FAA STC category
Rotorcraft modifications STCs
Current rotorcraft STCs not represented by a more specific modification category. This directory contains 84 selected records listed with status Current in the June 30, 2026 FAA DRS snapshot and links every entry to its source.
Installation of MD Helicopters (MDH), LLC, Super D20B kit.
FAA holder: MD Helicopters, LLC
Installation of RMCI Inc. Expandable Rotorcraft Diagnostic System (XRDS).
FAA holder: Sterling Helicopter
Installation of Helicopter Transport Services, LLC Shock Absorber HTS-2000.
FAA holder: Helicopter Transport Services LLC
Manufacturing and Installation of Legacy Helicopter Maintenance (LHM) Improved Transmission Spindle.
FAA holder: Legacy Helicopter Maintenance Ltd
Installation of UH-1H composite main rotor blades on the UH-1B helicopters.
FAA holder: Northern X-Treme Helicopters
Installation of Coldstream Helicopters LH and RH Vertical Reference Windows.
FAA holder: Coldstream Helicopters Ltd.
Installation of Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump.
FAA holder: Helicopter Transport Services LLC
Installation of the Helicopter Film Works Inc Mount Assemblies.
FAA holder: Helicopter Film Works Inc
Installation of a HELICOM V2 NUM System or HELICOM V2+ NUM System for tracking a set of flight and system parameters during operation of the rotorcraft.
FAA holder: International Services Electronique Informatique
One Helicopter-only conversion of Sikorsky Model S-61L S/N 61428 to an S-61N configuration.
FAA holder: Carson Helicopters, Inc
Installation of the Helicopter FilmWorks Mount Assemblie.
FAA holder: Helicopter Film Works Inc
Installation of Bike Racks for AS350 series helicopter.
FAA holder: Oceania Aviation LTD
Installation of AlliedSignal T5371A and T5317B engines in a Bell 205A-1 helicopter.
FAA holder: Hillsboro Aviation Inc
Installation of Bristow Helicopter's LTD Automatic Float Deployment System (AFDS).
FAA holder: Sikorsky Aircraft Corporation
Installation of a Keystone Helicopter Baggage Retention System.
FAA holder: Sikorsky Aircraft Corporation
Installation of a Keystone Helicopter Entry Handrail System.
FAA holder: Sikorsky Aircraft Corporation
Installation of Keystone Helicopter Corp. Silencer Wall Panel System.
FAA holder: Sikorsky Aircraft Corporation
Helicopter configured with pilot and crew doors removed.
FAA holder: AgustaWestland Philadelphia Corporation
Installation of the Helicopter Transport Services, LLC (HTS) lightweight firefighting refill pump, Part Number HTS2-PUMP.
FAA holder: Helicopter Transport Services LLC
Installation of Bubble Windows in the Bell Helicopter Textron Model 407 Crew Doors.
FAA holder: Tech-Tool Plastics Inc
Installation of a sunvisor kit in cockpit of helicopters.
FAA holder: Bell Helicopter Textron Inc.
: Installation of an airborne high pressure water washing system in accordance with FAA Approved: Master Data List, Rotorcraft Flight Manual Supplement, and Instructions for Continued Airworthiness as appears on AML SH1938SO dated December 02, 2011 or later FAA Approved Revision.
FAA holder: Utilities Services of America
Installation of Scuba Seats in accordance with Premier Aviation, Inc. Master Drawing List Number B00-13035, Revision B, dated August 17, 2000 or later FAA approved revisions. Rotorcraft Flight Manual Supplement Drawing Number B09-63004, dated August 3, 2000, or later FAA approved revision.
FAA holder: Bell Helicopter Textron Inc.
Bell Helicopter Vibration Monitor (BHVM) System.
FAA holder: Bell Helicopter Textron Inc.
Installation and use of MIL=PRF-83282 hydraulic fluid in the TS Army TH-67 helicopter hydrauylic system.
FAA holder: Joint Venture Yulista Management Services/Science & Engineering Service (JVYS)
Installation of Carson Helicopters, Inc. composite main rotor blades, P/N 163-101-1.
FAA holder: Carson Helicopters Inc
Installation of an Intelligent Automation Corporation, Model 1134 Helicopter Monitor System.
FAA holder: Vector Aerospace Helicopter Services USA Inc.
Installation of Hawaii Helicopters' Air Conditioning System.
FAA holder: Hawaii Helicopters
Fabrication of Columbia Helicopters, Inc. (CHI) Support Assembly, part number C34D6001-9.
FAA holder: Columbia Helicopters Inc
Installation of a Keystone Helicopter Anit-Rotational Restraint System.
FAA holder: Erickson Air Crane Inc. dba Erickson Air-Crane
Installation of a Keystone Helicopter Anti-Rotational Restraint System.
FAA holder: Erickson Air Crane Inc. dba Erickson Air-Crane
Installation of Bell 204 crew seats in Bell 205 and 212 helicopters.
FAA holder: Vancouver Island Helicopters
Installation of Solar T-62T-40C3A auxiliary power unit. Conf 1 eligible on helicopter serial number 2084 ONLY.
FAA holder: American Eurocopter Corporation
Installation of a ANI Loran 7000 system in the Model SA365N-1 and AS365N-2 helicopter.
FAA holder: American Eurocopter Corporation
Installation of an aft mounted retractable Nightsun searchlight on the model SA365N-1 helicopter.
FAA holder: American Eurocopter Corporation
Installation of replacement rotorcraft flight manuals.
FAA holder: American Eurocopter Corporation
Installation of Selkirk Mountain Helicopter Ltd. Utility Basket.
FAA holder: Selkirk Mountain Helicopters Ltd.
Installation of Honeywell (Lycoming) LTS 101-750C-1 engines to replace Honeywell (Lycoming) LTS 101-650C-2, -3, -3A engines in accordance with CALSTAR Master Drawing List No. CAL 101, Revision A, dated September 10, 2002, or later FAA approved revisions. FAA Approved Rotorcraft Flight Manual Supplement No. CAL 104, Revision N/C, dated October 25, 2002, or later FAA approved revision is required with this installation. (See Page 3).
FAA holder: California Shock/Truma Air Rescue (CALSTAR)
Fabrication of Eagle Helicopter's Tail Rotor Guard Clamp.
FAA holder: Eagle Helicopters Inc
Modification of the Rotorcraft flight Manual.
FAA holder: Erickson Air Crane Inc. dba Erickson Air-Crane
Installation of Honeywell Solid State Flight Data Recorder (SSFDR) and Teledyne Digital Flight Data Acquisition Unit (DFDAU) per Columbia Helicopters, Inc., Master Drawing List 99-AVI-0221, Revision B, dated February 14, 2001, or later FAA approved revision.
FAA holder: Columbia Helicopters Inc