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

ST00957CH

Installation of AlliedSignal GNS-XLS flight management system in accordance with Europe Aero Design Master Data List, EP903-0131-00, Rev 3, dated 9/14/98, or later FAA approved revision. Held by Eac North America, INC. (S/B Ead Aerospace), which holds 2 approved modifications in all. Last revised July 11, 2001. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Lockheed Aircraft Corporation
Models
382G
Type certificate
A1SO
On this site
Lockheed 382 13 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 22, 2026.