Aircraft STC directory

Beechcraft HS.125 Series 600B STCs

The Jun 30, 2026 FAA DRS snapshot contains 8 selected supplemental type certificates with status Current whose public applicability data names the Beechcraft HS.125 Series 600B. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

listed Current at snapshot

holder directories

modification categories

May 18, 2021

latest recorded revision

Modification demand surface

Electrical systems2 Other aircraft modifications2 Safety and emergency equipment1 Avionics1 Cargo and special mission1 Aircraft structures1

Recorded holders

Aviall Services, Inc.2 Blackhawk Aerospace Technologies Inc.1 Peregrine1 Spectrum Aeromed LLC dba Spectrum Aeromed1 Lee Aerospace Inc.1 Concorde Battery Corporation1 Securaplane Technologies1

Recently revised HS.125 Series 600B STCs

Showing the 8 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

ST01085WISafety and emergency equipmentRevised May 18, 2021

Installation of Honeywell MK VIII Enhanced Ground Proximity Warning System (EGPWS) (with/without optional Avidyne Flight Max 800 MFD).

FAA holder: Blackhawk Aerospace Technologies Inc.

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ST00835DEAvionicsRevised Apr 17, 2019

Installation of Automatic Dependent Surveillance - Broadcast (ADS-B) Out and In functionality using the Garmin GTX 335R and GTX 345R Transponders plus qualified position sensor.

FAA holder: Peregrine

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ST02068CHCargo and special missionRevised Feb 28, 2019

Install air ambulance conversion.

FAA holder: Spectrum Aeromed LLC dba Spectrum Aeromed

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ST01228WIAircraft structuresRevised Oct 16, 2017

Replacement of OEM window pane assemblies with Lee Aerospace laminated window assembly and termination of OEM dry air system.

FAA holder: Lee Aerospace, Inc.

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ST00415LAElectrical systemsRevised Apr 18, 2014

Installation of Concorde Battery Model RG-390E.

FAA holder: Concorde Battery Corporation

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ST01809LAElectrical systemsRevised Mar 31, 2014

Installation of Hawker PN 9750W0640 Sealed Lead Acid Battery.

FAA holder: Securaplane Technologies

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SA1185SOOther aircraft modificationsRevised Oct 31, 2002

Replace existing batteries with 2371, 2376 or 23491 nickel-cadmium batteries.

FAA holder: Aviall Services, Inc.

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ST1003SOOther aircraft modificationsRevised Oct 31, 2002

Replace existing lead-acid batteries with Gill BB638/T1-E lead acid batteries, part numbers BSI 200 left and BSI 200 right.

FAA holder: Aviall Services, Inc.

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