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Aircraft STC directory

Bell Helicopter Textron 204B STCs

The Jun 30, 2026 FAA DRS snapshot contains 58 selected supplemental type certificates with status Current whose public applicability data names the Bell Helicopter Textron 204B. Use it to identify modification scope and recorded holders—not to determine serial-number effectivity, compatibility, installation approval, or commercial availability.

58
listed Current at snapshot
32
holder directories
12
modification categories
Mar 9, 2026
latest recorded revision

Modification demand surface

Other aircraft modifications28Engine and powerplant6Cargo and special mission6Aircraft structures5Avionics3Landing gear and brakes2Electrical systems2Aircraft connectivity2Propellers1Fuel systems1Aircraft performance1Cabin and interiors1

Recorded holders

Dart Aerospace Limited9Onboard Systems International4Bell Helicopter Textron Inc.4AEM USA Inc.3BLR Aerospace LLC.2Midwest Aerospace TC LLC2AKV Inc.2Apical Industries, Inc. dba Dart Aerospace2Hillsboro Aviation Inc2Latitude Technologies Corporation2Mechanical Specialties Inc2Magellan Aerospace1Dart Aerospace USA Inc.1WSH LLC1Helicopter Technology Co1Dart Aerospace Ltd.1Concorde Battery Corporation1Airwolf Aerospace LLC1Genesys Aerosystems Inc.1Vector Aerospace Helicopter Services USA Inc.1

Recently revised 204B STCs

Showing the 58 most recently revised records. Each entry links to the FAA source and separates public approval data from private commercial claims.

SR02126SEOther aircraft modifications

Installation of the MECHANICAL SPECIALTIES, Model # UH606 in accordance with document # UH606-100-ICAW paragraph 6, Revision A, dated November 09, 2008, or later FAA approved revision. Manufactured in accordance with Master Document list MDL-205-60-111, Revision A, dated April 9, 2009, or later FAA approved revision. Maintained in accordance with document # UH606-100-ICAW Revision A, dated November 09, 2008, or later FAA approved revision.

FAA holder: Mechanical Specialties Inc

View record