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

ST00882DE

Installation of Becker Avionics BXT6553 transponder. Held by Peregrine, which holds 43 approved modifications in all. Last revised November 13, 2019. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Dassault Aviation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace LP; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), Mystere-Falcon 900, G-1159A, G-IV, 1125 Westwind Astra, 31, 31A, 35, 35A (C-21A), 36, 36A, 55, 55B, 55C, 550, BAe.125 Series 800A, BAe.125 Series 800B, Hawker 800, Hawker 800XP, 650
Type certificates
A21EA, A21EA, A21EA, A46EU, A12EA, A12EA, A16NM, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A22CE, A3EU, A3EU, A3EU, A3EU, A9NM
On this site
Bombardier CL-600 Challenger and CRJ 1,656 registered
British Aerospace BAE 125 76 registered
Dassault MYSTERE FALCON 900 129 registered
Gulfstream G-1159 Gulfstream II and III 42 registered
Gulfstream G-IV Gulfstream IV 360 registered
Israel Aircraft Industries 1125 36 registered
Learjet 31 119 registered
Learjet 35 161 registered
Learjet 55 67 registered
Raytheon Corporate Jets Inc HAWKER 800 33 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.