEEL. FLIGHT CREW FELT AIRCRAFT YAW AND VIBRATION CAUSED BY - [SDR SAJF202201210001](https://openairdocs.org/sdr/SAJF202201210001), Jan 17, 2022: NONE. NONE. 2022/01/17 B-18720 CI-5122 ANC-ORD/ANC RTO DUE TO TAKE OFF ROLL ENGINE 1 SURGE AND NOISE SOUND. THE CREW FOLLOWS QRH TO RETARD THRUST LEVER TO IDLE, ABORT TAKEO - [SDR KC1R20211104001](https://openairdocs.org/sdr/KC1R20211104001), Nov 4, 2021: DISC. CRACKED. AS RECEIVED, THERE ARE MULTIPLE CRACK INDICATIONS FOUND ON THE SERRATION LOCATION 61. THE CRACK INDICATIONS ARE FOUND AT 35 SERRATION LOCATIONS. THE CRACKS APPE - [SDR KC1R20210622001](https://openairdocs.org/sdr/KC1R20210622001), Jun 22, 2021: TURBINE WHEEL. CRACKED. AS RECEIVED, THERE ARE MULTIPLE CRACK INDICATIONS FOUND ON THE SERRATION LOCATION 61. THE CRACK INDICATIONS ARE FOUND AT TWO SERRATION LOCATIONS. THE CRACKS APP - [SDR UIEA2021050701087](https://openairdocs.org/sdr/UIEA2021050701087), May 4, 2021: SKIN. BROKEN. BROKEN SKIN, LH WING INBD AILERON T/E OUTBD EDGE(

REPAIR BROKEN SKIN, LH WING INBD AILERON T/E OUTBD EDGE. SEE J/C ATTACHING SHEET NO. 0237793, 023 - [SDR UIEA2021050701088](https://openairdocs.org/sdr/UIEA2021050701088), May 4, 2021: SKIN. CHAFED. CHAFFING SKIN PANEL, RH WING INBD AILERON OUTBD END T/E AREA(

REPAIR CHAFFING SKIN PANEL, RH WING INBD AILERON OUTBD END T/E AREA. SEE J/C ATTACHIN - [SDR UIEA2021050701089](https://openairdocs.org/sdr/UIEA2021050701089), May 4, 2021: DOOR FRAME. BROKEN. FOUND MAIN DECK CGO L5 ENTRY DOOR FWD FRAME BROKEN(

REMOVED AFFECTED FASTENERS TO GET ACCESS IAW SRM 51-40-02 REV 91. REPAIRED DAMAGED AREA IAW SRM 53-60-15-2 - [SDR UIEA2021050701090](https://openairdocs.org/sdr/UIEA2021050701090), May 4, 2021: RIB. CRACKED. CRACKED RIB, RH HORIZONTAL STAB INTERNAL RIB. STAB BL 421(

REMOVED AFFECTED FASTENERS TO GET ACCESS IAW SRM 51-40-02 REV 91. REPAIR DAMAGE AREA IAW SRM 55-10- - [SDR UIEA2021050701091](https://openairdocs.org/sdr/UIEA2021050701091), May 4, 2021: SEAL. OUT OF POSITION. FOUND THE PRESSURE SEAL INTERFERE WITH ARM SWITCH IN AFT CGO DOOR CONTROL PANEL(

ACCOMPLISHED EGAT EI NO. T202152E-1450 REV. 0 AND W/O NO. 5881407 CLOSE

) - [SDR UIEA2021050701092](https://openairdocs.org/sdr/UIEA2021050701092), May 4, 2021: STIFFENER. CORRODED. EXFOLIATION CORROSION - STIFFENER, LH WING CTR L/E REFUELING DOOR(

REMOVED AND REPLACED DAMAGED PARTS IAW SRM 51-40-02 REV 91 AND DWG NO. 65B10882 SH 7 REV C. - [SDR UIEA2021050701093](https://openairdocs.org/sdr/UIEA2021050701093), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEM ASSEMBLY INTERIOR STRUCTURE, STA 1271 RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP REFER TO J/C - [SDR UIEA2021050701094](https://openairdocs.org/sdr/UIEA2021050701094), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1400 LBL 9(

BLENEDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORM NDT INSP. REFER TO J/C - [SDR UIEA2021050701095](https://openairdocs.org/sdr/UIEA2021050701095), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE, STA 1383 LBL 9(

BLENDED OUT THE DAMAGED AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER TO J - [SDR UIEA2021050701096](https://openairdocs.org/sdr/UIEA2021050701096), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1441, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51+10+02 REV 91. PERFORMED NDT INSP. REFER TO J/ - [SDR UIEA2021050701097](https://openairdocs.org/sdr/UIEA2021050701097), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1425, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER - [SDR UIEA2021050701098](https://openairdocs.org/sdr/UIEA2021050701098), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE, STA 1442, LBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFE - [SDR UIEA2021050701099](https://openairdocs.org/sdr/UIEA2021050701099), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1413, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER - [SDR UIEA2021050701100](https://openairdocs.org/sdr/UIEA2021050701100), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1270 LBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER - [SDR UIEA2021050701101](https://openairdocs.org/sdr/UIEA2021050701101), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY, INTERIOR STRUCTURE STA 1387, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFE - [SDR UIEA2021050701102](https://openairdocs.org/sdr/UIEA2021050701102), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1331.5, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REF - [SDR UIEA2021050701103](https://openairdocs.org/sdr/UIEA2021050701103), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1400, RBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER - [SDR UIEA2021050701104](https://openairdocs.org/sdr/UIEA2021050701104), May 4, 2021: KEELBEAM. CORRODED. CORROSION - CHORD, KEEL BEAM ASSEMBLY INTERIOR STRUCTURE STA 1433, LBL 9(

BLENDED OUT THE DAMAGE AREA IAW SRM 51-10-02 REV 91. PERFORMED NDT INSP. REFER - [SDR UIEA2021050701105](https://openairdocs.org/sdr/UIEA2021050701105), May 4, 2021: WIRE. MISROUTED. FOUIND WIRE NO. W4698-705-20 NOT ROUTE CORRECTLY IAW SB 747-21-2550 (AD)(

TRANSFER TO EO NO. 4421A098 REV 9 AND W/O NO. 5775917 CLOSE.

) - [SDR KC1R20210326001](https://openairdocs.org/sdr/KC1R20210326001), Mar 26, 2021: TURBINE WHEEL. CRACKED. AS RECEIVED, THERE ARE MULTIPLE CRACK INDICATIONS FOUND ON THE DISC FIRTREE SERRATION LOCATION 61. SOME OF THE CRACKS ARE VISIBLE TO WHITE LIGHT INSPECTION. THE - [SDR KC1R20210112001](https://openairdocs.org/sdr/KC1R20210112001), Jan 12, 2021: TURBINE WHEEL. CRACKED. WE ARE SUBMITTING THIS SDR PER REQUEST OF ROLLS ROYCE. AS RECEIVED, NDT INSPECTION BY FPI METHOD FINDS MULTIPLE CRACK INDICATIONS IN THE SERRATION LOCATION 61 A - [SDR IPXA2020030652848](https://openairdocs.org/sdr/IPXA2020030652848), Mar 5, 2020: CONTROL SWITCH. FAULTY. INSPECTION TYPE:NA**ATB, AC OOS ** RESULTED IN ATB ON CLIMBOUT PASSING =11000' WHILE ACCELERATING THROUGH 310 KTS WITH AUTOPILOT ENGAGED "STAB TRIM 2", "STAB TR - [SDR SAJF2020024108034](https://openairdocs.org/sdr/SAJF2020024108034), Dec 28, 2019: BLADE. CRACKED. CI-5224 TPE-ANC ENG2 VIBRATION DURING CLIMB, GROUND CHECK FOUND 1 EA LPT 5 BLADE GOT A NICK AND METAL CHIPS AT ENGINE EXHAUST. FURTHER BSI FOUND LPT 3 VANE BROK - [SDR SAJF2019050100000](https://openairdocs.org/sdr/SAJF2019050100000), Mar 21, 2019: WIRE. DAMAGED. 1.. PROBLEM DESCRIPTION:: DURING TOOK-OFF LANDING GEAR RETRACTED AND DOORS CLOSED, PRIMARY AND ALTERNATE PROX SWITCH TARGET FAIL FOR GEAR TILT FAULT OF LT BLG W - [SDR SAJF2018110507024](https://openairdocs.org/sdr/SAJF2018110507024), Nov 4, 2018: SKIN. CRACKED. PREFLIGHT CHECK FOUND NR 3 MAIN TANK OVERWING FILL PORT SEEPING. PERFORM INSPECTION FOUND AT RT WING RIB2-RIB3 UPPER SKIN CORROSION AND CRACK. STRUCTURE ENGINEE - [SDR SAJF2018082907017](https://openairdocs.org/sdr/SAJF2018082907017), Jul 27, 2018: SLIDE. NO TEST. PERFORMED A C8 CHECK IAW AMP 25-065-02-01-40, TASK. L1 DOOR SLIDE DEPLOY WAS EXECUTED, DURING THE PROCESS, FOUND SLIDE INFLATION WAS ABNORMAL, WHEN INFLATION PR - [SDR IPXA2018041728677](https://openairdocs.org/sdr/IPXA2018041728677), Apr 17, 2018: FIRE LOOP. MALFUNCTIONED. DESCENDING THROUGH FL180, NR 3 ENGINE FIRE LOOP B STATUS MESSAGE. GROUND TEST PASSED. REPLACED THE NR 3 ENGINE LOWER LOOP ASSY IAW AMM 26-11-02-4, OPS TESTED GO - [SDR UIEA2017112402287](https://openairdocs.org/sdr/UIEA2017112402287), Nov 23, 2017: FIRE WARNING. FALSE ACTIVATION. "ENG FIRE NR 1" EICAS. RAN CHECK LIST INDICATION EXTINGUISHED NO BOTTLES DISCHARGED. - [SDR SAJF2017091806032](https://openairdocs.org/sdr/SAJF2017091806032), Sep 16, 2017: CONTROL UNIT. FAILED. STATUS MESSAGE FOR STBY BUS APU. CMC FOUND MESSAGE 24727 IAW FIM 24-60 TASK 809, REV 90 FOR TROUBLESHOOTING, J4 TO BCU2 WIRING CHECKED NORMAL. SWAPPED BCU 1 AND - [SDR IPXA2017082821075](https://openairdocs.org/sdr/IPXA2017082821075), Aug 28, 2017: SEAL. BROKEN. NR 4 EMERGENCY DECENT DEIVCE HAS SEAL BROKEN. REMOVED & REPLACED THE DEVICE IAW MM 25-61-01. - [SDR IPXA2017082821074](https://openairdocs.org/sdr/IPXA2017082821074), Aug 28, 2017: SEAL. BROKEN. NR 3 EMERGENCY DECENT DEVICE HAS SEAL BROKEN. REMOVED & REPLACED THE DEVICE IAW MM 25-61-01. - [SDR IPXA2017082821070](https://openairdocs.org/sdr/IPXA2017082821070), Aug 28, 2017: SEAL. BROKEN. NR 2 EMERGENCY ESCAPE DEVICE SEAL BROKEN. REMOVED & REPLACED DEVICE IAW MM 25-61-01. - [SDR IPXA2017082821069](https://openairdocs.org/sdr/IPXA2017082821069), Aug 28, 2017: ESCAPE REEL. UNSERVICEABLE. NR 1 EMERGENCY ESCAPE DEVICE SEAL BROKEN. REMOVED & REPLACED THE DEVICE IAW MM 25-61-01. - [SDR IPXA2017082821051](https://openairdocs.org/sdr/IPXA2017082821051), Aug 28, 2017: ESCAPE REEL. UNSERVICEABLE. DURING A CHECK, FOUND EMERGENCY ESCAPE DESENT DEVICE NR 2. BLUE GORMMET SEAL BROKEN. R & R NR 2 EMERGENCY DESENT DEVICE IAW AMM 25-61-01. - [SDR IPXA2017051417070](https://openairdocs.org/sdr/IPXA2017051417070), May 13, 2017: AXE. DAMAGED. MAIN CARGO DECK CRASH AXE BLADE DAMAGED. R & R CRASH AXE IAW AMM 25-60-00-216-005. - [SDR SAJF201705230001](https://openairdocs.org/sdr/SAJF201705230001), May 7, 2017: ROD END. CRACKED. LATERAL CONTROL PROBLEM IN FLT. LOSS OF INBOARD AILERON (RIGHT) IN FLT IS SUSPECTED. GROUND CHECK FOUND RT I/B AILERON ACTUATOR ROD END CRACK. REPLACE ACTUATOR - [SDR IPXA2017022814506](https://openairdocs.org/sdr/IPXA2017022814506), Feb 11, 2017: WEB. CRACKED. INSPECTION TYPE: C2, CRACK ON RT WING FRONT SPAR WEB UPPER SIDE NEAR FSSI 655. REPAIRED IAW SRID 4-3693546718. - [SDR U2RA201705250001](https://openairdocs.org/sdr/U2RA201705250001), Jan 28, 2017: FRAME. CRACKED. DURING ACCOMPLISHMENT OF AD 2016-05-12, SERVICE BULLETIN 747-53A2507 REVISION 2, FOUND BS 1160 PREVIOUS TENSION TIE ATTACH POINT WITH 2 FASTENER HOLES CRACKED. All 275: https://openairdocs.org/model/boeing-747-400/reports.md ## STCs that may be installed (OpenAirDocs) (699, 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 ST02166SE](https://openairdocs.org/stc/ST02166SE): Installation of additional bunks in the Door 5 Overhead Crew Rest on Boeing Model 747-400 series aircraft. B/E Aerospace, Inc. - FSI - [STC ST00197IB](https://openairdocs.org/stc/ST00197IB): Installation of the Universal Quick Access Recorder (uQAR). Flight Data Technologies Inc - [STC ST00437AT](https://openairdocs.org/stc/ST00437AT): Installation of Collins SAT-906 SATCOM System with Canadian- Marconi CMA-2102 Antenna System and Ball Airlink Low Gain Antenna. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST00552AT](https://openairdocs.org/stc/ST00552AT): Installation of a Collins SATCOM update from 900 SDU to 906 SDU. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST01859AT-D](https://openairdocs.org/stc/ST01859AT-D): Installation of a Collins CPL-920D H.F. Antenna coupler in a provisioned aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST01959AT-D](https://openairdocs.org/stc/ST01959AT-D): Installation of Ball Aerospace Camera entertainment system. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST02621AT-D](https://openairdocs.org/stc/ST02621AT-D): Installation In-flight Entertainment System provisions. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03091AT-D](https://openairdocs.org/stc/ST03091AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03092AT-D](https://openairdocs.org/stc/ST03092AT-D): Interior modification. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03143AT-D](https://openairdocs.org/stc/ST03143AT-D): Installation of a Rockwell Collins AERO H+ SATCOM System. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03419AT](https://openairdocs.org/stc/ST03419AT): Rockwell Collins SATCOM High Speed Transmitter Installation. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03504AT-D](https://openairdocs.org/stc/ST03504AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03556AT-D](https://openairdocs.org/stc/ST03556AT-D): Installation and Reactivation of a SATCOM System (Honeywell) and an ACARS System Upgrade (Rockwell Collins). AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST03821AT-D](https://openairdocs.org/stc/ST03821AT-D): Installation of a Panasonic eX2 In-Flight Entertainment System in a Boeing 747-400 aircraft. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST04378AT](https://openairdocs.org/stc/ST04378AT): VIP Cabin IFE / Communication systems upgrades. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST04379AT](https://openairdocs.org/stc/ST04379AT): Installation of Gogo 2Ku WiFi System. AIRCRAFT RECONFIG TECHNOLOGIES, LLC - [STC ST00952LA](https://openairdocs.org/stc/ST00952LA): Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON LLC d/b/a MASS Systems - [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc - [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc - [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC - [STC ST00030IB](https://openairdocs.org/stc/ST00030IB): Installation of Test Tech ELT. APTOZ EHF - [STC ST02927NY](https://openairdocs.org/stc/ST02927NY): Installation of a Panasonic Avionics Corporation Global Communications Suite Antenna. Delta Engineering Corporation - [STC ST03047CH](https://openairdocs.org/stc/ST03047CH): Certification of Compatibility with Cellular and Wireless Data Technologies. Delta Engineering Corporation - [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc - [STC SA3943NM](https://openairdocs.org/stc/SA3943NM): Installation of C&D interiors outboard bins and sidewall panels, stowage unit, class divider, super bin kit. Safran Cabin Inc - [STC SA5799NM](https://openairdocs.org/stc/SA5799NM): Installation of a modular lavatory retrofit kit. Safran Cabin Inc - [STC ST00484SE](https://openairdocs.org/stc/ST00484SE): Installation of interior retrofit kit. Safran Cabin Inc - [STC ST00661SE](https://openairdocs.org/stc/ST00661SE): Installation of upper deck closets. Safran Cabin Inc - [STC ST00734SE](https://openairdocs.org/stc/ST00734SE): Installation of interior retrofit kit. Safran Cabin Inc - [STC ST00773SE](https://openairdocs.org/stc/ST00773SE): Installation of Upper Deck Overhead Stowage Bin Interior Retrofit. Safran Cabin Inc - [STC ST00776SE](https://openairdocs.org/stc/ST00776SE): Installation of interior kits. Safran Cabin Inc - [STC ST00799LA](https://openairdocs.org/stc/ST00799LA): Installation of a folding cart stowage unit and modifications. Safran Cabin Inc - [STC ST00835SE](https://openairdocs.org/stc/ST00835SE): Installation of interior components. Safran Cabin Inc - [STC ST00836SE](https://openairdocs.org/stc/ST00836SE): Installation of interior components and in-flight entertainment system. Safran Cabin Inc - [STC ST00942SE](https://openairdocs.org/stc/ST00942SE): Installation of Airshow 420 News and Weather Information System kit. Safran Cabin Inc - [STC ST01061SE](https://openairdocs.org/stc/ST01061SE): Installation of Airshow 420 News and Weather Information System. Safran Cabin Inc - [STC ST01152SE](https://openairdocs.org/stc/ST01152SE): Installation Interior Components. Safran Cabin Inc - [STC ST01315LA](https://openairdocs.org/stc/ST01315LA): Installation of a forward facing flight attendant seat. Safran Cabin Inc - [STC ST01503SE](https://openairdocs.org/stc/ST01503SE): Installation of Interior components. Safran Cabin Inc - [STC ST01507SE](https://openairdocs.org/stc/ST01507SE): Installation of interior components. Safran Cabin Inc - [STC ST01523SE](https://openairdocs.org/stc/ST01523SE): Installation of interior components. Safran Cabin Inc - [STC ST01532SE](https://openairdocs.org/stc/ST01532SE): Installation of interior components. Safran Cabin Inc - [STC ST01533SE](https://openairdocs.org/stc/ST01533SE): Installation of interior components. Safran Cabin Inc - [STC ST01554SE](https://openairdocs.org/stc/ST01554SE): Installation of interior components. Safran Cabin Inc - [STC ST01622SE](https://openairdocs.org/stc/ST01622SE): Installation of interior components. Safran Cabin Inc - [STC ST01780SE](https://openairdocs.org/stc/ST01780SE): Installation of interior components. Safran Cabin Inc - [STC ST01880LA](https://openairdocs.org/stc/ST01880LA): Installation of pantry. Safran Cabin Inc - [STC ST01986NY-D](https://openairdocs.org/stc/ST01986NY-D): Update of Panasonic Avionics Corporation System 3000 passenger entertainment system. Safran Cabin Inc All 699: https://openairdocs.org/model/boeing-747-400/stcs.md ## The same model under other registry codes Amateur-built copies and renamed makers get their own codes. - [Boeing 747-446](https://openairdocs.org/model/boeing-747-446): 10 registered aircraft, registry code 13848CJ - [Boeing 747-422](https://openairdocs.org/model/boeing-747-422): 8 registered aircraft, registry code 1384935 - [Boeing 747-412](https://openairdocs.org/model/boeing-747-412): 5 registered aircraft, registry code 13848BS - [Boeing 747-409](https://openairdocs.org/model/boeing-747-409): 4 registered aircraft, registry code 13848AU - [Boeing 747-481](https://openairdocs.org/model/boeing-747-481): 3 registered aircraft, registry code 13848ZZ - [Boeing 747-443](https://openairdocs.org/model/boeing-747-443): 2 registered aircraft, registry code 13848BU - [Boeing 747-438](https://openairdocs.org/model/boeing-747-438): 2 registered aircraft, registry code 13848CA - [Boeing 747-428](https://openairdocs.org/model/boeing-747-428): 2 registered aircraft, registry code 138493A - [Boeing 747-451](https://openairdocs.org/model/boeing-747-451): 1 registered aircraft, registry code 1384940 - [Boeing 747-469](https://openairdocs.org/model/boeing-747-469): 0 registered aircraft, registry code 1384801 - [Boeing 747-444](https://openairdocs.org/model/boeing-747-444): 0 registered aircraft, registry code 13848BC - [Boeing 747-468](https://openairdocs.org/model/boeing-747-468): 0 registered aircraft, registry code 13848BD --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.