FAA-listed STC holder

Coulson Aviation (USA) Inc. STCs

The Jun 30, 2026 FAA DRS snapshot lists 6 selected supplemental type certificates with status Current under Coulson Aviation (USA) Inc.. The records span 4 public aircraft directories and 3 modification categories. This is a research directory, not a claim that any specific kit or service is currently offered.

listed Current at snapshot

aircraft directories

modification categories

Jun 6, 2025

latest recorded revision

Modification mix

Other aircraft modifications4 Fuel systems1 Cabin and interiors1

Aircraft represented

Boeing 737-300 Series522 STCs Lockheed Martin 382G34 STCs USDA Forest Service C-130A6 STCs Coulson Aviation (USA) EC-130Q5 STCs

Recently revised records

Showing the 6 most recently revised records. Category directories provide the complete paginated discovery path.

6 displayed records.

Search every indexed record for this holder. The table below contains the recently revised records shown on this page.

Coulson Aviation (USA) Inc. supplemental type certificates, aircraft applicability, source status and dates
STC and modification	Aircraft / model / TC	Source status and dates	Holder and authority
ST02537LA Installation of below the floor retardant tank. Fuel systems View record	Coulson Aviation (USA) EC-130QTC T00019LA Lockheed Martin 382GTC A1SO Coulson Aviation (USA) C-130HTC T00019LA	Current at cited snapshot Revised Jun 6, 2025 Application: Sep 22, 2014	FAA holder: Coulson Aviation (USA) Inc. FAA authority record
ST02584LA Installation of Retardant Aerial Delivery System (RADS) XXL. Other aircraft modifications View record	Coulson Aviation (USA) C-130HTC T00019LA Coulson Aviation (USA) EC-130QTC T00019LA Lockheed Martin 382GTC A1SO	Current at cited snapshot Revised Jun 4, 2025 Application: May 19, 2015	FAA holder: Coulson Aviation (USA) Inc. FAA authority record
ST04050NY Installation of the Coulson Aerial Firefighter Tanker Modification to Boeing Model 737-300 series aircraft per Coulson Aviation USA, Inc. Other aircraft modifications View record	Boeing 737-300 SeriesTC A16WE	Current at cited snapshot Revised Jan 9, 2024 Application: Mar 9, 2017	FAA holder: Coulson Aviation (USA) Inc. FAA authority record
SR02728LA Installation of Retardant Aerial Delivery System Large (RADS. Other aircraft modifications View record	Unical Air CH-47DTC R00024LA	Current at cited snapshot Revised Jun 16, 2020 Application: Sep 12, 2019	FAA holder: Coulson Aviation (USA) Inc. FAA authority record
ST09905AC Installation of Night Vision Goggle (NVG) Compatible Interior Lighting System. Cabin and interiors View record	Coulson Aviation (USA) EC-130QTC T00019LA	Current at cited snapshot Revised Oct 25, 2019 Application: Feb 28, 2019	FAA holder: Coulson Aviation (USA) Inc. FAA authority record
SA4850NM Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation. Other aircraft modifications View record	Coulson Aviation (USA) EC-130QTC T00019LA USDA Forest Service C-130ATC A15NM	Current at cited snapshot Revised Aug 14, 2014 Application: Oct 4, 1989	FAA holder: Coulson Aviation (USA) Inc. FAA authority record

Modification mix

Aircraft represented

Recently revised records

Installation of below the floor retardant tank.

Installation of Retardant Aerial Delivery System (RADS) XXL.

Installation of the Coulson Aerial Firefighter Tanker Modification to Boeing Model 737-300 series aircraft per Coulson Aviation USA, Inc.

Installation of Retardant Aerial Delivery System Large (RADS.

Installation of Night Vision Goggle (NVG) Compatible Interior Lighting System.

Installation of Retardant Tanks for the special purpose of Forest and Wildlife Conservation.