# N550NW: 2001 Boeing 757-251

- Status: Valid registration
- Airframe: [Boeing 757-251](https://openairdocs.org/model/boeing-757-251) (registry code 1384970, 178 seats)
- Engine: [Pratt & Whitney PW2037](https://openairdocs.org/engine/pratt-whitney-pw2037) (registry code 52117)
- Data sheets: [TCDS A2NM](https://openairdocs.org/tcds/A2NM) (The Boeing Company), [TCDS E17NE](https://openairdocs.org/tcds/E17NE) (Pratt & Whitney) (OpenAirDocs)
- Serial number: 26497
- Year built: 2001
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: June 19, 2001
- Certificate issued: December 31, 2009
- Expires: June 30, 2029
- Mode S code: A700AC
- Registered owner: [Delta Air Lines Inc](https://openairdocs.org/faa-owner/DELTA%20AIR%20LINES%20INC)
- Location: [Atlanta, GA](https://openairdocs.org/faa-place/GA/Atlanta)
- Owner type: Corporation
- Owner's area on the map: 33.6604° N, 84.3865° W: Placed by OpenAirDocs at the center of ZIP code 30354, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=550NW
- Page: https://openairdocs.org/aircraft/N550NW

From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination.

## ADs that may apply (OpenAirDocs): 331 in force

### Matched by airframe (Boeing 757-251)

- [AD 2026-13-16](https://openairdocs.org/ad/2026-13-16): Navigation · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 6 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 2026-08-09](https://openairdocs.org/ad/2026-08-09): Wings · Boeing 757-200 Series and 757-300 Series with STC ST01518SE. Effective Jun 3, 2026
- [AD 2026-04-06](https://openairdocs.org/ad/2026-04-06): Wings · Boeing 757-200 Series and 757-300 Series. Effective Feb 26, 2026
- [AD 2026-01-05](https://openairdocs.org/ad/2026-01-05): Wings · Boeing 757-200 Series and 757-300 Series. Effective Feb 20, 2026
- [AD 2025-23-03](https://openairdocs.org/ad/2025-23-03): Fire protection · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Jan 13, 2026
- [AD 2025-20-14](https://openairdocs.org/ad/2025-20-14): Equipment/furnishings · Boeing 757-200 Series. Effective Jan 2, 2026
- [AD 2025-20-04](https://openairdocs.org/ad/2025-20-04): Flight controls · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Nov 6, 2025
- [AD 2025-19-11](https://openairdocs.org/ad/2025-19-11): Landing Gear · Boeing 757-200 Series, 757-200PF Series and 757-200CB Series. Effective Nov 6, 2025
- [AD 2025-11-01](https://openairdocs.org/ad/2025-11-01): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Jul 8, 2025
- [AD 2025-02-13](https://openairdocs.org/ad/2025-02-13): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Mar 17, 2025
- [AD 2025-02-07](https://openairdocs.org/ad/2025-02-07): Navigation · Modification of Rockwell Collins, Inc. Multi-Mode Receiver (STC ST01883WI or 4 others). Effective Mar 17, 2025
- [AD 2024-25-09](https://openairdocs.org/ad/2024-25-09): Hydraulic power · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Feb 14, 2025
- [AD 2024-24-01](https://openairdocs.org/ad/2024-24-01): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Jan 13, 2025
- [AD 2024-12-09](https://openairdocs.org/ad/2024-12-09): Wings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Aug 22, 2024
- [AD 2024-10-07](https://openairdocs.org/ad/2024-10-07): Fuselage · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Jul 19, 2024
- [AD 2024-10-05](https://openairdocs.org/ad/2024-10-05): Equipment/Furnishings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jul 19, 2024
- [AD 2024-12-07](https://openairdocs.org/ad/2024-12-07): Fuselage · Boeing 757-200 Series with STC ST01529SE or ST02278SE. Effective Jul 11, 2024
- [AD 2024-07-05](https://openairdocs.org/ad/2024-07-05): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Jun 5, 2024
- [AD 2024-05-09](https://openairdocs.org/ad/2024-05-09): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective May 8, 2024
- [AD 2023-13-12](https://openairdocs.org/ad/2023-13-12): Oxygen · Boeing 737-100 Series, 737-200 Series, 737-200C Series and 17 more. Effective Sep 5, 2023
- [AD 2023-12-12](https://openairdocs.org/ad/2023-12-12): Navigation · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 6 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 2022-20-15](https://openairdocs.org/ad/2022-20-15): Wings · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Dec 7, 2022
- [AD 2022-15-09](https://openairdocs.org/ad/2022-15-09): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Aug 17, 2022
- [AD 2022-15-08](https://openairdocs.org/ad/2022-15-08): Information systems · Airbus A318-111, A318-112, A319-111 and 49 more. Effective Aug 12, 2022
- [AD 2022-13-04](https://openairdocs.org/ad/2022-13-04): Fuselage · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Aug 12, 2022
- [AD 2022-07-07](https://openairdocs.org/ad/2022-07-07): Equipment/furnishings · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective May 26, 2022
- [AD 2021-26-28](https://openairdocs.org/ad/2021-26-28): Fuel · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Mar 3, 2022
- [AD 2021-22-23](https://openairdocs.org/ad/2021-22-23): Wings · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Dec 29, 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 2021-05-11](https://openairdocs.org/ad/2021-05-11): Flight controls · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Apr 19, 2021
- [AD 2020-20-10](https://openairdocs.org/ad/2020-20-10): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Nov 10, 2020
- [AD 2020-04-15](https://openairdocs.org/ad/2020-04-15): Air conditioning · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 4 more. Effective May 8, 2020
- [AD 2020-05-25](https://openairdocs.org/ad/2020-05-25): Fuselage · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective May 4, 2020
- [AD 2020-01-18](https://openairdocs.org/ad/2020-01-18): Fuel, Fuselage, Wings · Winglets, wing structural reinforcement (Aviation Partners Boeing STC ST01518SE). Effective Mar 5, 2020
- [AD 2019-24-18](https://openairdocs.org/ad/2019-24-18): Navigation · Boeing 727-100 Series, 727-100C Series, 727-200 Series and 11 more. Effective Feb 3, 2020
- [AD 2019-19-10](https://openairdocs.org/ad/2019-19-10): Fuel · Boeing 737-300 Series, 737-400 Series, 737-500 Series and 21 more. Effective Jan 16, 2020
- [AD 2019-07-04](https://openairdocs.org/ad/2019-07-04): Editorial Note: Rule document 2019-07587 was originally published on pages 15949 through 15952 in the issue of Wednesday, April 17, 2019. In that publication, on page 15951, in the title of  
 the Airworthiness Directive, ''-04'' was inadvertently left out. The corrected document is republished in its entirety. · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective May 22, 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 2018-20-13](https://openairdocs.org/ad/2018-20-13): Fuel · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 13 more. Effective Nov 15, 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 2018-18-07](https://openairdocs.org/ad/2018-18-07): Fuselage · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Oct 10, 2018
- [AD 2018-06-08](https://openairdocs.org/ad/2018-06-08): Fuselage · Boeing 757-200 Series. Effective Apr 19, 2018
- [AD 2017-26-07](https://openairdocs.org/ad/2017-26-07): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Feb 7, 2018
- [AD 2017-26-02](https://openairdocs.org/ad/2017-26-02): Doors · Boeing 757-200 Series. Effective Jan 24, 2018
- [AD 2017-22-12](https://openairdocs.org/ad/2017-22-12): Wings · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Dec 26, 2017
- [AD 2017-20-05](https://openairdocs.org/ad/2017-20-05): Fuselage · Boeing 757-200 Series and 757-300 Series. Effective Nov 6, 2017
- [AD 2017-19-10](https://openairdocs.org/ad/2017-19-10): Doors · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Oct 27, 2017
- [AD 2017-12-14](https://openairdocs.org/ad/2017-12-14): Fuselage · Boeing 757-200 Series and 757-200PF Series. Effective Jul 25, 2017

### Matched by engine (Pratt & Whitney PW2037)

- [AD 2026-07-06](https://openairdocs.org/ad/2026-07-06): Turbine Section · Pratt & Whitney F117-PW-100, PW2037, PW2037D and 3 more. Effective May 29, 2026
- [AD 2024-12-04](https://openairdocs.org/ad/2024-12-04): Turbine Section · Pratt & Whitney PW2037, PW2037M and PW2040. Effective Aug 13, 2024
- [AD 2021-14-13](https://openairdocs.org/ad/2021-14-13): Turbine Section · Pratt & Whitney F117-PW-100, PW2037, PW2037M and 1 more. Effective Sep 1, 2021
- [AD 2019-05-01](https://openairdocs.org/ad/2019-05-01): Turbine/Turboprop Engine · Pratt & Whitney F117-PW-100, PW2037, PW2037D and 6 more. Effective Apr 16, 2019
- [AD 2018-22-06](https://openairdocs.org/ad/2018-22-06): Fuel Control/Turbine Engines · Pratt & Whitney PW2037, PW2037M and PW2040. Effective Dec 3, 2018
- [AD 2018-14-10](https://openairdocs.org/ad/2018-14-10): Fuel Control Turbine Engines · Pratt & Whitney PW2037, PW2037M and PW2040. Effective Sep 28, 2018
- [AD 2012-02-01](https://openairdocs.org/ad/2012-02-01): Fan blades · Pratt & Whitney Division PW2037, PW2037M and PW2040. Effective Apr 24, 2012
- [AD 2009-14-05](https://openairdocs.org/ad/2009-14-05): High-pressure compressor (HPC) · Pratt & Whitney Division PW2037, PW2037M and PW2040. Effective Jul 23, 2009
- [AD 2009-10-08](https://openairdocs.org/ad/2009-10-08): High-pressure turbine 2nd stage hubs that have previously been exposed to Pratt & Whitney cleaning procedure SPOP 10 or SPOP 9 or equivalent procedure. · Pratt & Whitney Division PW2037, PW2037M and PW2040. Effective Jun 17, 2009
- [AD 2007-02-06](https://openairdocs.org/ad/2007-02-06): High pressure compressor (HPC) drum rotor disk assemblies · Pratt & Whitney Division PW2037, PW2037M and PW2040. Effective Feb 28, 2007
- [AD 2005-18-03](https://openairdocs.org/ad/2005-18-03): Engine manufacturer's time limits section (TLS) · Pratt & Whitney Division PW2037, PW2037D, PW2037M and 5 more. Effective Feb 28, 2006
- [AD 99-20-03](https://openairdocs.org/ad/99-20-03): High Pressure Turbine Disks · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 2 more. Effective Nov 23, 1999
- [AD 96-18-08 R1](https://openairdocs.org/ad/96-18-08-R1): (HPT) High Pressure or (LPT) Low Pressure Turbine · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 2 more. Effective Nov 10, 1998
- [AD 97-11-51 R1](https://openairdocs.org/ad/97-11-51-R1): First Stage High Pressure Turbine (HPT) Disk Assembly · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 5 more. Effective Aug 7, 1997
- [AD 88-03-52](https://openairdocs.org/ad/88-03-52): Fuel Quantity Indication System · Pratt & Whitney Division PW2037 and PW2040. Effective Jul 13, 1988

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

- [AD 2022-08-12](https://openairdocs.org/ad/2022-08-12) (historical): Wings · Boeing 757-200 Series, 757-200PF Series, 757-200CB Series and 1 more. Effective Jun 10, 2022
- [AD 2022-04-05](https://openairdocs.org/ad/2022-04-05) (historical): Navigation · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 6 more. Effective Feb 14, 2022
- [AD 2020-21-17](https://openairdocs.org/ad/2020-21-17) (historical): Wings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jan 14, 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 2019-23-06](https://openairdocs.org/ad/2019-23-06) (historical): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Jan 13, 2020
- [AD 2019-20-03](https://openairdocs.org/ad/2019-20-03) (historical): Information systems · Airbus A340-312, A340-313, A318-111 and 48 more. Effective Nov 19, 2019
- [AD 2019-12-13](https://openairdocs.org/ad/2019-12-13) (historical): Flight controls · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jul 12, 2019
- [AD 2018-26-03](https://openairdocs.org/ad/2018-26-03) (historical): Equipment/furnishings · Boeing 757-200 Series. Effective Jan 31, 2019
- [AD 2018-16-05](https://openairdocs.org/ad/2018-16-05) (historical): Wings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Sep 10, 2018
- [AD 2018-06-07](https://openairdocs.org/ad/2018-06-07) (historical): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective May 3, 2018
- [AD 2017-24-10](https://openairdocs.org/ad/2017-24-10) (historical): Fuselage · Boeing 757-200 Series, 757-200PF Series and 757-300 Series. Effective Jan 9, 2018
- [AD 2017-26-10](https://openairdocs.org/ad/2017-26-10) (historical): Flight controls · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jan 3, 2018
- [AD 2015-08-01](https://openairdocs.org/ad/2015-08-01) (historical): Flight Controls · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective May 26, 2015
- [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 2012-15-15](https://openairdocs.org/ad/2012-15-15) (historical): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Oct 3, 2012
- [AD 2011-01-15](https://openairdocs.org/ad/2011-01-15) (historical): Fuselage · Boeing 757-200 Series, 757-200CB Series and 757-300 Series. Effective Jan 25, 2011
- [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 2008-23-19](https://openairdocs.org/ad/2008-23-19) (historical): Left and right main fuel tanks · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Dec 30, 2008
- [AD 2008-13-20](https://openairdocs.org/ad/2008-13-20) (historical): Aft hinge fittings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Aug 6, 2008
- [AD 2008-10-11](https://openairdocs.org/ad/2008-10-11) (historical): Fuel tank systems · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jun 12, 2008
- [AD 2008-09-07](https://openairdocs.org/ad/2008-09-07) (historical): Fuel filter · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 4 more. Effective May 8, 2008
- [AD 2008-05-10](https://openairdocs.org/ad/2008-05-10) (historical): Vertical flange and bulkhead · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 9 more. Effective Mar 18, 2008
- [AD 2007-16-13](https://openairdocs.org/ad/2007-16-13) (historical): Shim installation · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Aug 24, 2007
- [AD 2007-03-01](https://openairdocs.org/ad/2007-03-01) (historical): Power feeder wire bundles · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Mar 5, 2007
- [AD 2006-20-11](https://openairdocs.org/ad/2006-20-11) (historical): Rivet inspection · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Nov 8, 2006
- [AD 2006-11-11](https://openairdocs.org/ad/2006-11-11) (historical): Fatigue cracking of PSEs · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jun 30, 2006
- [AD 2005-18-18](https://openairdocs.org/ad/2005-18-18) (historical): Left and right engine-to-wing aft fairings · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Oct 14, 2005
- [AD 2005-12-05](https://openairdocs.org/ad/2005-12-05) (historical): Flight deck door · Reinforced cockpit door (Safran Cabin STC ST01335LA or 2 others). Effective Jul 19, 2005
- [AD 2005-12-04](https://openairdocs.org/ad/2005-12-04) (historical): Aft torque bulkhead · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Jun 29, 2005
- [AD 2005-04-14](https://openairdocs.org/ad/2005-04-14) (historical): Joint of the mid-bulkhead and the upper link fittings · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Mar 15, 2005
- [AD 2004-12-07](https://openairdocs.org/ad/2004-12-07) (historical): Nacelle strut and wing structure · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Jul 21, 2004
- [AD 2004-09-32](https://openairdocs.org/ad/2004-09-32) (historical): Fuselage skin · Boeing 757-200 Series. Effective May 24, 2004
- [AD 2003-18-05](https://openairdocs.org/ad/2003-18-05) (historical): Nacelle Strut and Wing Structure · Boeing 757-200 Series, 757-200CB Series, 757-200PF Series and 1 more. Effective Oct 16, 2003
- [AD 94-01-10 R1](https://openairdocs.org/ad/94-01-10-R1) (historical): Engine thrust reverser system · Boeing 757-200 Series and 757-200PF Series. Effective Sep 18, 2003
- [AD 2003-14-04](https://openairdocs.org/ad/2003-14-04) (historical): Flight Deck Door Pressure Relief Latch Assemblies · Boeing 737-200 Series, 737-300 Series, 737-400 Series and 14 more. Effective Jul 25, 2003
- [AD 2003-07-08](https://openairdocs.org/ad/2003-07-08) (historical): Upper link fittings · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Apr 18, 2003
- [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
- [AD 99-27-06](https://openairdocs.org/ad/99-27-06) (historical): Thrust Reverser Cable · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Feb 7, 2000
- [AD 99-18-16](https://openairdocs.org/ad/99-18-16) (historical): Modular Avionics Warning Electronic Assembly or Warning Electronics Unit · Boeing 747-400 Series, 747-400D Series, 747-400F Series and 6 more. Effective Sep 16, 1999
- [AD 99-09-13](https://openairdocs.org/ad/99-09-13) (historical): Forward Lavatory · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Jun 1, 1999
- [AD 97-06-04](https://openairdocs.org/ad/97-06-04) (historical): Lower Spar Chord · Boeing 757-200 Series, 757-200CB Series and 757-200PF Series. Effective Mar 28, 1997
- [AD 74-08-09 R2](https://openairdocs.org/ad/74-08-09-R2) (historical): Waste Receptacles · Aero Spacelines 377, 377MG, 377SGT and 268 more. Effective Jul 29, 1996
- [AD 2017-12-03](https://openairdocs.org/ad/2017-12-03) (historical): Fuel Control Turbine Engines · Pratt & Whitney PW2037, PW2037M and PW2040. Effective Jul 20, 2017
- [AD 2017-11-06](https://openairdocs.org/ad/2017-11-06) (historical): Turbine/ Turboprop Engine · Pratt & Whitney F117-PW-100, PW2037, PW2037D and 6 more. Effective Jul 18, 2017
- [AD 2014-05-32](https://openairdocs.org/ad/2014-05-32) (historical): Diffuser-to-high-pressure turbine (HPT) case flange · Pratt & Whitney F117-PW-100, PW2037, PW2037D and 8 more. Effective May 5, 2014
- [AD 2002-12-06](https://openairdocs.org/ad/2002-12-06) (historical): Time Limits Section (TLS) · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 5 more. Effective Jul 17, 2002
- [AD 2000-21-09](https://openairdocs.org/ad/2000-21-09) (historical): Critical Life-limited Parts · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 5 more. Effective Jan 22, 2001
- [AD 99-08-14](https://openairdocs.org/ad/99-08-14) (historical): Maintenance Program, Mandatory Inspections · Pratt & Whitney Division PW2037, PW2037M, PW2040 and 5 more. Effective May 13, 1999

All 381: https://openairdocs.org/aircraft/N550NW/ads.md

## Information bulletins (advisory) (13 in force)

- [SAIB 2026-09](https://openairdocs.org/saib/2026-09): HYDRAULIC POWER, Hydraulic Power Transfer Unit System. Issued Apr 6, 2026
- [SAIB 2025-02](https://openairdocs.org/saib/2025-02): DOORS, Main Deck Cargo Door. Issued Feb 21, 2025
- [SAIB 2025-01](https://openairdocs.org/saib/2025-01): HYDRAULIC POWER SYSTEM, Fatigue Failure of Hydraulic Flexible Hoses. Issued Jan 14, 2025
- [SAIB NM-20-07](https://openairdocs.org/saib/NM-20-07): Navigation - Glideslope System. Issued Apr 16, 2020
- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019
- [SAIB NM-18-33](https://openairdocs.org/saib/NM-18-33): Engine Fuel and Control. Issued Dec 17, 2018
- [SAIB NM-17-17](https://openairdocs.org/saib/NM-17-17): Oxygen System. Issued Jun 19, 2017
- [SAIB NM-17-10](https://openairdocs.org/saib/NM-17-10): Maintenance Practices. Issued Apr 13, 2017
- [SAIB NM-15-03](https://openairdocs.org/saib/NM-15-03): Flight Controls. Issued Nov 24, 2014
- [SAIB NM-10-24](https://openairdocs.org/saib/NM-10-24): Hydraulic Motors: Hydraulic Motor Generator (HMG) Inadvertent Lock-out. Issued Mar 31, 2010
- [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-07-14](https://openairdocs.org/saib/NM-07-14): M10444 APU/Cargo Fire Control Panel (APU/CFCP). Issued Jan 3, 2007
- [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

## NTSB investigations (2)

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

- [NTSB ANC04IA058](https://openairdocs.org/ntsb/ANC04IA058), May 31, 2004: Boeing 757-251 (N550NW), Anchorage, AK, incident, no damage. Probable cause: The failure of the flight attendant to follow the appropriate door opening procedure by remaining clear of the door handle when the passenger door was opened from the outside by customer service…
- [NTSB NYC03FA039](https://openairdocs.org/ntsb/NYC03FA039), Jan 19, 2003: Boeing 757-251 (N550NW), Flushing, NY, substantial damage. Probable cause: Maintenance personnel failure to maintain aircraft control as a result of excessive throttle input.

## FAA accident and incident reports (2)

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 20040531010539I](https://openairdocs.org/incident/20040531010539I), May 31, 2004: Boeing 757251 (N550NW), Anchorage, AK. (-23) Northwest gate agent opened aircraft door 1L, while flight attendant still had her hand on the handle. The flight attendant sustained a fractured wrist.
- [Accident 20030119000609A](https://openairdocs.org/incident/20030119000609A), Jan 19, 2003: Boeing 757251 (N550NW), New York, NY, Substantial damage. (-23) N550NW, a Boeing-757 parked on gate #9 at nwaa laguardia terminal. During pre-flight inspection being accomplished by captain, collision occurred.…

## Service difficulty reports (171, newest 50)

As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

- [SDR DALA2026081904737](https://openairdocs.org/sdr/DALA2026081904737), Aug 16, 2026: LIGHT. FAULTED. ESCAPE SLIDE GIRT BAR ENGAGEMENT LIGHTS 1R SLIDE ARM LIGHT NOT ILLUMINATING. ESCAPE SLIDE GIRT BAR ENGAGEMENT LIGHT/S/1R SLIDE ARM LIGHT NOT ILLUMINATING. (1759
- [SDR DALA2026072304304](https://openairdocs.org/sdr/DALA2026072304304), Jul 23, 2026: REPAIR. NOT REPORTED. EXISTING REPAIR WAS FOUND IN THE INSPECTION AREA (LOWER AFT CORNER OF R1 DOOR CUTOUT, FROM BS 352 TO 378, BTW S15R AND S19R. STA 352 TO STA 378, BTW S15R AND S1
- [SDR DALA2026072304303](https://openairdocs.org/sdr/DALA2026072304303), Jul 22, 2026: SKIN. DEBONDED. DISBOND OF 3.750IN LENGTH AND 0.750IN WIDTH ON LE SLAT 9 TRAILING EDGE WEDGE UPPER SKIN AT OSS 707.0, IAW TASK CARD 5740-01145-05I, JOB 056-0001, STEP 3. LE SLA
- [SDR DALA2026071804232](https://openairdocs.org/sdr/DALA2026071804232), Jul 18, 2026: STRAP. CRACKED. CRACK ON STABILAZER STRAP BTW BS 360.26 AND BS 377 LBL 20 APROX AT ZONE 117 ABOVE NLW W/W. CRACK ON STABILAZER STRAP BTW BS 360.26 AND BS 377 LBL 20 APROX AT ZO
- [SDR DALA2026071604196](https://openairdocs.org/sdr/DALA2026071604196), Jul 15, 2026: FITTING. CORRODED. CORROSION ON FITTING OF GIRT BAR FROM PASSENGER DOOR R1. FITTING OF GIRT BAR FROM PASSENGER DOOR R1 WAS REPLACED PER B757-200 AMM 25-66-10. (LP 1701748 - AIRCRA
- [SDR DALA2026071404139](https://openairdocs.org/sdr/DALA2026071404139), Jul 13, 2026: DRAG FITTING. CORRODED. IN REF CARD 5720-01100-02A STEP. 28, LT ENG DRAG FTG CLAMP, CORROSION POINTS ON FASTENER HOLE NR 2. LEVEL 2 CORROSION ON FASTENER HOLE NR 2 WAS REAMED AT FINAL 
- [SDR DALA2026040602200](https://openairdocs.org/sdr/DALA2026040602200), Apr 2, 2026: PANEL. OUT OF ADJUST. UNABLE TO ARM R3 DOOR. ADJUSTED PANEL, INDICATOR ARM, OPS CHKD GOOD. (7983334) (AIRCRAFT WAS GROUNDED)
- [SDR DALA2026030901622](https://openairdocs.org/sdr/DALA2026030901622), Mar 5, 2026: INDICATOR. INOPERATIVE. SHIP 5650 KNUCKLE KNOCKER ON 3R WILL NOT EXTEND OUT WHEN DOOR ARMED. CORRECTIVE ACTION: PERFORMED OPS TEST OF 3R DOOR AND CLEANED DEBRIS REF B757 MM 52- 11. NO 
- [SDR DALA2025121709197](https://openairdocs.org/sdr/DALA2025121709197), Dec 17, 2025: BATTERY PACK. INOPERATIVE. DURING CHECK FOUND SECTION OF EMERGENCY LIGHTS INOP. T/S ISSUE TO BATTERY PACK ON POWER SUPPLY M731. R/R BATTERY PACK IAW B757 AMM 33-51, OPS CHECK OK. (7716455
- [SDR DALA2025102707851](https://openairdocs.org/sdr/DALA2025102707851), Oct 24, 2025: CHARGER. INOPERATIVE. SHIP 5650 EMERGENCY FLOOR PATH LIGHTS INOP ROW 3-7 D/C. CORRECTIVE ACTION: R/R BATTERY PACK CHARGER (M732) IAW B757 AMM 33-51. OPS CHECK NML. (6583427)
- [SDR DALA2025091606823](https://openairdocs.org/sdr/DALA2025091606823), Sep 15, 2025: LAMP. INOPERATIVE. EMERGENCY LIGHT EXT AT R1 DOOR NOT WORKNG. RELAMPED EXT. SLIDE LIGHT AT R1 PER B757 AMM 33-51.OPS GOOD. (LP 7048203)
- [SDR DALA2025091606822](https://openairdocs.org/sdr/DALA2025091606822), Sep 15, 2025: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHT EXT AT L2 DOOR NOT WORKING. REPLACED BATTERY PER B757 AMM 33-51. REPLACED BATTERY CHARGER ASSY PER B757 AMM 33-51. OPS TESTED GOOD. POSITION M73
- [SDR DALA2025091606821](https://openairdocs.org/sdr/DALA2025091606821), Sep 15, 2025: BATTERY PACK. INOPERATIVE. EMERGENCY AISLE LIGHTS AT SEATS 18-22 NOT WORKING. REPLACED BATTERY PER B757 AMM 33-51. REPLACED BATTERY CHARGER ASSY PER B757 AMM 33-51. OPS TESTED GOOD. POSIT
- [SDR DALA2025080405820](https://openairdocs.org/sdr/DALA2025080405820), Jul 25, 2025: INDICATOR. LOOSE. SHIP 5650 L1 DOOR "KNUCKLE KNOCKER" LOOSE. CORRECTIVE ACTION: REMOVED SLIDE BUSTLE AND MID LINER FOR ACCESS AND SAFETY PIN DOOR SLIDE. REMOVED KNUCKLE BUSTER PA
- [SDR DALA2025072405576](https://openairdocs.org/sdr/DALA2025072405576), Jul 20, 2025: ECU. FAULTED. SHIP 5650 - ATO - REJECTED TAKEOFF BELOW 80 KTS DUE TO APU FAULT DURING NO BLEED TAKEOFF. CORRECTIVE ACTION: APU PLACED ON MEL FOR DC POWER LOSS FAULT. PERFORME
- [SDR DALA2025052203958](https://openairdocs.org/sdr/DALA2025052203958), May 22, 2025: INDICATOR. INOPERATIVE. SHIP 5650 DOOR ARMED KNUCKLE KNOCKER INOPERATIVE / LOCATIONS:602 THE KNUCKLE KNOCKER DOES NOT COME OUT ALL THE WAY WHEN ARMING. CORRECTIVE ACTION: CLEARED DEBRI
- [SDR DALA2025052103928](https://openairdocs.org/sdr/DALA2025052103928), May 20, 2025: GUST LOCK. BROKEN. SHIP 5650 R1 DOOR GUST LOCKING MECHANISM BROKEN. CORRECTIVE ACTION: INSTALLED ROBBED BOLT AND NEW HARDWARE PER B757 IPC 52-11. R1 DOOR GUST LOCK FUNCTIONS NORMA
- [SDR DALA2025042203159](https://openairdocs.org/sdr/DALA2025042203159), Apr 20, 2025: INDICATOR. INOPERATIVE. SHIP 5650 SLIDE INDICATOR LIGHT INOP OR DAMAGED / LOCATIONS:604. CORRECTIVE ACTION: CLEANED DOOR LOC 604 SENSORS AND RESECURED GIRT BAR COVER AS PER B757 AMM 52
- [SDR DALA2025041703019](https://openairdocs.org/sdr/DALA2025041703019), Apr 15, 2025: INDICATOR. STUCK. SHIP 5650 AFT RT DOOR NOT ARM. CORRECTIVE ACTION: FOUND KNUCKLE KNOCKER GETTING STUCK. CENTERED KNUCKLE KNOCKER OPS NML REF. B757 AMM 25-66. (7005342)
- [SDR DALA2025040802738](https://openairdocs.org/sdr/DALA2025040802738), Apr 7, 2025: SENSOR. FAULTY. SHIP 5650 -PRES/DE- DUE RIGHT ENGINE BLEED OFF WITH LEFT PACK ON MEL. CORRECTIVE ACTION: REPLACED RIGHT FAN AIR TEMP SENSOR AND LEFT PACK TEMP CONTROL VALVE.
- [SDR DALA2025040402595](https://openairdocs.org/sdr/DALA2025040402595), Apr 3, 2025: SIGN. DETACHED. SHIP 5650 2R DOOR EXIT SIGN FELL DOWN ON LANDING. CORRECTIVE ACTION: REINSTALLED 2 R DOOR EXIT SIGN COVER. (6529874)
- [SDR DALA2025040202489](https://openairdocs.org/sdr/DALA2025040202489), Mar 30, 2025: SENSOR. DIRTY. SHIP 5650 SLIDE INDICATOR LIGHT INOP OR DAMAGED / LOCATIONS:604 TURNED OFF WHEN AIRCRAFT TOOK OFF. CORRECTIVE ACTION: CLEANED GIRT BAR SENSOR. OPS TEST GOOD OF 
- [SDR DALA2025031001854](https://openairdocs.org/sdr/DALA2025031001854), Mar 6, 2025: GIRT BAR. FOD. SHIP 5650 2R DOOR ARMED LIGHT WILL NOT ILLUMINATE WHEN THE DOOR IS ARMED " SLIDE LIGHT INTERMITTENT". CORRECTIVE ACTION: REMOVED DEBRIS FROM GIRT BAR TRACK. ARM
- [SDR DALA2025022501475](https://openairdocs.org/sdr/DALA2025022501475), Feb 23, 2025: PROXIMITY SENSOR. FAULTED. SHIP 5650 AFT F/A SLIDE LIGHT INOP ESCAPE SLIDE GIRT BAR ENGAGEMENT LIGHT/S. CORRRECTIVE ACTION: REMOVED AND REPLACED 3R DOOR AFT GRIT BAR PROX SENSOR PER B757 
- [SDR DALA2025021701174](https://openairdocs.org/sdr/DALA2025021701174), Feb 12, 2025: LINER. OUT OF ADJUST. ESCAPE SLIDE POSITION INDICATOR STICKS. ADJUSTED DOOR 4R LOWER LINING & INSTALLED PLACARD. OPS CHK GOOD. REF B757 AMM 52-11.
- [SDR DALA2025010600090](https://openairdocs.org/sdr/DALA2025010600090), Jan 2, 2025: INDICATOR. OUT OF ADJUST. SHIP 5650 R4 DOOR INDICATION INOP. CORRECTIVE ACTION: ADJUSTED KNUCKLE KNOCKER ON 4R DOOR AS REQUIRED. OPS CHECK GOOD. OK FOR SVC. (6541424)
- [SDR DALA2025010212118](https://openairdocs.org/sdr/DALA2025010212118), Dec 30, 2024: PROXIMITY SWITCH. INOPERATIVE. SLIDE INDICATOR LIGHT INOP OR DAMAGED / LOCATIONS:604 LIGHT WAS ILLUMINATED WHEN DOORS WERE ARMED AND THE TURNED OFF IN AIR. R+R PROXIMITY SWITCH UNIT IAW B757 
- [SDR DALA2024111510983](https://openairdocs.org/sdr/DALA2024111510983), Nov 14, 2024: INDICATOR. OUT OF ADJUST. SHIP 5650 FA REPORTS KNUCKLE KNOCKER ON DOOR 2L DOES NOT ALWAYS ARM. CORRECTIVE ACTION: ADJUSTED 2L DOOR KNUCKLE KNOCKER REF B757 AMM 52-11. OPS CHK OK. (891432
- [SDR DALA2024111510981](https://openairdocs.org/sdr/DALA2024111510981), Nov 14, 2024: INDICATOR. INOPERATIVE. SHIP 5650 ESCAPE SLIDE ARMED CONDITION INDICATORS - 3L DOOR KNUCKLE KNOCKER INOP. CORRECTIVE ACTION: ADJUSTED 4R DOOR KNUCKLE KNOCKER REF B757 AMM 52-11. OPS CH
- [SDR DALA2024110810783](https://openairdocs.org/sdr/DALA2024110810783), Nov 7, 2024: LIGHT. FAULTED. SHIP 5650 DURING LINE UP AND WAIT FOR TAKEOFF CB R35 POPPED. FAS ALSO REPORTED THAT SLIDE LIGHTS WERE NOT ILLUMINATED ANYMORE. REPEAT WRITE UP. CORRECTIVE ACTIO
- [SDR DALA2024110810782](https://openairdocs.org/sdr/DALA2024110810782), Nov 6, 2024: CIRCUIT BREAKER. FAULTED. SHIP 5650 AFTER CLOSING DOORS, FA'S REPORTED THAT SLIDE LIGHT ON ALL DOORS NOT ILLUMINATED AND KNUCKLES KNOCKERS ON 2L AND 3R NOT WORKING PROPERLY. CORRECTIVE A
- [SDR DALA2024102110225](https://openairdocs.org/sdr/DALA2024102110225), Oct 18, 2024: PRESSURE PLATE. CORRODED. SHIP 5650 CORROSION AROUND FASTENER HOLES IN AFT CABIN FLOOR STRUCTURE PRESSURE PLATE FWD END BS.1681 APROX BL.0 TO LBL.50. DOT 129-093. CORRECTIVE ACITON: COMP
- [SDR DALA2024101710173](https://openairdocs.org/sdr/DALA2024101710173), Oct 16, 2024: SEAT TRACK. DAMAGED. SHIP 5650 MAIN CABIN SEATRACK AT BS 820 AND 870 ON SAME TRACK RBL 45 HAS DAMAGE DOT 43/126. CORRECTIVE ACTION: REMOVED SEAT TRACK MAIN CABIN STA 780 TO 880 RBL 
- [SDR DALA2024101510113](https://openairdocs.org/sdr/DALA2024101510113), Oct 13, 2024: SUPPORT CHANNEL. CORRODED. SHIP 5650 CORROSION AROUND FASTENER HOLES IN AFT MAIN CABIN FLOOR STRUCTURE SUPPORT CHANNEL ATTACH BRACKET, BS.1676 RBL .52.5. DOT 129-100. CORRECTIVE ACTION: R
- [SDR DALA2024101510112](https://openairdocs.org/sdr/DALA2024101510112), Oct 13, 2024: SUPPORT CHANNEL. CORRODED. SHIP 5650 CORROSION AROUND FASTENER HOLE IN AFT CABIN FLOOR STRUCTURE SUPPORT CHANNEL APROX BS.1675 BL.0. DOT 129-096. CORRECTIVE ACTION: REMOVED AND REPLACED F
- [SDR DALA2024101510111](https://openairdocs.org/sdr/DALA2024101510111), Oct 13, 2024: SUPPORT CHANNEL. CORRODED. SHIP 5650 CORROSION AROUND FASTENER HOLES IN AFT MAIN CABIN FLOOR STRUCTURE SUPPORT CHANNEL, BS.1660-1675 RBL.53.5. DOT 129 -101. CORRECTIVE ACTION: REMOVED AND
- [SDR DALA2024101510110](https://openairdocs.org/sdr/DALA2024101510110), Oct 13, 2024: FLOOR SUPPORT. CORRODED. SHIP 5650 SEATRACK AT BS 365.25 RBL 45 CORRODED DOT 41/126. CORRECTIVE ACTION: REMOVED CORROSION AND EVALUATED AREA, IAW B757 SRM 51-10-02, AND SRM 53-00-52, FO
- [SDR DALA2024101510109](https://openairdocs.org/sdr/DALA2024101510109), Oct 12, 2024: FLOOR SUPPORT. CORRODED. SHIP 5650 CORROSION ON MAIN CABIN AFT GALLEY FLOOR SUPPORT LH SIDE AFT MOUNT. DOT 129-090. CORRECTIVE ACTION: REMOVED AND REPLACED MAIN CABIN AFT GALLEY FLOOR S
- [SDR DALA2024101510108](https://openairdocs.org/sdr/DALA2024101510108), Oct 12, 2024: SEAT TRACK. CORRODED. SHIP 5650 MAIN CABIN SEATRACK AT BS 365.25 RBL 24 CORRODED DOT 39/126. CORRECTIVE ACTION: REMOVED SEATRACK FROM STA.365.25 TO STA. 418. RH RBL 24 IAW B 757 SRM 
- [SDR DALA2024101410060](https://openairdocs.org/sdr/DALA2024101410060), Oct 12, 2024: SEAT TRACK. CORRODED. SHIP 5650 CORROSION IN FWD MAIN CABIN FLOOR SEAT TRACK LT AND RT FLANGES, BS.337.7 LBL.45. DOT 129-109. CORRECTIVE ACTION: REMOVED FABRICATED AND INSTALLED NEW 
- [SDR DALA2024101410059](https://openairdocs.org/sdr/DALA2024101410059), Oct 12, 2024: CHANNEL. CORRODED. SHIP 5650 CORROSION IN MAIN CABIN FLOOR STRUCTURE ATTACH CHANNEL APROX BS.731 LBL.62. DOT 129-124. CORRECTIVE ACTION: REMOVED AND REPLACED MAIN CABIN FLOOR STRU
- [SDR DALA2024101410058](https://openairdocs.org/sdr/DALA2024101410058), Oct 12, 2024: SUPPORT. CORRODED. SHIP 5650 CORROSION IN MAIN CABIN FLOOR STRUCTURE CHANNEL ATTACH SUPPORT BS.724-730 LBL.61. DOT 129-123. CORRECTIVE ACTION: REMOVED AND REPLACED MAIN CABIN FLOO
- [SDR DALA2024101410057](https://openairdocs.org/sdr/DALA2024101410057), Oct 12, 2024: CREASE BEAM. CORRODED. SHIP 5650 CORROSION IN MAIN CABIN FLOOR STRUCTURE LH CREASE BEAM INNER CHORD UPPER SURFACE APROX BS.735 LBL.64. DOT 129- 122. CORRECTIVE ACTION: REMOVED AND REP
- [SDR DALA2024101410056](https://openairdocs.org/sdr/DALA2024101410056), Oct 12, 2024: CHANNEL. CORRODED. SHIP 5650 CORROSION ON NO. 4 RIGHT PASSENGER DOOR CUTOUT LOWER SILL UPPER SURFACE ATTACH SUPPORT CHANNEL, APROX BS.1655. DOT 129-076. CORRECTIVE ACTION: REMOVED
- [SDR DALA2024101110005](https://openairdocs.org/sdr/DALA2024101110005), Oct 9, 2024: FLOORBEAM. CORRODED. SHIP 5650 MAIN CABIN FLOOR SUPPORT ANGLE BS440 LBL64 CORRODED DOT 38/126. CORRECTIVE ACTION: REMOVED CORROSION AT MAIN CABIN FLOOR SUPPORT ANGLE BS440 LBL64 IAW
- [SDR DALA2024101110004](https://openairdocs.org/sdr/DALA2024101110004), Oct 9, 2024: FLOORBEAM. CORRODED. SHIP 5650 CORROSION ON TOP OF AFT CABIN FLOOR BEAM BS.1640 APROX FROM BL .0 TO LBL.10. CORRECTIVE ACTION: REMOVED CORROSION ON TOP OF AFT CABIN FLOOR BEAM BS.16
- [SDR DALA2024101009931](https://openairdocs.org/sdr/DALA2024101009931), Oct 8, 2024: FLOORBEAM. CORRODED. SHIP 5650 AREAS OF CORROSION ON TOP OF FWD MAIN CABIN FLOOR BEAM BS.377.7 BETWEEN BL.0 AND LBL.62.5. DOT 129-107. CORRECTIVE ACTION: REMOVED CORROSION AS REQUIR
- [SDR DALA2024101009930](https://openairdocs.org/sdr/DALA2024101009930), Oct 8, 2024: FLOORBEAM. CORRODED. SHIP 5650 CORROSION ON TOP OF AFT MAIN CABIN FLOOR BEAM BS .1640 APROX RBL.58.5. DOT 129-103. CORRECTIVE ACTION: REMOVED CORROSION ON TOP OF AFT MAIN CABIN FLOO
- [SDR DALA2024100209642](https://openairdocs.org/sdr/DALA2024100209642), Oct 1, 2024: SNUBBER. CORRODED. SHIP 5650 L1 PASSENGER DOOR SNUBBER CORRODED ON THE SHAFT. CORRECTIVE ACTION: -SUMMARY OF NRC:00598- REMOVED AND REPLACED L1 PASSENGER DOOR SNUBBER IAW B757 AMM
- [SDR DALA2024093009501](https://openairdocs.org/sdr/DALA2024093009501), Sep 28, 2024: SNUBBER. OUT OF TOLERANCE. SHIP 5650 R1 DOOR ROTARY SNUBBER DOES NOT PASS MINIMUN PIN EXTENSION. CORRECTIVE ACTION: -SUMMARY OF NRC:00216- REMOVED AND REPLACED R1 PASSENGER DOOR SNUBBER I

All 171: https://openairdocs.org/aircraft/N550NW/reports.md

## STCs that may be installed (OpenAirDocs) (721, first 50)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Boeing 757-251)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [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 ST12442IB](https://openairdocs.org/stc/ST12442IB): Installation of Iridium Certus Satellite System. ALAMO ENGINEERING GmbH
- [STC ST02158SE-D](https://openairdocs.org/stc/ST02158SE-D): Installation of interior reconfiguration. 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 ST02215AT-D](https://openairdocs.org/stc/ST02215AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST02391AT-D](https://openairdocs.org/stc/ST02391AT-D): Installation of Collins VDL Mode 2 System. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST02623AT-D](https://openairdocs.org/stc/ST02623AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03493AT-D](https://openairdocs.org/stc/ST03493AT-D): Interior reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03848AT-D](https://openairdocs.org/stc/ST03848AT-D): Installation of a Legrest and Curtain in a Crew Rest Area. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03937AT](https://openairdocs.org/stc/ST03937AT): Installation of an Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03951AT](https://openairdocs.org/stc/ST03951AT): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03953AT](https://openairdocs.org/stc/ST03953AT): Installation of TIMCO Aerosystems Cabin Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST03989AT](https://openairdocs.org/stc/ST03989AT): Interior Reconfiguration. AIRCRAFT RECONFIG TECHNOLOGIES, LLC
- [STC ST00952LA](https://openairdocs.org/stc/ST00952LA): Installation of Mass Systems fire extinguisher cartridges as replacements for Kidde fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON LLC d/b/a MASS Systems
- [STC ST04328NY](https://openairdocs.org/stc/ST04328NY): The Manufacture and Installation of Exterior Placards, Labels and Signs is to be performed, installed. Libellule Monde Inc
- [STC ST03875NY](https://openairdocs.org/stc/ST03875NY): Installation of interior placards, signs and markings. Libellule Monde Inc
- [STC SA7473SW](https://openairdocs.org/stc/SA7473SW): Installation of tail floodlights. The Boeing Company
- [STC ST03186NY](https://openairdocs.org/stc/ST03186NY): Installation of a Panasonic Global Communication Suite (GCS) Antenna. Delta Engineering Corporation
- [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 ST03187NY](https://openairdocs.org/stc/ST03187NY): Installation of a Panasonic Global Communication Suite (GCS). Delta Engineering Corporation
- [STC ST04635NY](https://openairdocs.org/stc/ST04635NY): Installation of Data Transmission & Automatic Calling. APTOZ EHF
- [STC ST03562AT](https://openairdocs.org/stc/ST03562AT): Modification of Passenger Aircraft to Freighter Configuration. STE Pensacola Aerospace, Inc
- [STC ST03952AT](https://openairdocs.org/stc/ST03952AT): Modification of Passenger Aircraft to Cargo/Passenger (Combi) Configuration. STE Pensacola Aerospace, Inc
- [STC ST12026AT](https://openairdocs.org/stc/ST12026AT): Installation of Portable Emergency Locator Transmitter. Delta Flight Products LLC
- [STC SA5040NM](https://openairdocs.org/stc/SA5040NM): Installation of cargo pallet and net. Satco Inc
- [STC ST02258LA-D](https://openairdocs.org/stc/ST02258LA-D): Installation of Row 44 Wireless Broadband System Activation. Anuvu IFC Corporation
- [STC ST02904CH](https://openairdocs.org/stc/ST02904CH): Installation of Row 44 Wireless Broadband System Provisions. ANUVU OPERATIONS LLC
- [STC ST03450AT](https://openairdocs.org/stc/ST03450AT): Installation of a horse stall system. Gregory Jackson
- [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 ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC SA4203NM-D](https://openairdocs.org/stc/SA4203NM-D): Installation of one (1) galley G4A storage unit. Safran Cabin Inc
- [STC SA4210NM-D](https://openairdocs.org/stc/SA4210NM-D): Installation of one class divider. Safran Cabin Inc
- [STC SA4561NM](https://openairdocs.org/stc/SA4561NM): Installation of Driessen Galleys. Safran Cabin Inc
- [STC SA5819NM](https://openairdocs.org/stc/SA5819NM): Installation of closet and class divider. Safran Cabin Inc
- [STC SA6005NM](https://openairdocs.org/stc/SA6005NM): Installation of galleys, stowage unit, doghouses and curtain tracks. Safran Cabin Inc
- [STC ST00247LA](https://openairdocs.org/stc/ST00247LA): Installation of Closet. Safran Cabin Inc
- [STC ST00487LA](https://openairdocs.org/stc/ST00487LA): Installation of stowage bin door kit. Safran Cabin Inc
- [STC ST00657SE](https://openairdocs.org/stc/ST00657SE): Installation of ATIX2 Interior retrofit kit. Safran Cabin Inc
- [STC ST00784SE](https://openairdocs.org/stc/ST00784SE): Installation of ATIX 2 Interior retrofit kit. Safran Cabin Inc
- [STC ST00869SE](https://openairdocs.org/stc/ST00869SE): Modification to overhead stowage bins located in passenger cabin to extend bins inboard. Safran Cabin Inc
- [STC ST00955LA](https://openairdocs.org/stc/ST00955LA): Installation of bin extension assembly. Safran Cabin Inc
- [STC ST01144LA](https://openairdocs.org/stc/ST01144LA): Installation of a L/H closet p/n 501081-1. Safran Cabin Inc
- [STC ST01145LA](https://openairdocs.org/stc/ST01145LA): Installation of a R/H Divider p/n 501082-1. Safran Cabin Inc
- [STC ST01146LA](https://openairdocs.org/stc/ST01146LA): Installation of a Curtain Header p/n 501083-1. Safran Cabin Inc
- [STC ST01151LA](https://openairdocs.org/stc/ST01151LA): Installation of a closet P/N 501084-1. Safran Cabin Inc
- [STC ST01187LA](https://openairdocs.org/stc/ST01187LA): Installation of a G4A Galley. Safran Cabin Inc
- [STC ST01334LA](https://openairdocs.org/stc/ST01334LA): Installation of a reinforced cockpit door. Safran Cabin Inc

All 721: https://openairdocs.org/aircraft/N550NW/stcs.md

## Related

- Other Boeing 757-251 aircraft: https://openairdocs.org/model/boeing-757-251/aircraft.md
- The Pratt & Whitney PW2037 engine: https://openairdocs.org/engine/pratt-whitney-pw2037.md

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