# Hawker Siddeley HS125 SERIES 400A

- Type: Aircraft model (FAA registry)
- Registry code: 4230145
- Manufacturer (registry): HAWKER SIDDELEY
- Model: HS125 SERIES 400A
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 2 · Turbo-jet
- Seats: 14
- Weight class: 20,000 lb and over
- Certification: Type certificated
- Data sheet: [TCDS A3EU](https://openairdocs.org/tcds/A3EU) (OpenAirDocs)
- Holder: Textron Aviation Inc.
- Registered aircraft: 0
- Page: https://openairdocs.org/model/hawker-siddeley-hs125-series-400a

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 2026-13-02](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 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

## Information bulletins (advisory) (1)

- [SAIB NM-15-24](https://openairdocs.org/saib/NM-15-24): Landing Gear. Issued Sep 29, 2015

## Registered aircraft

None registered with this model now.

## NTSB investigations (1)

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 MIA95WA103](https://openairdocs.org/ntsb/MIA95WA103), Apr 7, 1995: Hawker Siddeley HS125 (N41953), Santo Domingo, Dominican Republic, substantial damage

## 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 19990102015369I](https://openairdocs.org/incident/19990102015369I), Jan 2, 1999: Beech 400A (N125CK), Detroit, MI, Minor damage. (-5) During landing, aircraft hit snow bank on runway. Flaps were extended both flaps and left aileron was damaged. No fire, no inuries.
- [Accident 19950407007309A](https://openairdocs.org/incident/19950407007309A), Apr 7, 1995: Hwksly HS125400F (N41953), Santo Domingo, DO, Substantial damage. Aircraft made hard landing.

## STCs that may be installed (OpenAirDocs) (16)

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 ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc
- [STC ST04177AT](https://openairdocs.org/stc/ST04177AT): Installation of a Talon Aerospace LED Replacement General Purpose Lamps. Aaxico Technical Services Inc
- [STC ST11071SC](https://openairdocs.org/stc/ST11071SC): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs). Liberty Partners Inc
- [STC ST01228WI](https://openairdocs.org/stc/ST01228WI): Replacement of OEM window pane assemblies with Lee Aerospace laminated window assembly and termination of OEM dry air system. Lee Aerospace, Inc
- [STC ST03776NY](https://openairdocs.org/stc/ST03776NY): Modification to upgrade existing Rockwell Collins TCAS (Model: TTR-920, TTR-921, and TTR-4000) at VERSION 7.0 to Rockwell Collins TCAS (Model: TTR-921, TTR-4000, and TTR-4100) at VERSION 7.1 (ACAS II). Scandinavian Avionics Design ApS
- [STC ST01809LA](https://openairdocs.org/stc/ST01809LA): Installation of Hawker PN 9750W0640 Sealed Lead Acid Battery. Securaplane Technologies
- [STC ST01623SE](https://openairdocs.org/stc/ST01623SE): Installation of Innovative Solutions and Support (IS&S) Air Data Display Units. AeroMech Incorporated
- [STC ST456CH-D](https://openairdocs.org/stc/ST456CH-D): Installation of AlliedSignal Aerospace TFE731-3D-1H or TFE731-3DR-1H Turbofan Engine(s). Honeywell International Inc
- [STC SA1185SO](https://openairdocs.org/stc/SA1185SO): Replace existing batteries with 2371, 2376 or 23491 nickel-cadmium batteries. Aviall Services, Inc
- [STC ST1003SO](https://openairdocs.org/stc/ST1003SO): Replace existing lead-acid batteries with Gill BB638/T1-E lead acid batteries, part numbers BSI 200 left and BSI 200 right. Aviall Services, Inc
- [STC SA858WE](https://openairdocs.org/stc/SA858WE): Environmental control system. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services. Lists 125 Series
- [STC SA860WE](https://openairdocs.org/stc/SA860WE): Installation of pressurization control system. GE Engine Services-Corporate Aviation Inc. DBA Garrett Aviation Services. Lists 125 Series
- [STC SA1184SO](https://openairdocs.org/stc/SA1184SO): Replace existing batteries with the SAFT 2371-5 series nickel- cadmium batteries. SAFT America Inc. Lists HS.125 Series
- [STC ST00069NY](https://openairdocs.org/stc/ST00069NY): Installation of Loral/Fairchild F1000 digital flight data recorder. Innotech Aviation. Lists HS.125 Series
- [STC SA36NW](https://openairdocs.org/stc/SA36NW): Installation of Sundstrand Ground Proximity Warning System. Sundstrand Data Control Inc

## PMA parts (OpenAirDocs) (485, 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.

- [S9413-008WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187096582920261009134009.0001): Packing, Preform - Fluorocarbon. Wencor, LLC · PMA PQ1370NM · Replaces S9413-008 · Oct 1, 2026
- [06655200-510](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID194002194720260910160117.0001): STARLINK AVIATION BLOCK 4 ANTENNA DATA LIST, PN 06655200-510. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06652310-531](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID188307572820260910160119.0001): COVER PLATE ASSEMBLY, STARLINK AVIATION. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06652360-501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID172071713320260910160119.0001): SPRAY SHIELD ASSEMBLY, XS, STARLINK AVIATION. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06655300-501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID171218446820260910160118.0001): STARLINK AVIATION BLOCK 5 ANTENNA DATA LIST, PN 06655300-501. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06652350-556](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID160866118420260910160118.0001): AVIATION TRAY ASSEMBLY, XXL LUGS, WIDE STANCE. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06658430-501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID151175068420260910160118.0001): MASTER DATA LIST – 06658430-501 – BLOCK 4 ROUTER – STARLINK AVIATION. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06652147-511](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149188950320260910160117.0001): STARLINK AVIATION HEAVY TRAY ASSEMBLY – DRAWING LIST, PN 06652147-511. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06651101-501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID144438279620260910160117.0001): STARLINK AVIATION AEROSHELL ASSEMBLY– DRAWING LIST, PN 06651101-501. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06652360-571](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125727911920260910160119.0001): PAGODA ASSEMBLY, STARLINK AVIATION. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [06658400-501](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108374520920260910160118.0001): MASTER DATA LIST–06658400-501 – BLOCK 4 PSU – STARLINK AVIATION. Space Exploration Technologies · PMA PQ00001WB · Modification part · Jul 22, 2026
- [3233190-2HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID180820506720250807175624.0001): Vespel Bearing. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 3233190-2 · Aug 4, 2025
- [207218HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166816467420250807185055.0001): Thrust Washer. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 207218 · Aug 4, 2025
- [D6-1HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159342963220250807175622.0001): Spring Washer. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces D6-1 · Aug 4, 2025
- [207460HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145152614120250805133123.0001): Bearing, Ball Annular. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 207460 · Aug 4, 2025
- [D6-4HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID139967508520250807175623.0001): Spring Washer. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces D6-4 · Aug 4, 2025
- [400-21149G-3-305, 400-21149G-3-315, 400-21149G-3-405, 400-21149G-3-415, 400-21149G-3-505, 400-21149G-3-515, 400-21149G-3-605, 400-21149G-3-615, 400-21149G-3-915](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID195387574620250603134043.0001): Assy, LRU Adapter (avRDC or MAX). Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [804-1250-10](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID192207126420250612143631.0001): avRDC QAR. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [804-1250-32](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID168158510420250612143635.0001): avRDC MAX QAR. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [650-0100-05](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163107069620250603134032.0001): Cellular Module, avCM LTE. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [802-0100-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159877857720250603134035.0001): Kit, avCM 4G Adapter. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [400-21149G-3-101, 400-21149G-3-103, 400-21149G-3-105, 400-21149G-3-111, 400-21149G-3-113, 400-21149G-3-115, 400-21149G-3-205, 400-21149G-3-215, 400-21149G-3-715, 400-21149G-3-815](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID148779431820250603134039.0001): Assy, LRU Adapter (miniQAR MKIII). Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [21149GK-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID145331540120250612143627.0001): Installation Kit, miniQAR / avRDC QAR. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [804-1201, 804-1205, 804-1205-03, 804-1212, 804-1216](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID138145552920250612143623.0001): miniQAR MKIII. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [650-0100-04](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID132354161620250603134028.0001): Cellular Module (avCM 4G), GSM / GRPS 4G, Quad Band, SMA. Avionica LLC. · PMA PQ1734CE · Modification part · Apr 18, 2025
- [AAP- 857760-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106046597820250228182136.0001): Seal, Plain, Encased. Approved Air Parts, LLC · PMA PQ4173NE · Replaces Honeywell P/N: 857760-1 · Feb 26, 2025
- [PM-80](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103072630120260625165812.0001): Radome Mask. PM Research, Inc. · PMA PQ10049NE · Modification part · Nov 20, 2024
- [447883LA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173382416820241107175411.0001): Valve, Safety Assy. LanAir Research and Development Inc · PMA PQ1031NE · Replaces 447883 · Nov 5, 2024
- [UAM100HEM](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID187388594720250310181523.0001): Fuse. Hemico Inc. · PMA PQ2145NE · Replaces UAM100 · Oct 18, 2024
- [HEM25WS619](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID115941443620250310183835.0001): Seal. Hemico Inc. · PMA PQ2145NE · Replaces 25WS619 · Oct 18, 2024
- [LA449039](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID164002865020241016174957.0001): Mask Lock. LanAir Research and Development Inc · PMA PQ1031NE · Replaces 449039 · Aug 28, 2024
- [LA01000X200A20B6](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121907769120241016174904.0001): O-Ring. LanAir Research and Development Inc · PMA PQ1031NE · Replaces R01000X200A20B6 · Aug 28, 2024
- [N1235XXXX](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163452491420240819142523.0001): Fluorescent Lamp. Aircraft Lighting International · PMA PQ2043NE · Replaces AL1235XXXX · Aug 6, 2024
- [PM-81](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID149816703220260702135221.0001): Radome Mask. PM Research, Inc. · PMA PQ10049NE · Modification part · Apr 11, 2024
- [AAI- 150SG1070](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID179599370820240320173350.0001): Friction Disc. Augusta Aero Innovations LLC · PMA PQ04441CE · Replaces 150SG1070 · Jan 31, 2024
- [3163811-7WE](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID174140440520240919140200.0001): Valve - Poppet. Wencor, LLC · PMA PQ1370NM · Replaces 3163811-7 · Jan 30, 2024
- [804-1216](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155583220320240924135410.0001): miniQAR MKIII. Avionica LLC. · PMA pq1734ce · Modification part · Dec 8, 2023
- [804-1216](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131636454920240924135410.0001): miniQAR MKIII. Avionica LLC. · PMA pq1734ce · Modification part · Dec 8, 2023
- [804-1216](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID103351406520240924135411.0001): miniQAR MKIII. Avionica LLC. · PMA pq1734ce · Modification part · Dec 8, 2023
- [AAP- 117088](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID107982464920230831200748.0001): Bearing. Approved Air Parts Co Inc · PMA PQ4173NE · Replaces Honeywell P/N 117088 · Aug 28, 2023
- [PA-200626-813](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID186511053720230426113841.0001): Installation Kit CSRS. Peregrine LLC · PMA PQ5257NM · Modification part · Apr 24, 2023
- [232-20426-1HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147115853820231024184810.0001): Bushing. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 232-20426-1 · Dec 22, 2022
- [45-12216-1HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID121229561820231024184826.0001): Bearing. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 45-12216-1 · Dec 22, 2022
- [232-20268-503HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID100164008620231024184824.0001): Bolt. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 232-20268-503 · Dec 22, 2022
- [M150SG1093-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID191755022420221215201434.0001): Wave Spring. Miraj Corporation · PMA PQ0870NE · Replaces 150SG1093-2 · Nov 28, 2022
- [M150SG1391](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID162614156720221215201437.0001): Spring Seat Nut. Miraj Corporation · PMA PQ0870NE · Replaces 150SG1391 · Nov 28, 2022
- [BCN400SG-K1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID165328117920221025141607.0001): Overhaul Hardware Kit 400SG Series Starter Generators. BCN Aerospace, Inc. · PMA PQ2149NE · Replaces NJ400SG-K1 · Oct 14, 2022
- [2101818-1         Series 3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185769311020230803184250.0001): Adapter Cable, Synchronizer- 4 Branch. Honeywell International Inc. · PMA PQ1222NM · Replaces 2101818-1 · Oct 5, 2022
- [2101818-1         Series 2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163174573520230803184249.0001): Adapter Cable, Synchronizer- 4 Branch. Honeywell International Inc. · PMA PQ1222NM · Replaces 2101818-1 · Oct 5, 2022
- [2101402-2 Series 3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID156782284220230803184247.0001): Synchronizer/EMI Filter Engine Speed. Honeywell International Inc. · PMA PQ1222NM · Replaces 2101402-2 · Oct 5, 2022

All of them: https://openairdocs.org/model/hawker-siddeley-hs125-series-400a/pma.md

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