The U.S. aircraft register, updated daily
Approved modifications · supplemental type certificate · current · amended

ST02584LA

Installation of Retardant Aerial Delivery System (RADS) XXL. Held by Coulson Aviation (USA) INC., which holds 6 approved modifications in all. Last revised June 4, 2025. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Coulson Aviation (USA) Inc.; Coulson Aviation (USA) Inc.; Lockheed Martin Corporation
Models
C-130H, EC-130Q, 382G
Type certificates
T00019LA, T00019LA, A1SO
On this site
Airbus Helicopters EC 130 now H130 310 registered
Lockheed Martin Corp 382 5 registered
Lockheed C-130 Hercules 18 registered
The FAA's record
On the FAA's site

What an approved modification is

A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.

Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 8, 2026.