# Airbus A321-251N

- Type: Aircraft model (FAA registry)
- Registry code: 3940041
- Manufacturer (registry): AIRBUS
- Model: A321-251N
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 2 · Turbo-fan
- Seats: 222
- Weight class: 20,000 lb and over
- Certification: Type certificated
- Data sheet: [TCDS A28NM](https://openairdocs.org/tcds/A28NM) (OpenAirDocs)
- Holder: Airbus SAS
- Registered aircraft: 0
- Page: https://openairdocs.org/model/airbus-a321-251n

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 2026-17-04](https://openairdocs.org/ad/2026-17-04): Landing Gear · Airbus A318-111, A318-112, A318-121 and 46 more. Effective Oct 1, 2026
- [AD 2026-15-13](https://openairdocs.org/ad/2026-15-13): Pneumatic · Airbus A319-151N, A319-153N, A319-171N and 19 more. Effective Sep 2, 2026
- [AD 2026-14-05](https://openairdocs.org/ad/2026-14-05): Communications · Airbus A319-151N, A319-153N, A319-171N and 19 more. Effective Aug 14, 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 2026-10-15](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 2025-24-51](https://openairdocs.org/ad/2025-24-51): Flight controls · Airbus A319-111, A319-112, A319-113 and 37 more. Effective Jan 6, 2026
- [AD 2025-20-15](https://openairdocs.org/ad/2025-20-15): Fuselage · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jan 2, 2026
- [AD 2025-18-03](https://openairdocs.org/ad/2025-18-03): Oxygen · Airbus A318-111, A318-112, A318-121 and 70 more. Effective Oct 20, 2025
- [AD 2025-16-10](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 2025-02-04](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 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 2024-11-01](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 2023-25-05](https://openairdocs.org/ad/2023-25-05): Landing Gear, Electrical System Installation · Airbus A319-151N, A319-153N, A319-171N and 16 more. Effective Feb 7, 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 2023-10-07](https://openairdocs.org/ad/2023-10-07): Fuel · Airbus A319-151N, A319-153N, A319-171N and 16 more. Effective Nov 9, 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 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023
- [AD 2022-24-14](https://openairdocs.org/ad/2022-24-14): Auto Flight · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Jan 18, 2023
- [AD 2020-25-03 R1](https://openairdocs.org/ad/2020-25-03-R1): Equipment/furnishings · Airbus A318-111, A318-112, A318-121 and 42 more. Effective Jan 12, 2023
- [AD 2022-24-03](https://openairdocs.org/ad/2022-24-03): Powerplant · Airbus A321-251N, A321-251NX, A321-252N and 3 more. Effective Jan 9, 2023
- [AD 2022-22-11](https://openairdocs.org/ad/2022-22-11): Flight Control System, Navigation · Airbus A319-151N, A319-153N, A319-171N and 16 more. Effective Dec 30, 2022
- [AD 2022-19-10](https://openairdocs.org/ad/2022-19-10): Equipment/furnishings · Airbus A321-251N, A321-251NX, A321-252NX and 3 more. Effective Oct 19, 2022
- [AD 2022-18-05](https://openairdocs.org/ad/2022-18-05): Equipment/furnishings · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Oct 13, 2022
- [AD 2022-20-06](https://openairdocs.org/ad/2022-20-06): Ice and rain protection, Pneumatic · Airbus A320-251N, A320-253N, A320-271N and 4 more. Effective Oct 7, 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 2022-04-08](https://openairdocs.org/ad/2022-04-08): Fire protection, Doors · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Apr 11, 2022
- [AD 2021-22-07](https://openairdocs.org/ad/2021-22-07): Fire Bottle, Portable · Airbus A319-111, A319-112, A319-113 and 127 more. Effective Nov 18, 2021
- [AD 2021-18-04](https://openairdocs.org/ad/2021-18-04): Fire protection, Doors · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Oct 20, 2021
- [AD 2021-11-06](https://openairdocs.org/ad/2021-11-06): Windows · Airbus A318-111, A318-112, A318-121 and 43 more. Effective Jun 4, 2021

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 2025-16-12](https://openairdocs.org/ad/2025-16-12) (historical): Pneumatic · Airbus A319-151N, A319-153N, A319-171N and 19 more. Effective Aug 29, 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 2025-11-02](https://openairdocs.org/ad/2025-11-02) (historical): Communications · Airbus A319-151N, A319-153N, A319-171N and 18 more. Effective Jun 11, 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 2022-09-16](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 2022-07-08](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 2022-04-09](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 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 2021-14-08](https://openairdocs.org/ad/2021-14-08) (historical): Navigation · Airbus A319-151N, A319-153N, A319-171N and 16 more. Effective Jul 1, 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 2020-12-11](https://openairdocs.org/ad/2020-12-11) (historical): Auto Flight · Airbus A319-111, A319-112, A319-113 and 20 more. Effective Jul 24, 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 2019-23-01](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 2019-20-03](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 2019-14-04](https://openairdocs.org/ad/2019-14-04) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 37 more. Effective Aug 29, 2019
- [AD 2019-03-17](https://openairdocs.org/ad/2019-03-17) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 36 more. Effective Apr 3, 2019
- [AD 2018-25-02](https://openairdocs.org/ad/2018-25-02) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 30 more. Effective Jan 10, 2019
- [AD 2018-17-19](https://openairdocs.org/ad/2018-17-19) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 29 more. Effective Oct 5, 2018
- [AD 2018-16-04](https://openairdocs.org/ad/2018-16-04) (historical): Time Limits/Maintenance Checks · Airbus A318-111, A318-112, A318-121 and 29 more. Effective Sep 14, 2018

All 113: https://openairdocs.org/model/airbus-a321-251n/ads.md

## Information bulletins (advisory) (1)

- [SAIB NE-19-03](https://openairdocs.org/saib/NE-19-03): Escape Slide Maintenance Tasks and Intervals - JASC 2565. Issued Feb 19, 2019

## Registered aircraft

None registered with this model now.

## NTSB investigations

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## STCs that may be installed (OpenAirDocs) (103, 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 ST12434AC](https://openairdocs.org/stc/ST12434AC): Replacement of the wing fuel tank access panel gasket. Aviation Devices & Electronic Components, 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 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 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 ST03741NY](https://openairdocs.org/stc/ST03741NY): Viasat KA SATCOM Antenna System Installation, approve configurations. ALOFT AeroArchitects
- [STC ST12326SE](https://openairdocs.org/stc/ST12326SE): SpaceX Starlink Aviation System Installation and Activation. Space Exploration Technologies Corp./Starlink Aviation
- [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 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 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 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 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 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 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 ST02716SE](https://openairdocs.org/stc/ST02716SE): Conversion of an Airbus A321-200 passenger configuration airplane to a freighter configuration. 321 Precision Conversions LLC
- [STC ST04071NY](https://openairdocs.org/stc/ST04071NY): Installation of VisionSafe Emergency Vision Assurance System (EVAS). VisionSafe LLC
- [STC ST02814CH](https://openairdocs.org/stc/ST02814CH): Installation of Rosemount Aerospace Electronic Flight Bag (EFB) System and Provisions. Rosemount Aerospace Inc
- [STC ST09939AC](https://openairdocs.org/stc/ST09939AC): Installation of the Spacex Starlink Aviation Satcom System. Space Exploration Technologies Corp./Starlink Aviation
- [STC ST04577AT](https://openairdocs.org/stc/ST04577AT): Installation of the ARTEX 4000 Emergency Locator Transmitter (ELT) System. Woven Electronics LLC
- [STC ST04623CH](https://openairdocs.org/stc/ST04623CH): Installation of Flight Deck Power System. Rosemount Aerospace Inc
- [STC ST00126IB](https://openairdocs.org/stc/ST00126IB): Replacement of Halon agent with alternate Halon-free Portable Fire Extinguisher agent. AMAC Aerospace Switzerland AG
- [STC ST02267NY](https://openairdocs.org/stc/ST02267NY): Installation of Self Illuminating Floor Path Marking System. Lufthansa Technik AG
- [STC ST04562NY](https://openairdocs.org/stc/ST04562NY): Installation of saf-Tglo® SuperSeal UltraLite-X (SSUL-X) Photoluminescent Floor Proximity Emergency Escape Path Marking Systems. STG AEROSPACE GERMANY GmbH
- [STC ST00105IB](https://openairdocs.org/stc/ST00105IB): Introduction of Activation of Wireless Charging Systems for Portable Electronic Devices. AMAC AEROSPACE SWITZERLAND AG
- [STC ST00898DE](https://openairdocs.org/stc/ST00898DE): Installation of Glide Lite In-Flight Entertainment System. Burrana Inc
- [STC ST00098IB](https://openairdocs.org/stc/ST00098IB): Introduction of ADS-B Out. STC Twenty One Limited
- [STC ST03194NY](https://openairdocs.org/stc/ST03194NY): Update of a Gogo ATG4 system. Delta Engineering Corporation
- [STC ST01797CH](https://openairdocs.org/stc/ST01797CH): Installation of a Honeywell RESCU 406AF Emergency Locator Transmitter (ELT) System. Honeywell International Inc
- [STC ST04336CH](https://openairdocs.org/stc/ST04336CH): Installation of Honeywell Enhanced Ground Proximity Warning Computer (EGPWC) Upgrade and Runway Awareness and Advisory System (RAAS) Activation. Honeywell International Inc
- [STC ST00055IB](https://openairdocs.org/stc/ST00055IB): Installation of Eastern Aero Marine (EAM) Model ES-320F escape slide. Lufthansa Technik AG

All 103: https://openairdocs.org/model/airbus-a321-251n/stcs.md

## PMA parts (OpenAirDocs) (over 1,000, first 50)

Current parts manufacturer approvals (PMA): parts the FAA has approved companies to make as replacements or modifications. Each record lists its models as free text; OpenAirDocs matched them to this model on its data sheet, so check the FAA record before relying on it. Newest first.

- [2805489-9JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140129402620261008134016.0001): Housing Assy, Scroll. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2805489-9 · Oct 6, 2026
- [2805489-4JA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID112357561820261008134015.0001): Housing Assy, Scroll. Jet Avion Corporation A HEICO Aerospace Company · PMA PQ1015CE · Replaces 2805489-4 · Oct 6, 2026
- [2710202-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID198521421020261009133946.0001): Key, Locking. Wencor, LLC · PMA PQ1370NM · Replaces 2710202-1 · Oct 1, 2026
- [730832WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192250565920261009133952.0001): Insulator, Terminal. Wencor, LLC · PMA PQ1370NM · Replaces 730832 · Oct 1, 2026
- [5910982-1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188491102920261009133949.0001): Nut-Self-Locking. Wencor, LLC · PMA PQ1370NM · Replaces 5910982-1 · Oct 1, 2026
- [768241G5WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID183050418020261009134001.0001): Piston And Slipper Assembly. Wencor, LLC · PMA PQ1370NM · Replaces 768241G5 · Oct 1, 2026
- [768241G4WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID170890910020261009134000.0001): Piston And Slipper Assembly. Wencor, LLC · PMA PQ1370NM · Replaces 768241G4 · Oct 1, 2026
- [768241G3WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID167217551420261009134000.0001): Piston And Slipper Assembly. Wencor, LLC · PMA PQ1370NM · Replaces 768241G3 · Oct 1, 2026
- [3415-102PWE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142843443220261009133947.0001): Ring, Retaining. Wencor, LLC · PMA PQ1370NM · Replaces 3415-102P · Oct 1, 2026
- [768241G1WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID127064908120261009133959.0001): Piston And Slipper Assembly. Wencor, LLC · PMA PQ1370NM · Replaces 768241G1 · Oct 1, 2026
- [690775-12WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120781077820261009133950.0001): Insert, Screw Thread. Wencor, LLC · PMA PQ1370NM · Replaces 690775-12 · Oct 1, 2026
- [768241G2WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105981404820261009133959.0001): Piston And Slipper Assembly. Wencor, LLC · PMA PQ1370NM · Replaces 768241G2 · Oct 1, 2026
- [P01733](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185682764420260923165606.0001): Segmented Seal. Aviation Component Solutions · PMA PQ2685CE · Replaces A3W1173‑01 · Sep 11, 2026
- [AR90128-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID140492078220260909151856.0001): Water HeaterAssembly. Adams Rite Aerospace Inc · PMA PQ1155NM · Replaces ModificationArticle · Aug 12, 2026
- [9143FR](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID175949486320260909220943.0001): Corrosion Prevention Sealing Tape. 3M Aerospace · PMA PQ04414CE · Modification part · Jul 7, 2026
- [9143FR-0100](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID152861273020260909220943.0001): Corrosion Prevention Sealing Tape. 3M Aerospace · PMA PQ04414CE · Modification part · Jul 7, 2026
- [9143FR-0325](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131311693520260909220944.0001): Corrosion Prevention Sealing Tape. 3M Aerospace · PMA PQ04414CE · Modification part · Jul 7, 2026
- [9143FR-0200](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID114706953320260909220943.0001): Corrosion Prevention Sealing Tape. 3M Aerospace · PMA PQ04414CE · Modification part · Jul 7, 2026
- [9143FR-0315](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID101461286820260909220943.0001): Corrosion Prevention Sealing Tape. 3M Aerospace · PMA PQ04414CE · Modification part · Jul 7, 2026
- [PS62007218-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID196042865620260630220951.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007218-901 · Jun 25, 2026
- [PS62007223-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID189395427220260630220952.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007223-901 · Jun 25, 2026
- [PS62007217-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186933847920260630220950.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007217-901 · Jun 25, 2026
- [PS62007229-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184938709720260630220951.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007229-901 · Jun 25, 2026
- [PS62007216-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID184897328020260630220950.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007216-901 · Jun 25, 2026
- [PS62007210-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149175538920260630220951.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007210-901 · Jun 25, 2026
- [PS62007224-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116757741220260630220951.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007224-901 · Jun 25, 2026
- [PS62007161-901](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110803848420260630220950.0001): SOFTWARE-FMS OPTION CONFIGURATION. Honeywell Aerospace US LLC · PMA PQ1354NM · Replaces PS62007161-901 · Jun 25, 2026
- [5909181-3MIT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191108483920260705233644.0001): Seal – Radial. Mitchell PMA, LLC · PMA PQ00057EB · Replaces Sundstrand5909181-3,5909181-1 · Jun 18, 2026
- [SP20523](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171024030520260528134001.0001): Rate Control. ITT Enidine Inc. · PMA PQ0832NE · Replaces SP20523 · May 27, 2026
- [PDMD7122010420000](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161095724920260705233129.0001): Pin. PMA Design & Manufacturing · PMA PQ1570CE · Replaces D7122010420000 · May 15, 2026
- [PDMD7122006420000](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID154766280420260705233145.0001): Washer. PMA Design & Manufacturing · PMA PQ1570CE · Replaces D7122006420000 · May 15, 2026
- [AF300P](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185759106320260717175324.0001): Repair Kit. AkroFire, Inc. · PMA PQ3730CE · Modification part · May 11, 2026
- [AR4714-13](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID150163108820260519134947.0001): Strike Assy Electrically Operated. Adams Rite Aerospace Inc · PMA PQ1155NM · Replaces AR4714-13 · May 11, 2026
- [AF302](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID123755079120260717175326.0001): Repair Kit. AkroFire, Inc. · PMA PQ3730CE · Modification part · May 11, 2026
- [AR4714-15](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID105410777220260519134948.0001): Strike Assy Electrically Operated. Adams Rite Aerospace Inc · PMA PQ1155NM · Replaces AR4714-15 · May 11, 2026
- [2805419-1MIT](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137879992220260722151825.0001): Impeller. Mitchell PMA, LLC · PMA PQ04379CE · Replaces 2805419-1 · May 6, 2026
- [742795WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174101260720260508163513.0001): Vane-Pump. Wencor LLC · PMA PQ1370NM · Replaces 742795 · Apr 30, 2026
- [9087A0003-02SD](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134469268320260423171243.0001): Muffle. Seal Dynamics Inc · PMA PQ1715CE · Replaces 9087A0003-02 · Apr 22, 2026
- [EAI-4011-990-AB](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199577828420260513134926.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12180-990 · Apr 21, 2026
- [EAI-4012-990R-AB](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147592556420260513134928.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12156-990 · Apr 21, 2026
- [EAI-4012-990L-AB](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145736011820260513134927.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12155-990 · Apr 21, 2026
- [EAI-4012-990L-AB-Y](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID136784192320260513134927.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12155-990 · Apr 21, 2026
- [EAI-4011-990-AB-Y](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124993905220260513134927.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12180-990 · Apr 21, 2026
- [EAI-4012-990R-AB-Y](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106956748420260513134928.0001): Roller Shade Assembly. Erie Aviation Inc. · PMA PQ10010NE · Replaces 170-12156-990 · Apr 21, 2026
- [307X](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147905407520260423171755.0001): 28V Ba15s SINGLECONTACT LED BULB. Aircraft Lighting International · PMA PQ2043NE · Replaces 307, 2232, 2232SB, 2233, MS35478-307 · Apr 15, 2026
- [14401-029SMI](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151710749220260423171406.0001): Filter. Source Manufacturing Inc · PMA PQ1549CE · Replaces 14401-029 · Mar 25, 2026
- [A19-97-038-01](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166240629120260309180534.0001): SLTA 1 INBOARD AFTBLOCK. Airborne Maintenance & Engineering Services · PMA PQ2732CE · Replaces A19-97-038-01 · Mar 5, 2026
- [A19-97-038-03](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID124681547520260309180534.0001): SLTA  OUTBOARD AFTBLOCK. Airborne Maintenance & Engineering Services · PMA PQ2732CE · Replaces A19-97-038-03 · Mar 5, 2026
- [HNP54-AM15-2008](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID182487600620260508164331.0001): MEDIA-FM OPTION CONFIGURATION. Honeywell International US LLC · PMA PQ1354NM · Replaces HNP54-AM15-2008 · Feb 9, 2026
- [1298661-035HZG](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID199170220820260224200234.0001): CVR-BK-HR VID 17.80. Torrington Distributors Inc. · PMA PQ2067NE · Replaces 1298661-035HZG · Feb 6, 2026

All of them: https://openairdocs.org/model/airbus-a321-251n/pma.md

---
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.
