# Beechcraft-Hawker BH-125-400A

- Type: Aircraft model (FAA registry)
- Registry code: 4210112
- Manufacturer (registry): BEECHCRAFT-HAWKER CORP.
- Model: BH-125-400A
- Aircraft type: Fixed wing multi engine
- Category: Airplane
- Engines: 2 · Turbo-jet
- Seats: 11
- Weight class: 20,000 lb and over
- Cruise speed: 381 mph
- 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/beechcraft-hawker-bh-125-400a

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
- [AD 2011-01-09](https://openairdocs.org/ad/2011-01-09): Oxygen · Airbus A300 B2-1A, A300 B2-1C, A300 B2-203 and 290 more. Effective Feb 9, 2011
- [AD 2006-01-04](https://openairdocs.org/ad/2006-01-04): Fan venturi motor casing · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 42 more. Effective Feb 22, 2006
- [AD 2005-03-16](https://openairdocs.org/ad/2005-03-16): Engine compartment firewall · Textron BAe.125 Series 800A, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125) and 40 more. Effective Mar 21, 2005
- [AD 2003-07-07](https://openairdocs.org/ad/2003-07-07): Tie-bolt Nuts of Main Landing Gear (MLG) Wheels · Textron BAe.125 Series 800A, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125) and 31 more. Effective May 8, 2003
- [AD 2003-04-20](https://openairdocs.org/ad/2003-04-20): Cylinder Head Lugs of Main Landing Gear (MLG) Actuator · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 43 more. Effective Apr 4, 2003
- [AD 2000-22-03](https://openairdocs.org/ad/2000-22-03): Pitot/Static and Stall Vent Drain Valves · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 43 more. Effective Dec 4, 2000
- [AD 2000-21-11](https://openairdocs.org/ad/2000-21-11): Cockpit Canopy Blister Interface · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 33 more. Effective Nov 29, 2000
- [AD 2000-02-35](https://openairdocs.org/ad/2000-02-35): Oxygen System Plumbing · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 36 more. Effective Mar 13, 2000
- [AD 89-18-07 R1](https://openairdocs.org/ad/89-18-07-R1): Elevator Balance Spigot · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 34 more. Effective Dec 18, 1998
- [AD 97-21-05](https://openairdocs.org/ad/97-21-05): High Pressure Oxygen Hose Assemblies · Textron BAe.125 Series 800A, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125) and 8 more. Effective Nov 24, 1997
- [AD 97-03-07](https://openairdocs.org/ad/97-03-07): Main Landing Gear Sidestay Assemblies · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 42 more. Effective Mar 11, 1997
- [AD 95-08-06](https://openairdocs.org/ad/95-08-06): Static Inverter · Textron BAe.125 Series 800A, BH.125 Series 400A, BH.125 Series 600A and 29 more. Effective May 18, 1995
- [AD 93-24-08](https://openairdocs.org/ad/93-24-08): Engine Fire Extinguisher Systems · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Jan 18, 1994
- [AD 93-23-08](https://openairdocs.org/ad/93-23-08): Battery and Emergency Contactors · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Dec 29, 1993
- [AD 93-02-10](https://openairdocs.org/ad/93-02-10): Battery Cables · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 39 more. Effective Mar 26, 1993
- [AD 92-27-09](https://openairdocs.org/ad/92-27-09): Mail Landing Gear Sidestay Upper Arm Assembly · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Jan 27, 1993
- [AD 92-25-11](https://openairdocs.org/ad/92-25-11): Hydraulic Accumulator · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Jan 12, 1993
- [AD 92-22-04](https://openairdocs.org/ad/92-22-04): In-Flight Fire Hazard · Textron BH.125 Series 400A, DH.125 Series 1A, DH.125 Series 1A-522 and 6 more. Effective Nov 24, 1992
- [AD 92-16-12 R1](https://openairdocs.org/ad/92-16-12-R1): Tail Cone Vents · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Sep 28, 1992
- [AD 92-11-03](https://openairdocs.org/ad/92-11-03): Eddy Current Inspection · Textron BH.125 Series 400A, DH.125 Series 1A, DH.125 Series 1A-522 and 6 more. Effective Jul 9, 1992
- [AD 92-10-04](https://openairdocs.org/ad/92-10-04): Wing Skin Corrosion · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 8 more. Effective Jun 11, 1992
- [AD 92-06-05 R1](https://openairdocs.org/ad/92-06-05-R1): Nose Landing Gear · Textron BAe.125 Series 1000B, BAe.125 Series 800A, BAe.125 Series 800A (C-29A) and 38 more. Effective Apr 21, 1992
- [AD 91-19-05](https://openairdocs.org/ad/91-19-05): Fire Extinguisher System Wiring · Textron BAe.125 Series 800A, BH.125 Series 400A, BH.125 Series 600A and 34 more. Effective Sep 26, 1991
- [AD 91-07-12](https://openairdocs.org/ad/91-07-12): Main Landing Gear Hinge Fittings · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Apr 29, 1991
- [AD 91-03-18](https://openairdocs.org/ad/91-03-18): Warming Ovens · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 39 more. Effective Mar 11, 1991
- [AD 91-03-06](https://openairdocs.org/ad/91-03-06): Generator Control Unit · Textron BAe.125 Series 800A, BAe.125 Series 800A (C-29A), BAe.125 Series 800A (U-125) and 36 more. Effective Feb 11, 1991
- [AD 90-03-06](https://openairdocs.org/ad/90-03-06): Corrosion Inspection · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 39 more. Effective Feb 20, 1990
- [AD 89-18-13](https://openairdocs.org/ad/89-18-13): AFM Changes - APU · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 39 more. Effective Sep 28, 1989
- [AD 89-17-06](https://openairdocs.org/ad/89-17-06): Electrical Components · Textron BAe.125 Series 1000A, BAe.125 Series 1000B, BAe.125 Series 800A and 39 more. Effective Sep 15, 1989
- [AD 88-05-02](https://openairdocs.org/ad/88-05-02): Airplane Structure · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Apr 6, 1988
- [AD 87-04-14](https://openairdocs.org/ad/87-04-14): Starter/Generator · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Mar 9, 1987
- [AD 86-21-05](https://openairdocs.org/ad/86-21-05): Forward Engine Mounts · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Oct 20, 1986
- [AD 82-12-02 R1](https://openairdocs.org/ad/82-12-02-R1): Flap Structure · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Jun 17, 1985
- [AD 85-07-08](https://openairdocs.org/ad/85-07-08): Audio Communication System · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective May 13, 1985
- [AD 84-21-01 R1](https://openairdocs.org/ad/84-21-01-R1): Replacement Fuses - ZL Panel · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Feb 11, 1985
- [AD 84-20-05](https://openairdocs.org/ad/84-20-05): Landing Gear and Brakes · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Oct 14, 1984
- [AD 77-13-09 R1](https://openairdocs.org/ad/77-13-09-R1): Structural Integrity of Bulkhead · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 7 more. Effective Jun 1, 1984
- [AD 80-12-05 R2](https://openairdocs.org/ad/80-12-05-R2): Nose Landing Gear Drag Stay Assembly · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Mar 16, 1983
- [AD 80-12-10 R1](https://openairdocs.org/ad/80-12-10-R1): Flap Fittings · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Jan 3, 1983
- [AD 82-12-03](https://openairdocs.org/ad/82-12-03): Ampere Airfuse Installation · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 8 more. Effective Jun 8, 1982
- [AD 82-12-01](https://openairdocs.org/ad/82-12-01): Main Landing Gear Restrictor Valves · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Jun 8, 1982
- [AD 81-06-06](https://openairdocs.org/ad/81-06-06): Fuel Feed Lines · Garrett AiResearch TFE-731-3-1H engines (AlliedSignal Aviation Services STC SA3870WE). Effective Mar 26, 1981
- [AD 80-12-13](https://openairdocs.org/ad/80-12-13): Engine Mount Beam · BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Jul 14, 1980
- [AD 73-13-10 R2](https://openairdocs.org/ad/73-13-10-R2): Outer Flap Hinge Fittings · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 7 more. Effective Jun 23, 1980
- [AD 78-07-07](https://openairdocs.org/ad/78-07-07): Lightning Strike Damage to Radome · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective May 3, 1978
- [AD 78-01-06](https://openairdocs.org/ad/78-01-06): Elevator Control Pulley Bracket · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 9 more. Effective Jan 12, 1978
- [AD 77-26-01](https://openairdocs.org/ad/77-26-01): Oxygen Supply · Textron BH.125 Series 400A, DH.125 Series 1A, DH.125 Series 1A-522 and 6 more. Effective Jan 3, 1978
- [AD 77-13-11](https://openairdocs.org/ad/77-13-11): Emergency Brake Control Valve · Textron BH.125 Series 400A, BH.125 Series 600A, DH.125 Series 1A and 7 more. Effective Jul 25, 1977

All 59: https://openairdocs.org/model/beechcraft-hawker-bh-125-400a/ads.md

## 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

None matched to aircraft with this model.

## FAA accident and incident reports

None matched to aircraft with this model.

## Service difficulty reports (22)

As reported by operators and repair stations, by the model named in the report.

- [SDR CA110315014](https://openairdocs.org/sdr/CA110315014), Mar 15, 2011: HINGE FITTING. CRACKED. (CAN) DURING ACCOMPLISHMENT OF AD 80-12-10 R1/SB 57-55 THE LEFT OUTBOARD HINGE UPPER LUG WAS FOUND TO BE CRACKED.
- [SDR ET72009F00000](https://openairdocs.org/sdr/ET72009F00000), May 16, 2009: CABIN PRESSURE. FAILED. APPROX 8-10 MINUTES INTO FLIGHT, HEARD A LOUD "POP" COME FROM THE REAR OF THE ACFT. FELT DISCOMFORT IN OUR EARS, LOOKED AT THE PRESSURIZATION GUAGES AND NOTICED
- [SDR DXTA200810173310](https://openairdocs.org/sdr/DXTA200810173310), Oct 17, 2008: CONTROLLER. INOPERATIVE. AT 14000' AND AT 280 KTS WITH AP/FD SELECTED TO LEFT SIDE, RIGHT SIDE ONLY AP PITCH TRIM FAIL LIGHT CAME ON. DISENGAGED AP, NO TRIMMING WAS REQUIRED, AND LIGHT 
- [SDR 2006FA0000082](https://openairdocs.org/sdr/2006FA0000082), Jan 9, 2006: SWITCH. PILOT ERROR. PILOT MISTAKENLY TRIPPED THE APU FIRE EXTINGUISHER SWITCH INSTEAD OF THE APU START SWITCH. BOTH SWITCHES ARE OF THE SAME STYLE, ARE LOCATED CLOSE TOGETHER AND B
- [SDR BTA2004F00001](https://openairdocs.org/sdr/BTA2004F00001), Mar 28, 2004: CONTROL VALVE. INCORRECT. REJECTED TAKEOFF, UNUSUAL BLEED AIR NOISE IN COCKPIT WHEN THROTTLES WERE ADVANCED FOR TAKE-OFF. TAKE-OFF ABORTED BEFORE 60 KNOTS, DISCOVERED COCKPIT WINDOW DEMI
- [SDR 20010517CW008](https://openairdocs.org/sdr/20010517CW008), Feb 21, 2001: APU. MALFUNCTIONED. INTERRUPTION TO A FLIGHT, UPON ARRIVAL , START ATTEMPT OF APU AFTER FIRST ATTEMPT FAILED TO LIGHT, CAUSED A FIRE IN EXHAUST PIPE. APU FIRE BOTTLE WAS EXPENDED, 
- [SDR 99ZZZX1167](https://openairdocs.org/sdr/99ZZZX1167), Feb 22, 1999: PUMP. FAILED. ON FLIGHT FROM CAE TO SDL, AIRCRAFT INSTRUMENTS INDICATED THE RIGHT-HAND HYDRAULIC PUMP FAILED. THE CREW LANDED AT LIT AND INSPECTED RIGHT ENGINE. HYDRAULIC FLU
- [SDR 98ZZZX4010](https://openairdocs.org/sdr/98ZZZX4010), Sep 21, 1998: COOLING TURBINE. FAILED. AIRCRAFT TOTAL TIME 6,992.5 HOURS. AIRCRAFT WAS IN CLIMB TO 10,000 FEET WHEN VIBRATIONS AND ODOR WERE NOTICED IN COCKPIT AND CABIN. RETURNED TO AIRPORT AND FOUN
- [SDR 98ZZZX3451](https://openairdocs.org/sdr/98ZZZX3451), Aug 25, 1998: VALVE. FAILED. AFTER APPROXIMATELY 2 HOURS OF CRUISE FLIGHT, AUXILIARY HEAT WAS SELECTED TO WARM COCKPIT. AFTER SYSTEM WAS TURNED ON FOR APPROXIMATELY 3 SECONDS, SMOKE AND EXC
- [SDR 98ZZZX20](https://openairdocs.org/sdr/98ZZZX20), Dec 15, 1997: VALVE. FAILED. AFTER TAKEOFF, VALVE FAILED IN OPEN POSITION. THIS CAUSED EXCESSIVE HOT BLEED AIR TO REACH COCKPIT. PRESSURIZATION WAS DIFFICULT TO CONTROL AND PILOTS WERE SUBJ
- [SDR 97ZZZX3445](https://openairdocs.org/sdr/97ZZZX3445), Jun 27, 1997: WHEEL HALF. CRACKED. WHEEL HALF WAS TESTED FOR MILLION AIR; SALT LAKE CITY, UTAH IAW DUNOP 32-40-2(4) 6-28-84, FOUND CRACKED.
- [SDR 97ZZZX2565](https://openairdocs.org/sdr/97ZZZX2565), Apr 28, 1997: SEAL. TORN. MKE/LAX - CHARTER FLIGHT DIVERTED TO STL. P/R APPROXIMATELY 6 FEET OF THE 9 FEET RUBBER SEAL ON RT WING TO FUSELAGE FAIRING TORN OFF IN-FLIGHT. PILOTS REPORTED 
- [SDR 32697125CK](https://openairdocs.org/sdr/32697125CK), Mar 26, 1997: DUCT. LOOSE. REAR BAY OVERHEAT LIGHT CAME ON IN FLIGHT. RE-INSTALLED ACM EXHAUST DUCT AND CLAMP. OPS CHECKED ON GROUND - GOOD. (X)
- [SDR 96ZZZX5276](https://openairdocs.org/sdr/96ZZZX5276), Oct 3, 1996: DUCT. CRACKED. AIR CONDITIONING RAM AIR INTAKE TO REFRIGERATION UNIT INLET DUCT SEVERELY CRACKED ON LT AND RT SIDES LOWER AREA. RT SIDE LOWER CONNECTION PORT (CAPPED FOR THIS 
- [SDR 96ZZZX4334](https://openairdocs.org/sdr/96ZZZX4334), Aug 8, 1996: TIRE. FAILED. TIRE LOST 25 POUNDS PRESSURE OVERNIGHT. FOUND HOLE IN SIDEWALL. REPLACED TIRE WHICH HAD 199 LANDINGS. NORMAL USAGE GIVES 500 LANDINGS. TIRE SENT TO DUNLOP FOR E
- [SDR 96ZZZX4692](https://openairdocs.org/sdr/96ZZZX4692), Jul 29, 1996: FLAP VANE. CRACKED. THE LT AND RT OTBD FLAP VANE SKINS AND VANE SPARS HAVE BEEN ALTERED FROM THE ORIGINAL. A RADIUS APPROX 1 INCH WIDE AND .6250 INCH DEEP HAS BEEN GROUND INTO THE 
- [SDR 96ZZZX4691](https://openairdocs.org/sdr/96ZZZX4691), Jul 29, 1996: FLAP VANE. CRACKED. THE LT AND RT OTBD FLAP VANE SKINS AND VANE SPARS HAVE BEEN ALTERED FROM THE ORIGINAL. A RADIUS APPROX 1 INCH WIDE AND .6250 INCH DEEP HAS BEEN GROUND INTO THE 
- [SDR 96ZZZX3899](https://openairdocs.org/sdr/96ZZZX3899), Jul 19, 1996: DUCT. CRACKED. WHILE ACCOMPLISHING AIRFRAME INSPECTION, ONE OF THE INSPECTION REQUIREMENTS CALLED OUT TO INSPECT THE APU. WHILE CONDUCTING THE INSPECTION, NOTED A LARGE CRACK 
- [SDR 96ZZZX3048](https://openairdocs.org/sdr/96ZZZX3048), May 1, 1996: DUCT. CRACKED. WHILE ACCOMPLISHING 500-HOUR AIRFRAME INSPECTION, ONE OF THE INSPECTION REQUIREMENTS CALLED OUT TO INSPECT THE APU. DURING INSPECTION, LARGE PIECES OF METAL WER
- [SDR 96ZZZX2573](https://openairdocs.org/sdr/96ZZZX2573), Apr 24, 1996: WHEEL ASSY. BROKEN. FOUND RT MLG OUTBOARD WHEEL BROKEN ON BRAKE SIDE OF ASSY. APPROXIMATELY 8 INCHES OF THE RIM HAD BROKEN OFF DURING LANDING. THIS CONDITION WAS FOUND DURING A POS
- [SDR 95ZZZX6462](https://openairdocs.org/sdr/95ZZZX6462), Oct 24, 1995: VALVE. FAILED. HYDRAULIC FLUID FLOWED FROM RESERVOIR TO BLEED AIR SYSTEM THROUGH RT PRESSURE SOURCE LINE. SUSPECT HYDRAULIC FLUID FLOW INTO BLEED AIR SYSTEM CAUSED BY INITIAL 
- [SDR 95ZZZX3266](https://openairdocs.org/sdr/95ZZZX3266), Jun 5, 1995: WHEEL HALF. CRACKED. INSPECTION FOUND A 1 INCH CRACK LOCATED IN THE RADIUS OF THE HUB ADJACENT TO THE PART NUMBER/SERIAL NUMBER. THIS PART WAS EDDY CURRENT TESTED IAW DUNLOP 32-40-0

## STCs that may be installed (OpenAirDocs) (110, 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 ST01305WI-D](https://openairdocs.org/stc/ST01305WI-D): Modification of a Collins ALT-50A or ALT-55B Radio Altimeter system installation to a Collins ALT-1000 or ALT-4000 Radio Altimeter system installation in accordance with Collins Drawing Index as listed on AML No. ST01305WI-D, Revision -, or later FAA approved revision. Rockwell Collins Inc
- [STC ST12461IB](https://openairdocs.org/stc/ST12461IB): Installation of Cockpit Voice Recorder with optional RIPS Upgrade. Mid- Canada Mod Center
- [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc
- [STC ST316CH](https://openairdocs.org/stc/ST316CH): Installation of a TCAS791/791A Traffic alert and collision avoidance system I (TCAS I). Acron Aviation 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 ST11285DS](https://openairdocs.org/stc/ST11285DS): An update to the existing Collins Aerospace Integrated Flight Information System (IFIS) FSU-5010 and upgrade the existing XMWR-1000 to a XMWR-1000S (Sirius XM) in Part 25. BHE & Associates Ltd
- [STC ST01084WI](https://openairdocs.org/stc/ST01084WI): Installation of Collins TCAS-4000 TCAS II System (with or without optional Avidyne Flight Max 800 MDF). Blackhawk Aerospace Technologies Inc
- [STC ST01085WI](https://openairdocs.org/stc/ST01085WI): Installation of Honeywell MK VIII Enhanced Ground Proximity Warning System (EGPWS) (with/without optional Avidyne Flight Max 800 MFD). Blackhawk Aerospace Technologies Inc
- [STC ST02635LA](https://openairdocs.org/stc/ST02635LA): Modification to replace the existing Mode S Transponder system with the ACSS NXT-600 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST04340NY](https://openairdocs.org/stc/ST04340NY): Installation of TCAS 7.1 (ACAS II) upgrade of Prior Existing TCAS 7.0. Scandinavian Avionics Design ApS
- [STC ST02068CH](https://openairdocs.org/stc/ST02068CH): Install air ambulance conversion. Spectrum Aeromed LLC dba Spectrum Aeromed
- [STC ST00790DE](https://openairdocs.org/stc/ST00790DE): Installation of BendixKing CAS 67B Traffic Alert and Collision Avoidance System (TCAS) II Version 7.1. Peregrine
- [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 ST00304WI](https://openairdocs.org/stc/ST00304WI): Installation of Keddeg Company 21BC113 coaleser assembly. Purolator Facet, 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 ST02609LA](https://openairdocs.org/stc/ST02609LA): Modification to replace the existing Mode S Transponder system with ACSS NXT-700 Mode S Transponder with ADS-B Out. Aviation Communication and Surveillance Systems (ACSS) LLC
- [STC ST00780WI-D](https://openairdocs.org/stc/ST00780WI-D): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation. Textron Aviation Inc
- [STC ST00781WI-D](https://openairdocs.org/stc/ST00781WI-D): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation. Textron Aviation 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 SA1002CE](https://openairdocs.org/stc/SA1002CE): Relocation of warning cancel switch from instrument panel to #1 engine power lever. Textron Aviation Inc
- [STC SA766CE](https://openairdocs.org/stc/SA766CE): Installation of Forward refreshment bar. Textron Aviation Inc
- [STC SA767CE](https://openairdocs.org/stc/SA767CE): Installation of Multi-Place Couch. Textron Aviation Inc
- [STC SA768CE](https://openairdocs.org/stc/SA768CE): Installation of Collins WXR-80 weather radar. Textron Aviation Inc
- [STC SA769CE](https://openairdocs.org/stc/SA769CE): Passenger Oxygen System installation. Textron Aviation Inc
- [STC SA770CE](https://openairdocs.org/stc/SA770CE): Installation of Flite-Tronic Model FC-15B standby inverter. Textron Aviation Inc
- [STC SA858CE](https://openairdocs.org/stc/SA858CE): Installation of Intercontinental Dynamics Corp. 16007-62 Encoding Altimeter; 18152-307 Static Defects Correction Module; 23989-002 Altitude Alerter, and 18013B-2 Vertical Speed Indicator. Textron Aviation Inc
- [STC SA867CE](https://openairdocs.org/stc/SA867CE): Installation of Sperry Model AA-220 Radio Altimeter. Textron Aviation Inc
- [STC SA878CE](https://openairdocs.org/stc/SA878CE): Installation of Forward Refreshment Bar. Textron Aviation Inc
- [STC SA757CE](https://openairdocs.org/stc/SA757CE): Install avionics rack(s). Textron Aviation Inc
- [STC SA759CE](https://openairdocs.org/stc/SA759CE): Installation of cabin temperature control system. Textron Aviation Inc
- [STC SA760CE](https://openairdocs.org/stc/SA760CE): Installation of a smoke detector system. Textron Aviation Inc
- [STC SA761CE](https://openairdocs.org/stc/SA761CE): Installation of annunciator light panel. Textron Aviation Inc
- [STC SA762CE](https://openairdocs.org/stc/SA762CE): Installation of overhead panel. Textron Aviation Inc
- [STC SA763CE](https://openairdocs.org/stc/SA763CE): Instrument panel installation. Textron Aviation Inc
- [STC SA764CE](https://openairdocs.org/stc/SA764CE): Installation of vestibule baggage and avionics rack. Textron Aviation Inc
- [STC ST01560CH](https://openairdocs.org/stc/ST01560CH): Install Aero Medical Products Mfg., Inc. Air Ambulance Stretcher P/N 125 using Installation Kit P/N 805. Paul/ Lanna Egan LLC
- [STC ST01852LA](https://openairdocs.org/stc/ST01852LA): Installation of Rosemount Pitot Static Probes, dual Honeywell AM-250 Digital Altimeters, Skylight Avionics ADC-602 Analog Interface Unit and standby Altimeter in Model BH125-400 and -600A airplanes equipped with Collins APS-104 Autopilots. Flight Test Aerospace, Inc
- [STC ST00415LA](https://openairdocs.org/stc/ST00415LA): Installation of Concorde Battery Model RG-390E. Concorde Battery Corporation
- [STC ST01809LA](https://openairdocs.org/stc/ST01809LA): Installation of Hawker PN 9750W0640 Sealed Lead Acid Battery. Securaplane Technologies
- [STC ST01675WI](https://openairdocs.org/stc/ST01675WI): Modification of a Rockwell Collins, Inc. File Server Unit (FSU) installation. Rockwell Collins Inc
- [STC ST546CH-D](https://openairdocs.org/stc/ST546CH-D): Installation of an AlliedSignal Avionics, Dual GNS-XLS, Flight Management System with GPS as a primary means of navigation. Standard Aero
- [STC ST01380LA](https://openairdocs.org/stc/ST01380LA): Installation of Diamond J, Inc. Engine Indicators N1, N2, and ITT. Gulfstream-California Inc
- [STC ST00673WI-D](https://openairdocs.org/stc/ST00673WI-D): Modification of Collins VHF-22A/VHF-22B VHF COMM Receiver Transmitter with CTL-22 Control Pro Line II System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System installation. Rockwell Collins Inc
- [STC ST00682WI-D](https://openairdocs.org/stc/ST00682WI-D): Modification of Collins VHF-20/VHF-20A/VHF-20B VHF COMM Receiver Transmitter with CTL-20 Control Pro Line I System Installation to a Collins VHF-22C/VHF-22D VHF COMM Receiver Transmitter with CTL-22C Control 8.33 kHz Pro Line II System Installation in accordance with Collins Installation Instructions as listed on AML No. ST00682WI-D, Revision -, or later FAA approved revisions. Rockwell Collins Inc
- [STC ST01486SE-D](https://openairdocs.org/stc/ST01486SE-D): Group aircraft approval for Reduced Vertical Separation Minimum (RVSM). AeroMech Incorporated
- [STC ST349CH-D](https://openairdocs.org/stc/ST349CH-D): Installation of APU Access Panels. Standard Aero
- [STC SA1020SW](https://openairdocs.org/stc/SA1020SW): Installation of Collins AP-104 autopilot and FD-109H/FD-109F Flight Directors with associated sensory equipment. JSF Aviation Services Inc
- [STC SA1413SW](https://openairdocs.org/stc/SA1413SW): Three Flite-Tronics static inverters. JSF Aviation Services Inc
- [STC ST01623SE](https://openairdocs.org/stc/ST01623SE): Installation of Innovative Solutions and Support (IS&S) Air Data Display Units. AeroMech Incorporated
- [STC ST01003CH-D](https://openairdocs.org/stc/ST01003CH-D): Installation of AlliedSignal Aerospace N1 digital electronic engine control (DEEC). Honeywell International Inc

All 110: https://openairdocs.org/model/beechcraft-hawker-bh-125-400a/stcs.md

## PMA parts (OpenAirDocs) (528, 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.

- [207218HP](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166816467420250807185055.0001): Thrust Washer. Central Texas Aircraft Parts (CTAP) · PMA PQ0880SW · Replaces 207218 · 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
- [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
- [447883LA](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID173382416820241107175411.0001): Valve, Safety Assy. LanAir Research and Development Inc · PMA PQ1031NE · Replaces 447883 · Nov 5, 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
- [804-1216](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID155583220320240924135410.0001): 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
- [2101818-2](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID163210899920230731171155.0001): Adapter Cable. Honeywell International Inc. · PMA PQ1222NM · Replaces 2101818-2 · Jul 26, 2022
- [2101819-3](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID131689901920230731171156.0001): Adapter Cable. Honeywell International Inc. · PMA PQ1222NM · Replaces 2101819-3 · Jul 26, 2022
- [AG627000-13](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID125559412320220809130934.0001): Gasket – Marker Beacon. Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · Modification part · May 10, 2022
- [AG844000-23](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141798804420220809102605.0001): Gasket – UHF/VHF Antenna. Aviation Devices & Electronic Components LLC (Av-DEC) · PMA PQ3846SW · Modification part · Apr 18, 2022
- [85020-8](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID147862969420220624165500.0001): Separator Outline-Water. Honeywell International Inc. · PMA PQ1222NM · Replaces 85020-8 · Feb 15, 2022
- [AG844000-15](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID142917681920220408135822.0001): Gasket – UHF/VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Feb 8, 2022
- [RFS83149](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID166469017520230718142141.0001): Insulator, Heat. Rapco Fleet Support Inc · PMA PQ2386CE · Replaces AH083149 · Feb 2, 2022
- [AG728000-52](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID106620901820220408135736.0001): Gasket – Satcom Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Jan 26, 2022
- [AG627000-23](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID116158834920220408135720.0001): Gasket – Marker Beacon. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Dec 15, 2021
- [AG358000-08](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID137641864620220408135833.0001): Gasket – ELT Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [AG627000-12](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID120257217520220408140256.0001): Gasket – Marker Beacon Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Nov 17, 2021
- [NP-UN523-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID744401775520211130185326.0001): Gland Seal. AV8 PMA, LLC. · PMA PQ03885SW · Replaces 25UN523 · Sep 13, 2021
- [SJ8665 FP-009](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID968740832520211021172546.0001): Radome Boot. 3M Aerospace · PMA PQ04414CE · Modification part · Aug 30, 2021
- [SJ8665 FP-009](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID726329010720211021172556.0001): Radome Boot. 3M Aerospace · PMA PQ04414CE · Modification part · Aug 30, 2021
- [AG843000-17](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID390430749820211110110529.0001): Gasket - UHF/VHF Antenna. Aviation Devices & Electronic Components, LLC · PMA PQ03846SW · Modification part · Aug 9, 2021
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID927899915320210622142522.0001): “. AeroLEDs LLC · PMA PQ5259NM · Mar 24, 2021
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID888651024020210622142502.0001): “. AeroLEDs LLC · PMA PQ5259NM · Mar 24, 2021
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID568607603220210622142449.0001): “. AeroLEDs LLC · PMA PQ5259NM · Mar 24, 2021
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID409205360202106221425110.0001): “. AeroLEDs LLC · PMA PQ5259NM · Mar 24, 2021
- [“](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID230040780820210622142533.0001): “. AeroLEDs LLC · PMA PQ5259NM · Mar 24, 2021
- [NPFA-AIR117292-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID951858819202111301623250.0001): Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR117292 · Mar 15, 2021
- [NPFA-AIR110418-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID937590706120211130162324.0001): Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR110418 · Mar 15, 2021
- [NPFA-AIR110440-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID913723648920211130162325.0001): Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR110440 · Mar 15, 2021
- [NP-30948-103](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID843934654620211130162329.0001): Cam Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces S30948-2 · Mar 15, 2021
- [NP-30948-101](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID837333973720211130162329.0001): Delta Seal. AV8 PMA, LLC. · PMA PQ03885SW · Replaces S30948-1 · Mar 15, 2021
- [NP-25988/1-903](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID835093734420211130162327.0001): O-Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces DHS1650A · Mar 15, 2021
- [NP-UM495-7](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID817051425620211130162326.0001): Wiper Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces 21UM495-7 · Mar 15, 2021
- [NPFA-AIR110410-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID802835978720211130162324.0001): Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR110410 · Mar 15, 2021
- [NPFA-AIR45224-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID594942248920211130162321.0001): Seal. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR45224 · Mar 15, 2021
- [NP-UM495-9](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID491729744320211130162326.0001): Wiper Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces 21UM495-9 · Mar 15, 2021
- [NPFA-AIR46174-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID468750219820211130162323.0001): Seal. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR46174 · Mar 15, 2021
- [NPFA25-6UM31-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID454978320211130162319012.0001): Ring. AV8 PMA, LLC. · PMA PQ03885SW · Replaces 25-6UM31 · Mar 15, 2021
- [NPFA-AIR45596-1](https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID429747695202111301623220.0001): Seal. AV8 PMA, LLC. · PMA PQ03885SW · Replaces AIR45596 · Mar 15, 2021

All of them: https://openairdocs.org/model/beechcraft-hawker-bh-125-400a/pma.md

## The same model under other registry codes

Amateur-built copies and renamed makers get their own codes.

- [Hawker Siddeley BH.125-400A](https://openairdocs.org/model/hawker-siddeley-bh-125-400a): 2 registered aircraft, registry code 4230138

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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.