# N540UW: 2009 Airbus A321-231

- Status: Valid registration
- Airframe: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (registry code 3940032, 379 seats)
- Engine: [IAE V2533-A5](https://openairdocs.org/engine/iae-v2533-a5) (registry code 34611)
- Data sheets: [TCDS A28NM](https://openairdocs.org/tcds/A28NM) (Airbus SAS), [TCDS E40NE](https://openairdocs.org/tcds/E40NE) (International Aero Engines AG (IAE)) (OpenAirDocs)
- Serial number: 4107
- Year built: 2009
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: December 11, 2009
- Certificate issued: December 30, 2015
- Expires: December 31, 2028
- Mode S code: A6D9C3
- Registered owner: [American Airlines Inc](https://openairdocs.org/faa-owner/AMERICAN%20AIRLINES%20INC)
- Location: [Fort Worth, TX](https://openairdocs.org/faa-place/TX/Fort%20Worth)
- Owner type: Corporation
- Owner's area on the map: 32.8240° N, 97.0491° W: Placed by OpenAirDocs at the center of ZIP code 76155, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=540UW
- Page: https://openairdocs.org/aircraft/N540UW

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): 293 in force

### Matched by airframe (Airbus A321-231)

- [AD 2026-17-04](https://openairdocs.org/ad/2026-17-04): Landing Gear · Airbus A318-111, A318-112, A318-121 and 46 more. Effective Oct 1, 2026
- [AD 2026-17-01](https://openairdocs.org/ad/2026-17-01): Fuselage · Airbus A320-211, A320-212, A320-214 and 12 more. Effective Oct 1, 2026
- [AD 2026-18-03](https://openairdocs.org/ad/2026-18-03): Wings · Airbus A318-112, A319-115, A319-132 and 14 more. Effective Sep 18, 2026
- [AD 2026-14-04](https://openairdocs.org/ad/2026-14-04): Fuselage · Airbus A319-111, A319-112, A319-113 and 56 more. Effective Aug 14, 2026
- [AD 2026-12-02](https://openairdocs.org/ad/2026-12-02): Fuselage · Airbus A318-111, A318-112, A318-121 and 46 more. Effective Jul 14, 2026
- [AD 2026-10-17](https://openairdocs.org/ad/2026-10-17): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jul 6, 2026
- [AD 2026-10-15](https://openairdocs.org/ad/2026-10-15): Fuselage · Airbus A318-111, A318-112, A318-122 and 35 more. Effective Jul 6, 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 2026-09-17](https://openairdocs.org/ad/2026-09-17): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 45 more. Effective Jun 18, 2026
- [AD 2026-09-16](https://openairdocs.org/ad/2026-09-16): Fuselage · Airbus A319-111, A319-112, A319-113 and 33 more. Effective Jun 18, 2026
- [AD 2026-11-04](https://openairdocs.org/ad/2026-11-04): Stabilizers · Airbus A319-111, A319-112, A319-113 and 40 more. Effective Jun 15, 2026
- [AD 2026-09-03](https://openairdocs.org/ad/2026-09-03): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 45 more. Effective Jun 12, 2026
- [AD 2026-03-10](https://openairdocs.org/ad/2026-03-10): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 45 more. Effective Apr 8, 2026
- [AD 2025-23-09](https://openairdocs.org/ad/2025-23-09): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jan 13, 2026
- [AD 2025-24-51](https://openairdocs.org/ad/2025-24-51): Flight controls · Airbus A319-111, A319-112, A319-113 and 37 more. Effective Jan 6, 2026
- [AD 2025-20-19](https://openairdocs.org/ad/2025-20-19): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jan 2, 2026
- [AD 2025-20-15](https://openairdocs.org/ad/2025-20-15): Fuselage · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jan 2, 2026
- [AD 2025-19-08](https://openairdocs.org/ad/2025-19-08): Wings · Airbus A319-111, A319-113, A319-112 and 17 more. Effective Dec 30, 2025
- [AD 2025-18-03](https://openairdocs.org/ad/2025-18-03): Oxygen · Airbus A318-111, A318-112, A318-121 and 70 more. Effective Oct 20, 2025
- [AD 2025-17-05](https://openairdocs.org/ad/2025-17-05): Fuselage · Airbus A321-111, A321-112, A321-131 and 5 more. Effective Oct 1, 2025
- [AD 2025-16-10](https://openairdocs.org/ad/2025-16-10): Flight controls · Airbus A318-111, A318-112, A318-121 and 44 more. Effective Sep 22, 2025
- [AD 2025-16-04](https://openairdocs.org/ad/2025-16-04): Equipment/furnishings · Airbus A318-111, A318-112, A318-121 and 46 more. Effective Sep 18, 2025
- [AD 2025-17-17](https://openairdocs.org/ad/2025-17-17): Landing Gear · Airbus A318-111, A318-112, A318-121 and 46 more. Effective Sep 17, 2025
- [AD 2025-13-10](https://openairdocs.org/ad/2025-13-10): Wings · Airbus A319-111, A319-112, A319-113 and 36 more. Effective Aug 14, 2025
- [AD 2025-10-07](https://openairdocs.org/ad/2025-10-07): Fuselage · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jun 26, 2025
- [AD 2025-10-05](https://openairdocs.org/ad/2025-10-05): Landing gear · Airbus A321-111, A321-112, A321-131 and 15 more. Effective Jun 26, 2025
- [AD 2025-09-05](https://openairdocs.org/ad/2025-09-05): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jun 5, 2025
- [AD 2025-02-04](https://openairdocs.org/ad/2025-02-04): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Mar 17, 2025
- [AD 2025-01-02](https://openairdocs.org/ad/2025-01-02): Fuselage · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Mar 11, 2025
- [AD 2024-26-05](https://openairdocs.org/ad/2024-26-05): Oxygen · Airbus A300 B4-601, A300 B4-603, A300 B4-620 and 87 more. Effective Mar 11, 2025
- [AD 2024-25-12](https://openairdocs.org/ad/2024-25-12): Landing gear · Airbus A319-111, A319-112, A319-113 and 35 more. Effective Mar 7, 2025
- [AD 2025-03-08](https://openairdocs.org/ad/2025-03-08): Flight Controls · Airbus A318-111, A318-112, A318-121 and 70 more. Effective Feb 26, 2025
- [AD 2024-26-04](https://openairdocs.org/ad/2024-26-04): Pneumatic · Airbus A318-111, A318-112, A318-121 and 44 more. Effective Feb 18, 2025
- [AD 2024-24-10](https://openairdocs.org/ad/2024-24-10): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jan 13, 2025
- [AD 2024-24-09](https://openairdocs.org/ad/2024-24-09): Equipment/Furnishings · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jan 13, 2025
- [AD 2024-19-15](https://openairdocs.org/ad/2024-19-15): Oxygen · Safran Aerosystems Oxygen Cylinder, Valve Assembly, Oxygen Valve and 103 more. Effective Nov 26, 2024
- [AD 2024-12-01](https://openairdocs.org/ad/2024-12-01): Wings · Airbus A318-111, A318-112, A318-121 and 25 more. Effective Aug 13, 2024
- [AD 2024-11-01](https://openairdocs.org/ad/2024-11-01): Electrical Power · Airbus A300 B4-2C, A300 B4-103, A300 B4-203 and 94 more. Effective Jul 3, 2024
- [AD 2024-08-08](https://openairdocs.org/ad/2024-08-08): Electrical Power · Airbus A300 B4-2C, A300 B4-103, A300 B4-203 and 94 more. Effective Jun 6, 2024
- [AD 2024-06-07](https://openairdocs.org/ad/2024-06-07): Wings · Airbus A319-115, A320-214, A320-216 and 14 more. Effective May 22, 2024
- [AD 2024-04-04](https://openairdocs.org/ad/2024-04-04): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Apr 22, 2024
- [AD 2023-23-11](https://openairdocs.org/ad/2023-23-11): Landing gear · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jan 23, 2024
- [AD 2023-23-04](https://openairdocs.org/ad/2023-23-04): Wings · Airbus A321-111, A321-112, A321-131 and 5 more. Effective Jan 16, 2024
- [AD 2023-23-08](https://openairdocs.org/ad/2023-23-08): Electric and electronic common installation · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jan 5, 2024
- [AD 2023-20-12](https://openairdocs.org/ad/2023-20-12): Equipment/Furnishings · Airbus A318-111, A318-112, A318-121 and 38 more. Effective Nov 21, 2023
- [AD 2023-18-02](https://openairdocs.org/ad/2023-18-02): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Oct 24, 2023
- [AD 2023-13-03](https://openairdocs.org/ad/2023-13-03): Doors · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Sep 5, 2023
- [AD 2023-13-01](https://openairdocs.org/ad/2023-13-01): Fuel · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jul 12, 2023
- [AD 2023-09-11](https://openairdocs.org/ad/2023-09-11): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Jul 10, 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

### Matched by engine (IAE V2533-A5)

- [AD 2026-17-03](https://openairdocs.org/ad/2026-17-03): Turbine Engine Compressor Section · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Sep 24, 2026
- [AD 2025-19-13](https://openairdocs.org/ad/2025-19-13): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Oct 29, 2025
- [AD 2025-17-16](https://openairdocs.org/ad/2025-17-16): Turbine Engine Compressor Sections · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Oct 10, 2025
- [AD 2024-11-03](https://openairdocs.org/ad/2024-11-03): Turbine Engine · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Jun 26, 2024
- [AD 2022-02-09](https://openairdocs.org/ad/2022-02-09): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Mar 15, 2022
- [AD 2021-14-19](https://openairdocs.org/ad/2021-14-19): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Aug 5, 2021
- [AD 2021-11-51](https://openairdocs.org/ad/2021-11-51): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2527-A5 and 4 more. Effective Jul 19, 2021
- [AD 2021-05-18](https://openairdocs.org/ad/2021-05-18): Turbine Section · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 8 more. Effective Apr 29, 2021
- [AD 2021-01-03](https://openairdocs.org/ad/2021-01-03): Turbine Section · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 8 more. Effective Jan 21, 2021
- [AD 2020-09-03](https://openairdocs.org/ad/2020-09-03): Turbine Engine Compressor Section · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 8 more. Effective May 29, 2020
- [AD 2020-07-51](https://openairdocs.org/ad/2020-07-51): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 6 more. Effective Apr 28, 2020
- [AD 2019-18-01](https://openairdocs.org/ad/2019-18-01): Turbine Section · International Aero Engines V2522-A5, V2524-A5, V2527-A5 and 4 more. Effective Oct 15, 2019
- [AD 2017-14-07](https://openairdocs.org/ad/2017-14-07): Turbine Engine · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Aug 21, 2017
- [AD 2016-25-11](https://openairdocs.org/ad/2016-25-11): No. 3 bearing · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 7 more. Effective Jan 20, 2017
- [AD 2016-18-10](https://openairdocs.org/ad/2016-18-10): High- pressure turbine (HPT) stage 2 hub · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 6 more. Effective Oct 7, 2016
- [AD 2015-10-04](https://openairdocs.org/ad/2015-10-04): HPC stage 3 to 8 drum · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Jul 1, 2015
- [AD 2011-25-08](https://openairdocs.org/ad/2011-25-08): High- pressure turbine (HPT) case burn-through events · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Jan 17, 2012
- [AD 2010-06-18](https://openairdocs.org/ad/2010-06-18): Vortex reducers · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Apr 22, 2010
- [AD 2008-14-15](https://openairdocs.org/ad/2008-14-15): No. 4 bearing oil system components · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Aug 20, 2008
- [AD 2007-21-05](https://openairdocs.org/ad/2007-21-05): Monitoring of N2 vibration on all IAE V2500 series engines · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Nov 15, 2007
- [AD 2006-25-01](https://openairdocs.org/ad/2006-25-01): Master magnetic chip detector (MCD) · International Aero Engines V2522-A5, V2524-A5, V2527-A5 and 4 more. Effective Jan 8, 2007
- [AD 2004-12-08](https://openairdocs.org/ad/2004-12-08): Airworthiness Limitations Section (ALS) · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 7 more. Effective Jul 23, 2004
- [AD 2000-22-07](https://openairdocs.org/ad/2000-22-07): High Pressure Turbine (HPT) · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 6 more. Effective Dec 6, 2000
- [AD 99-13-01](https://openairdocs.org/ad/99-13-01): High Pressure Turbine (HPT) Stage 1 Inner Rotating Airseal (TOBI ID seal) · International Aero Engines V2500-A1, V2522-A5, V2524-A5 and 4 more. Effective Jun 25, 1999
- [AD 99-04-03](https://openairdocs.org/ad/99-04-03): High Pressure Compressor (HPC) Stage 9-12 Drum · International Aero Engines V2522-A5, V2524-A5, V2525-D5 and 5 more. Effective Apr 12, 1999

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

- [AD 2025-17-07](https://openairdocs.org/ad/2025-17-07) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 44 more. Effective Oct 1, 2025
- [AD 2025-10-12](https://openairdocs.org/ad/2025-10-12) (historical): Fuselage · Airbus A319-111, A319-112, A319-113 and 55 more. Effective Jul 2, 2025
- [AD 2025-03-07](https://openairdocs.org/ad/2025-03-07) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Mar 21, 2025
- [AD 2025-03-06](https://openairdocs.org/ad/2025-03-06) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Mar 21, 2025
- [AD 2024-25-06](https://openairdocs.org/ad/2024-25-06) (historical): Landing Gear · Airbus A318-111, A318-112, A318-121 and 44 more. Effective Dec 30, 2024
- [AD 2024-19-13](https://openairdocs.org/ad/2024-19-13) (historical): Time Limits/Maintenance Checks · Airbus A320-211, A320-212, A320-214 and 43 more. Effective Nov 26, 2024
- [AD 2024-04-07](https://openairdocs.org/ad/2024-04-07) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 22, 2024
- [AD 2024-04-03](https://openairdocs.org/ad/2024-04-03) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 19, 2024
- [AD 2023-25-09](https://openairdocs.org/ad/2023-25-09) (historical): Oxygen · Airbus A318-111, A318-112, A318-121 and 69 more. Effective Feb 7, 2024
- [AD 2023-13-11](https://openairdocs.org/ad/2023-13-11) (historical): Oxygen · AVOX Systems Oxygen valve assemblies (body and gage assemblies), Oxygen cylinder and valve assemblies, A300 B2-1A and 102 more. Effective Sep 5, 2023
- [AD 2023-13-10](https://openairdocs.org/ad/2023-13-10) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Sep 5, 2023
- [AD 2023-09-01](https://openairdocs.org/ad/2023-09-01) (historical): Pneumatic · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jun 26, 2023
- [AD 2023-05-02](https://openairdocs.org/ad/2023-05-02) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 18, 2023
- [AD 2023-04-06](https://openairdocs.org/ad/2023-04-06) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 10, 2023
- [AD 2022-24-05](https://openairdocs.org/ad/2022-24-05) (historical): Equipment/Furnishings · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jan 9, 2023
- [AD 2022-22-10](https://openairdocs.org/ad/2022-22-10) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Dec 30, 2022
- [AD 2022-18-09](https://openairdocs.org/ad/2022-18-09) (historical): Equipment/Furnishings · Airbus A319-111, A319-112, A319-113 and 24 more. Effective Oct 20, 2022
- [AD 2022-15-05](https://openairdocs.org/ad/2022-15-05) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Aug 31, 2022
- [AD 2022-14-10](https://openairdocs.org/ad/2022-14-10) (historical): Wings · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Aug 19, 2022
- [AD 2022-09-16](https://openairdocs.org/ad/2022-09-16) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Jun 30, 2022
- [AD 2022-08-08](https://openairdocs.org/ad/2022-08-08) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective May 26, 2022
- [AD 2022-07-08](https://openairdocs.org/ad/2022-07-08) (historical): Time Limits/Maintenance Checks, Flight Controls · Airbus A318-111, A318-112, A318-121 and 43 more. Effective May 19, 2022
- [AD 2022-07-15](https://openairdocs.org/ad/2022-07-15) (historical): Landing gear · Airbus A318-111, A318-112, A318-121 and 43 more. Effective May 2, 2022
- [AD 2022-06-02](https://openairdocs.org/ad/2022-06-02) (historical): Equipment/furnishings · Airbus A318-111, A318-112, A319-111 and 22 more. Effective Apr 26, 2022
- [AD 2022-04-09](https://openairdocs.org/ad/2022-04-09) (historical): Oxygen System · Airbus A300 B2-1A, A300 B2-1C, A300 B2K-3C and 94 more. Effective Apr 4, 2022
- [AD 2022-04-03](https://openairdocs.org/ad/2022-04-03) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Mar 30, 2022
- [AD 2022-02-11](https://openairdocs.org/ad/2022-02-11) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Mar 15, 2022
- [AD 2021-23-15](https://openairdocs.org/ad/2021-23-15) (historical): Equipment/Furnishings · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Jan 10, 2022
- [AD 2021-25-14](https://openairdocs.org/ad/2021-25-14) (historical): Wings · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Jan 5, 2022
- [AD 2021-22-04](https://openairdocs.org/ad/2021-22-04) (historical): Wings · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Dec 27, 2021
- [AD 2021-20-08](https://openairdocs.org/ad/2021-20-08) (historical): Electrical Power · Airbus A318-111, A318-112, A318-121 and 72 more. Effective Nov 18, 2021
- [AD 2021-16-01](https://openairdocs.org/ad/2021-16-01) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Sep 28, 2021
- [AD 2020-25-03](https://openairdocs.org/ad/2020-25-03) (historical): Equipment/furnishings · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Dec 28, 2020
- [AD 2020-22-16](https://openairdocs.org/ad/2020-22-16) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Dec 10, 2020
- [AD 2020-21-11](https://openairdocs.org/ad/2020-21-11) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Nov 20, 2020
- [AD 2020-21-10](https://openairdocs.org/ad/2020-21-10) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Nov 19, 2020
- [AD 2020-20-05](https://openairdocs.org/ad/2020-20-05) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Nov 19, 2020
- [AD 2020-16-01](https://openairdocs.org/ad/2020-16-01) (historical): Fire protection · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Aug 19, 2020
- [AD 2020-06-10](https://openairdocs.org/ad/2020-06-10) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective May 4, 2020
- [AD 2020-05-16](https://openairdocs.org/ad/2020-05-16) (historical): Wings · Airbus A319-115, A320-214, A320-216 and 11 more. Effective Apr 24, 2020
- [AD 2020-06-18](https://openairdocs.org/ad/2020-06-18) (historical): Flight controls · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 2, 2020
- [AD 2019-26-11](https://openairdocs.org/ad/2019-26-11) (historical): Equipment/ furnishings · Airbus A318-112, A319-115, A319-132 and 11 more. Effective Mar 12, 2020
- [AD 2020-01-17](https://openairdocs.org/ad/2020-01-17) (historical): Equipment/ furnishings · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Feb 14, 2020
- [AD 2019-24-13](https://openairdocs.org/ad/2019-24-13) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Feb 3, 2020
- [AD 2019-23-01](https://openairdocs.org/ad/2019-23-01) (historical): Time Limits/ Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 37 more. Effective Jan 9, 2020
- [AD 2019-21-10](https://openairdocs.org/ad/2019-21-10) (historical): Wings · Airbus A321-111, A321-112, A321-131 and 5 more. Effective Dec 24, 2019
- [AD 2019-20-10](https://openairdocs.org/ad/2019-20-10) (historical): Fuselage · Airbus A318-111, A318-112, A318-121 and 24 more. Effective Dec 18, 2019
- [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 2019-19-15](https://openairdocs.org/ad/2019-19-15) (historical): Time Limits/ Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 36 more. Effective Nov 14, 2019
- [AD 2019-18-07](https://openairdocs.org/ad/2019-18-07) (historical): Fuselage · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Oct 31, 2019

All 436: https://openairdocs.org/aircraft/N540UW/ads.md

## Information bulletins (advisory) (5 in force)

- [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-14-21](https://openairdocs.org/saib/NM-14-21): Communications: Honeywell RTA 44D VHF Transceivers. Issued Jun 3, 2014
- [SAIB NM-13-03](https://openairdocs.org/saib/NM-13-03): Hydraulic Power System: Power Transfer Unit. Issued Oct 23, 2012
- [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 2026-11](https://openairdocs.org/saib/2026-11): Theft of Turbofan Engine Parts before Mutilation. Issued Jun 8, 2026

## NTSB investigations

None matched to N540UW.

## FAA accident and incident reports

None matched to N540UW.

## Service difficulty reports (178, 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 AALA202607225631](https://openairdocs.org/sdr/AALA202607225631), Jul 20, 2026: GIRT BAR. LACK OF LUBE. AIRCRAFT WAS GROUNDED: 4R EMERGENCY SLIDE LEVER GRINDING WHEN ARMING. MAINTENANCE FOUND DEBRIS ON GRIT BAR AND GRIT BAR PLATE AT 4R. CLEANED AND LUBRICATED THRO
- [SDR AALA202607174925](https://openairdocs.org/sdr/AALA202607174925), Jul 14, 2026: LIGHT. NO TEST. AIRCRAFT IN BASE MAINTENANCE: LEFT-HAND SEAT ROW 4 EMERGENCY LIGHT INOPERATIVE. MAINTENANCE REPLACED EMERGENCY LIGHT PER AMM 33-51-19 AND ACCOMPLISHED A SATISFA
- [SDR AALA202606168996](https://openairdocs.org/sdr/AALA202606168996), Jun 13, 2026: LIGHT. NO TEST. AIRCRAFT WAS NOT GROUNDED: SEAT 4C SEAT-MOUNTED AISLE EMERGENCY LIGHT INOPERATIVE. MAINTENANCE REPLACED THE EMERGENCY LIGHT AND ACCOMPLISHED A SATISFACTORY OPER
- [SDR AALA202602020159](https://openairdocs.org/sdr/AALA202602020159), Jan 30, 2026: HANDLE. LOOSE. AIRCRAFT WAS NOT GROUNDED: FLIGHT ATTENDANT REPORTS DOOR 2R ARM/DISARM HANDLE LOOSE. MAINTENANCE TIGHTENED 2R ARM/DISARM HANDLE ON EMERGENCY EXIT DOOR AND ACCOM
- [SDR AALA202512101632](https://openairdocs.org/sdr/AALA202512101632), Dec 10, 2025: LEVER. LOOSE. AIRCRAFT WAS NOT GROUNDED: R2 EMERGENCY EXIT DOOR ARMING LEVER LOOSE. MAINTENANCE RESECURED ARMING LEVER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER A
- [SDR AALA202512108729](https://openairdocs.org/sdr/AALA202512108729), Dec 10, 2025: LEVER. LOOSE. AIRCRAFT WAS NOT GROUNDED: L2 EMERGENCY EXIT DOOR ARMING LEVER LOOSE. MAINTENANCE RESECURED ARMING LEVER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER A
- [SDR AALA202508253317](https://openairdocs.org/sdr/AALA202508253317), Aug 22, 2025: POWER SUPPLY. NO TEST. AIRCRAFT WAS GROUNDED: FAULT LIGHT ILLUMINATED FOR EMERGENCY POWER SUPPLY UNIT 15WL DURING SYSTEM TEST. REPLACED EMERGENCY POWER SUPPLY UNIT 15WL AND ACCOMPLISH
- [SDR AALA202505298080](https://openairdocs.org/sdr/AALA202505298080), May 29, 2025: CABLE. FAULTED. AIRCRAFT IN BASE MAINTENANCE: L1 DOOR ESCAPE SLIDE NEEDS CHANGED RETAINING CABLE FAULTY REPLACED SLIDE ASSEMBLY PER TASK CARD 26L00025010.
- [SDR AALA202505201289](https://openairdocs.org/sdr/AALA202505201289), May 19, 2025: WIRE. CUT. AIRCRAFT WAS NOT GROUNDED: 10C RED SEAT MOUNTED EMERGENCY EXIT PATH LIGHTING INOPERATIVE. UPON FURTHER TROUBLESHOOTING FOUND WIRES ARE CUT CLOSE TO SEAT MOUNT A
- [SDR AALA202411299994](https://openairdocs.org/sdr/AALA202411299994), Nov 27, 2024: FLASHLIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: FLIGHT CREW REPORTED THAT THE FLASHLIGHT UNDER #2 JUMPSEAT BY 1L DOOR NOT LIGHTING UP. REPLACED FLASHLIGHT AND ACCOMPLISHED A SATISFA
- [SDR AALA202410284934](https://openairdocs.org/sdr/AALA202410284934), Oct 27, 2024: OVEN. ODOR. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO CLT DUE TO A BURNING PLASTIC ODOR IN FORWARD GALLEY WHICH BEGAN DURING CLIMB AT AP
- [SDR AALA202405172056](https://openairdocs.org/sdr/AALA202405172056), May 16, 2024: SWITCH. DEFECTIVE. AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED AND THE AIRCRAFT RETURNED TO CLT. FLIGHT CREW REPORTED AFTER TAKEOFF CAPTAIN WAS ON COMMS AND AS SOON AS WE COM
- [SDR AALA202310057403](https://openairdocs.org/sdr/AALA202310057403), Oct 5, 2023: FLOOR PANEL. DELAMINATED. AIRCRAFT WAS NOT GROUNDED: AFT CARGO FLOOR PANEL 151PF FOUND TO BE DELAMINATED. REPAIRED FLOOR PANEL PER AARD 53-02-00-2 REPAIR 2.
- [SDR AALA202309051963](https://openairdocs.org/sdr/AALA202309051963), Sep 1, 2023: GIRT BAR. FRAYED. AIRCRAFT WAS GROUNDED: R1 DOOR SLIDE GREEN GIRT BAR CORD FOUND FRAYED AND DANGLING OUTSIDE DOOR. MAINTENANCE REPLACED SLIDE / RAFT ASSEMBLY PER 26L00025010.
- [SDR AALA202302224012](https://openairdocs.org/sdr/AALA202302224012), Feb 16, 2023: PROXIMITY SENSOR. DEFECTIVE. AIRCRAFT WAS GROUNDED: R3 DOOR SHOWS ARMED ON ECAM WHEN DISARMED. **SUPPLEMENTAL REPORT FOR AALA202302204012: MAINTENANCE REPLACED 21WV2 AND 6WN2 (AALA202302223
- [SDR AALA202302223268](https://openairdocs.org/sdr/AALA202302223268), Feb 16, 2023: PROXIMITY SENSOR. DEFECTIVE. AIRCRAFT WAS GROUNDED: R3 DOOR SHOWS ARMED ON ECAM WHEN DISARMED. **ORIGINAL REPORT WAS AALA202302204012** MAINTENANCE REPLACED 21WV2 AND 6WN2 (AALA202302223268
- [SDR AALA202302204012](https://openairdocs.org/sdr/AALA202302204012), Feb 16, 2023: NONE. NONE. AIRCRAFT WAS GROUNDED: R3 DOOR SHOWS ARMED ON ECAM WHEN DISARMED. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)
- [SDR AALA202207196543](https://openairdocs.org/sdr/AALA202207196543), Jul 16, 2022: BATTERY. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: DURING EMERGENCY LIGHT TEST MAINTENANCE FOUND EMERGENCY POWER SUPPLY UNIT 15WL BATTERY FAULTING. REPLACED BATTERY AND ACCOMPLISHED A 
- [SDR AALA202207018480](https://openairdocs.org/sdr/AALA202207018480), Jun 30, 2022: PIN. DAMAGED. AIRCRAFT WAS NOT GROUNDED: 2R DOOR EMERGENCY EXIT SIGN DAMAGED. REPLACED 2R DOOR SLIDE ARMING LEVER PIN PER AMM 52-21-00.
- [SDR AALA202206202312](https://openairdocs.org/sdr/AALA202206202312), Jun 17, 2022: POWER SUPPLY. INOPERATIVE. AIRCRAFT WAS GROUNDED: ESCAPE PATH LIGHT INOPERATIVE AT SEAT ROWS 14, 15, 17, 18, 21, 22, 28, 29, 32 AND 34. MAINTENANCE FOUND NO POWER AT SIDEWALL CONNECTOR 72
- [SDR AALA202206209996](https://openairdocs.org/sdr/AALA202206209996), Jun 6, 2022: POWER SUPPLY. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED EMERGENCY LIGHT AT ROW 33 LEFT INOPERATIVE. **SUPPLEMENTAL REPORT: FOR AALA202206089996: MAINTENANCE FOUND NO POWER AT S
- [SDR AALA202206089996](https://openairdocs.org/sdr/AALA202206089996), Jun 6, 2022: NONE. NONE. AIRCRAFT WAS NOT GROUNDED: SEAT MOUNTED EMERGENCY LIGHT AT ROW 33 LEFT INOPERATIVE. **SUPPLEMENTAL REPORT WILL BE SUBMITTED** (OPEN)
- [SDR AALA202206077600](https://openairdocs.org/sdr/AALA202206077600), Jun 6, 2022: LIGHT. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: FORWARD CLOSET AISLE MOUNTED EMERGENCY LIGHT INOPERATIVE. REPLACED EMERGENCY LIGHT AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK 
- [SDR AALA202206072909](https://openairdocs.org/sdr/AALA202206072909), Jun 6, 2022: CONNECTOR. NOT SEATED. AIRCRAFT WAS NOT GROUNDED: SEAT ROW 28 CEILING EMERGENCY LIGHT INOPERATIVE. RE-SEATED CONNECTIONS AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 33-5
- [SDR AALA202206074604](https://openairdocs.org/sdr/AALA202206074604), Jun 4, 2022: COVER. DETACHED. AIRCRAFT WAS NOT GROUNDED: CAPTAINS ESCAPE ROPE COVER WONT STAY IN PLACE. RE ATTACHED CAPTAINS ESCAPE ROPE COVER AS REQUIRED.
- [SDR AALA202205195307](https://openairdocs.org/sdr/AALA202205195307), May 7, 2022: BELLOWS. LOOSE. AIRCRAFT WAS GROUNDED: FLIGHT ATTENDANTS REPORTED MUSTY/DIRTY SOCK SMELL THROUGHOUT CABIN WITH APU BLEED ON AND THEN WITH APU BLEED OFF DURING ENGINE START, CLI
- [SDR AALA202205105307](https://openairdocs.org/sdr/AALA202205105307), May 7, 2022: APU. ODOR. FLIGHT ATTENDANTS REPORTED MUSTY/DIRTY SOCK SMELL THROUGHOUT CABIN WITH APU BLEED ON AND THEN WITH APU BLEED OFF DURING ENGINE START ,CLIMB OUT AND DESCENT. MAI
- [SDR AALA202205048264](https://openairdocs.org/sdr/AALA202205048264), May 2, 2022: AIR FILTER. CONTAMINATED. AIRCRAFT WAS GROUNDED: STRONG DIRTY SOCKS SMELL DESCENDING THROUGH 8K. APU OFF/INOPERATIVE. SMELL DISSIPATED SOMEWHAT BELOW 4K. MAINTENANCE REPLACED THE CIRCULA
- [SDR AALA202205044006](https://openairdocs.org/sdr/AALA202205044006), May 1, 2022: COOLING FAN. LEAKING. AIRCRAFT WAS GROUNDED: DIRTY SOCK SMELL COMING THROUGH VENTS AFTER START, BRIEFLY AT CRUISE AND DURING APU BLEED USE AFTER SHUTDOWN. MAINTENANCE FOUND THE APU O
- [SDR AALA202202223821](https://openairdocs.org/sdr/AALA202202223821), Feb 19, 2022: PROXIMITY SWITCH. DEFECTIVE. AIRCRAFT WAS GROUNDED: SLIDE ARMED LIGHT DISAGREES WITH DOOR ARM STATUS. REPLACED L1 DOOR SLIDE ARM LEVER PROXIMITY SWITCH 4NW1 AND ACCOMPLISHED A SATISFACTORY 
- [SDR AALA202202159067](https://openairdocs.org/sdr/AALA202202159067), Feb 14, 2022: RELAY. INOPERATIVE. AIRCRAFT WAS NOT GROUNDED: DOOR 1L SHOWS ARMED WHEN SLIDE IS SELECTED DISARMED. REMOVED AND REPLACED RELAY 12WN PER FIM TASK 52-22-00 OPERATIONS CHECK GOOD PER 
- [SDR AALA202112164853](https://openairdocs.org/sdr/AALA202112164853), Dec 15, 2021: DOOR. BLOCKED. AIRCRAFT WAS NOT GROUNDED: AFT LEFT LAVATORY DOOR IS BLOCKED CLOSED BY THE TRASH CAN. ADJUSTED DOOR AS REQUIRED.
- [SDR AALA202112131899](https://openairdocs.org/sdr/AALA202112131899), Dec 12, 2021: DOOR. JAMMED. AIRCRAFT WAS NOT GROUNDED: MID LAVATORY DOOR JAMMED HALFWAY OPEN. REINSTALLED DOOR PER AMM 25-45-19.
- [SDR AALA202110191130](https://openairdocs.org/sdr/AALA202110191130), Oct 14, 2021: FLOOR PANEL. DELAMINATED. AIRCRAFT IN BASE MAINTENANCE: PASSENGER CABIN FLOOR PANEL 251AG DELAMINATED. REPLACED FLOOR PANEL PER SRM 53-02-00-300-011 AND IRM 9701.
- [SDR AALA202110185424](https://openairdocs.org/sdr/AALA202110185424), Oct 14, 2021: FLOOR PANEL. DELAMINATED. AIRCRAFT IN BASE MAINTENANCE: AFT PASSENGER CABIN FLOOR PANEL 251CF DELAMINATED. REPLACED FLOOR PANEL PER SRM 53-02-00-300-011 AND IRM 9701.
- [SDR AALA202110125171](https://openairdocs.org/sdr/AALA202110125171), Oct 9, 2021: FLOOR PANEL. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON FORWARD GALLEY AREA FLOOR PANEL 222EF DELAMINATED. REPLACED FLOOR PANEL PER
- [SDR AALA202110115258](https://openairdocs.org/sdr/AALA202110115258), Oct 8, 2021: NUT. LOOSE. AIRCRAFT IN BASE MAINTENANCE: LOOSE AFT ATTACH FITTING LUG PYLON TO WING UPPER ATTACHMENT NUT ON RIGHT PYLON. INSTALLED CORRECTLY NEW TAB WASHER AND NUT ATTACH 
- [SDR AALA202110068797](https://openairdocs.org/sdr/AALA202110068797), Oct 5, 2021: FLOOR PANEL. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON AFT CABIN FLOOR PANEL 261LG. REPLACED FLOOR PANEL PER TASK CARD 26C26053014.
- [SDR AALA202110044688](https://openairdocs.org/sdr/AALA202110044688), Oct 4, 2021: SEAT TRACK. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON SEAT TRACK BETWEEN FR 12 AND FR 24 AT -Y765. REPLACED SEAT TRACK PER SRM 51-72-11.
- [SDR AALA202110059856](https://openairdocs.org/sdr/AALA202110059856), Oct 2, 2021: FLOOR PANEL. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON FORWARD GALLEY AREA FLOOR PANEL 222FF. REPLACED FLOOR PANEL PER JOB CARD 26C22053014.
- [SDR AALA202110057276](https://openairdocs.org/sdr/AALA202110057276), Oct 2, 2021: FLOOR PANEL. CORRODED. AIRCRAFT IN BASE MAINTENANCE: CORROSION ON FORWARD GALLEY AREA FLOOR PANEL 221FF. REPLACED FLOOR PANEL PER JOB CARD 26C22053014.
- [SDR AALA202110048869](https://openairdocs.org/sdr/AALA202110048869), Oct 2, 2021: HINGE FITTING. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND STABILIZER # 1 ELEVATOR HINGE FITTING HAS EXCESSIVE PLAY. REPLACED HINGE FITTING PER 55-16-42-400-001-A.
- [SDR AALA202110040992](https://openairdocs.org/sdr/AALA202110040992), Oct 2, 2021: HINGE FITTING. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: LEFT HAND STABILIZER # 1 ELEVATOR HINGE FITTING HAS EXCESSIVE PLAY. REPLACED HINGE FITTING PER 55-16-42-400-001-A.
- [SDR AALA202110047400](https://openairdocs.org/sdr/AALA202110047400), Oct 2, 2021: HINGE FITTING. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND STABILIZER # 6 ELEVATOR HINGE FITTING HAS EXCESSIVE PLAY. REPLACED HINGE FITTING PER 55-16-42-400-001-A.
- [SDR AALA202110013037](https://openairdocs.org/sdr/AALA202110013037), Sep 30, 2021: FLOOR PANEL. DELAMINATED. AIRCRAFT IN BASE MAINTENANCE: PASSENGER CABIN FLOOR PANEL 252CG DELAMINATED. REPLACED FLOOR PANEL PER SRM 53-02-00-300-011 AND IRM 9701.
- [SDR AALA202110041566](https://openairdocs.org/sdr/AALA202110041566), Sep 29, 2021: HINGE ARM. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: RIGHT HAND ELEVATOR #3 HINGE ARM HAS EXCESSIVE PLAY ON THE RIGHT HAND HORIZONTAL STABILIZER. REPLACED HINGE ARM PER AMM 55-16-42-4
- [SDR AALA202109301891](https://openairdocs.org/sdr/AALA202109301891), Sep 29, 2021: HINGE ARM. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: EXCESSIVE PLAY HINGE ARM 4 ELEVATOR ON RIGHT HORIZONTAL STABILIZER (1 EA). REMOVED AND REPLACED ELEVATOR HINGE ARM NUMBER 4 ON RIG
- [SDR AALA202109303123](https://openairdocs.org/sdr/AALA202109303123), Sep 29, 2021: HINGE ARM. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: EXCESSIVE PLAY HINGE ARM 5 ELEVATOR ON RIGHT HORIZONTAL STABILIZER (1 EA). REMOVED AND REPLACED ELEVATOR HINGE ARM NUMBER 5 ON RIG
- [SDR AALA202109300339](https://openairdocs.org/sdr/AALA202109300339), Sep 29, 2021: HINGE ARM. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: EXCESSIVE PLAY HINGE ARM 2 ELEVATOR ON RIGHT HORIZONTAL STABILIZER (1 EA). REMOVED AND REPLACED ELEVATOR HINGE ARM NUMBER 2 ON RIG
- [SDR AALA202109302065](https://openairdocs.org/sdr/AALA202109302065), Sep 29, 2021: HINGE ARM. EXCESS PLAY. AIRCRAFT IN BASE MAINTENANCE: EXCESSIVE PLAY ELEVATOR HINGE ARM 6 ON LEFT HORIZONTAL STABILIZER (1 EA). REMOVED AND REPLACED ELEVATOR HINGE ARM 6 ON LEFT HORIZO

All 178: https://openairdocs.org/aircraft/N540UW/reports.md

## STCs that may be installed (OpenAirDocs) (217, 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 (Airbus A321-231)

- [STC ST03438NY](https://openairdocs.org/stc/ST03438NY): Installation of Adams Rite Lavatory Equipment. Delta Engineering Corporation
- [STC ST12434AC](https://openairdocs.org/stc/ST12434AC): Replacement of the wing fuel tank access panel gasket. Aviation Devices & Electronic Components, LLC
- [STC ST02714CH](https://openairdocs.org/stc/ST02714CH): Modify the aircraft interior to match standard passenger configurations. Atin OOH LLC
- [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 ST04493NY](https://openairdocs.org/stc/ST04493NY): Conversion of Passenger to Freighter configuration by installing a large Main Deck Cargo Door and Frame Shell Structure, Class "E" Cargo Compartment, Crew Entry Door and Surround Structure, Rigid Cargo Barrier, Floor reinforcements, and other associated modifications. ELBE Flugzeugwerke GmbH
- [STC ST02528LA](https://openairdocs.org/stc/ST02528LA): Installation of the Thales Avionics, Inc. Data Transfer Device (DTD) or Solid State Drive (SSD) into the existing Cabin Media Loader (CML). Thales Avionics Inc
- [STC ST02228SE](https://openairdocs.org/stc/ST02228SE): Installation of Bin NuLook. Safran Cabin, Inc
- [STC ST04474NY](https://openairdocs.org/stc/ST04474NY): Activation of Wireless Local Area Network (WLAN) system. Jet Aviation AG
- [STC ST04254NY](https://openairdocs.org/stc/ST04254NY): Installation of Viasat Satcom Software. ALOFT AeroArchitects
- [STC ST03416NY](https://openairdocs.org/stc/ST03416NY): Installation of Intelsat Connectivity Antenna (with demod option). Delta Engineering Corporation
- [STC ST02913NY](https://openairdocs.org/stc/ST02913NY): Installation of a Panasonic Avionics Corporation Global Communications Suite (GCS) and/or In-Flight Entertainment System. Delta Engineering Corporation
- [STC ST01700AT-D](https://openairdocs.org/stc/ST01700AT-D): Installation of Airshow 420 System. AIRCRAFT RECONFIG TECHNOLOGIES, LLC. Lists A321 Series
- [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 ST03741NY](https://openairdocs.org/stc/ST03741NY): Viasat KA SATCOM Antenna System Installation, approve configurations. ALOFT AeroArchitects
- [STC ST03742NY](https://openairdocs.org/stc/ST03742NY): Viasat KA Cabin Distribution System Installation. ALOFT AeroArchitects
- [STC ST00142NY](https://openairdocs.org/stc/ST00142NY): Cargo floorboard installation. American Airlines, Inc., Maintenance and Engineering (M&E) Division
- [STC ST02890NY](https://openairdocs.org/stc/ST02890NY): Installation of a Panasonic Avionics Corporation Global Communications Suite Antenna. Delta Engineering Corporation
- [STC ST04759NY](https://openairdocs.org/stc/ST04759NY): Installation of a single cockpit USB charger. Eirtech Aviation Services Inc
- [STC ST02356LA](https://openairdocs.org/stc/ST02356LA): Installation of Inflight Warning Systems Fan Vibration Monitor Unit. Astronics Advanced Electronic Systems (AES)
- [STC ST02699LA](https://openairdocs.org/stc/ST02699LA): Installation of Vogt Aero Nickel Cadmium Battery P/N 2758-LMVA or 2758-RMVA. Vogt Aero LLC
- [STC ST03189CH](https://openairdocs.org/stc/ST03189CH): Installation of an advertisement container on the bottom of a seat back tray table. Atin OOH LLC
- [STC ST04462CH](https://openairdocs.org/stc/ST04462CH): Installation of Row 44 Broadband Antenna System Provisions. Anuvu IFC Corporation
- [STC ST04528CH](https://openairdocs.org/stc/ST04528CH): Installation of a broadband wireless internet system in accordance with Row 44 Master Data Index Listing, Document No. RWO100-0003-00, Revision IR, dated May 26, 2021 or later FAA approved revision. Anuvu IFC Corporation
- [STC ST12229IB](https://openairdocs.org/stc/ST12229IB): Installation of Thinkom antenna on the top rear fuselage. EAD Aerospace Airworthiness T/A Eclipse Technics
- [STC ST04288CH](https://openairdocs.org/stc/ST04288CH): Installation of an Automatic Dependent Surveillance Broadcast Out (ADS-B Out) Transponder System with Honeywell Integrated Multi-Mode Receiver (IMMR), Model Number IMMR 20.1 installed with TSO-C190 compliant GPS antenna. Amphenol Cable and Interconnect Technologies Inc
- [STC ST00892LA](https://openairdocs.org/stc/ST00892LA): Installation of Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST04292CH](https://openairdocs.org/stc/ST04292CH): Installation of JADE SATCOM Antenna System Provisions. Amphenol Cable and Interconnect Technologies Inc
- [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 ST01818LA](https://openairdocs.org/stc/ST01818LA): Installation of Forward RH Stowage. Safran Cabin Inc
- [STC ST02561LA](https://openairdocs.org/stc/ST02561LA): C&D Zodiac, Inc. Interior Installations and Modifications per C&D Zodiac, Inc., Index List No. 945-1, Revision B, dated April 20, 2018, or later FAA approved revisions. Safran Cabin Inc
- [STC ST02735LA](https://openairdocs.org/stc/ST02735LA): Installation of modular lower deck Cargo Loading System (CLS). Telair International
- [STC ST03417NY](https://openairdocs.org/stc/ST03417NY): Installation with demod option of Intelsat Cabin Connectivity System. Delta Engineering Corporation
- [STC ST04089NY](https://openairdocs.org/stc/ST04089NY): Installation of Cabin Seating. Delta Engineering Corporation
- [STC ST04798NY](https://openairdocs.org/stc/ST04798NY): AAR Engineering Services Seat Re-pitch. Delta Engineering Corporation
- [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 ST02612CH](https://openairdocs.org/stc/ST02612CH): Installation of AD Aerospace Cockpit Door Monitoring System. Amphenol Cable and Interconnect Technologies, Inc
- [STC ST02626CH](https://openairdocs.org/stc/ST02626CH): Installation of ECS EZMount® mechanical mounting assemblies on lower frames of cockpit sliding windows. Amphenol Cable and Interconnect Technologies Inc
- [STC ST03176NY](https://openairdocs.org/stc/ST03176NY): Installation of a Gogo ATG4 system. Amphenol Cable and Interconnect Technologies Inc
- [STC ST04328CH](https://openairdocs.org/stc/ST04328CH): Installation and activation of the RAVE Wireless Broadband System. Amphenol Cable and Interconnect Technologies Inc
- [STC ST04334CH](https://openairdocs.org/stc/ST04334CH): Installation and activation of an ARINC 791 SATCOM System. Amphenol Cable and Interconnect Technologies Inc
- [STC ST04287CH](https://openairdocs.org/stc/ST04287CH): The Certification for Transmitting Portable Electronic Device (TPED). Amphenol Cable and Interconnect Technologies Inc
- [STC ST11885IB](https://openairdocs.org/stc/ST11885IB): Structure Reinforcement Common Design for ARINC 791 Large Antenna Installation. Sabena Technics BGC
- [STC ST11872IB](https://openairdocs.org/stc/ST11872IB): Installation of Iridium Antenna. Aerotec Concept
- [STC ST04010NY](https://openairdocs.org/stc/ST04010NY): Installation of Reticulated Polyurethane Foam (RPF) For Center Fuel Tank Ignition Mitigation. AerSale Inc
- [STC ST04470NY](https://openairdocs.org/stc/ST04470NY): Removal of Ka-band antenna and systems components. Lufthansa Technik AG
- [STC ST00079IB](https://openairdocs.org/stc/ST00079IB): Integration of Halon-free Portable Fire Extinguisher HAFEX. UMLAUT ENGINEERING GMBH
- [STC ST00215IB](https://openairdocs.org/stc/ST00215IB): Installation of saf-Tglo ECO Photoluminescent Aisle Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC
- [STC ST04351NY](https://openairdocs.org/stc/ST04351NY): Activation of Ka-Band Antenna. Lufthansa Technik AG

All 217: https://openairdocs.org/aircraft/N540UW/stcs.md

## Related

- Other Airbus A321-231 aircraft: https://openairdocs.org/model/airbus-a321-231/aircraft.md
- The IAE V2533-A5 engine: https://openairdocs.org/engine/iae-v2533-a5.md

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