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

SA02365CH

Installation of NASI Supplemental Air-Conditioning System. Held by National Aircraft Service INC, which holds 16 approved modifications in all. Last revised December 20, 2006. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Central Air Service Inc.; Hawkins & Powers Aviation Inc.; Heavy Lift Helicopters Inc; LeSEA; Lockheed-Georgia Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Snow Aviation International Inc.; USDA Forest Service; Western International Aviation Inc.
Models
C-130A, C-130A, C-130B, C-130A, 282-44A-05 (C-130B), 382, 382B, 382E, 382F, 382G, 382J, C-130A, C-130A, C-130A
Type certificates
A39CE, A30NM, A35NM, A34SO, A5SO, A1SO, A1SO, A1SO, A1SO, A1SO, A1SO, TQ3CH, A15NM, A33NM
On this site
Lockheed Martin Corp 382 5 registered
Lockheed Martin C-130 6 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 7, 2026.