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

ST04238AT

Upgrade of Honeywell Traffic Collision Avoidance Systems II (TCAS II) Processor Software from TCAS II Version 7.0 to TCAS II Version 7.1. Held by Aviation Partners Group INC. Last revised October 28, 2015. System: instruments and avionics.

What it applies to

Kind of product
Aircraft
Design holder
Beechcraft Corporation; Beechcraft Corporation; Beechcraft Corporation; The Boeing Company; The Boeing Company; The Boeing Company; Bombardier Inc.; Bombardier Inc.; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Dassault Aviation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Israel Aircraft Industries Ltd.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Lockheed Martin Corporation; Saab AB Saab Aeronautics; Saab AB Saab Aeronautics; Sabreliner Aviation LLC; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.
Models
BAe.125 Series 800A, Hawker 800XP, MU-300, 727-100 Series, 727-100C Series, 737-300 Series, CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), Fan Jet Falcon Series C, Fan Jet Falcon Series D, Fan Jet Falcon Series E, Fan Jet Falcon Series F, FALCON 2000, FALCON 2000EX, Mystere-Falcon 20 - C5, Mystere-Falcon 20 - D5, Mystere-Falcon 20 - E5, Mystere-Falcon 20 - F5, Mystere-Falcon 200, Mystere-Falcon 50, Mystere-Falcon 900, G-1159, G-1159A, G-1159B, G-IV, GV, 1124A, 25, 25A, 25B, 25C, 25D, 31, 31A, 35, 35A (C-21A), 36, 45, 55, 55B, 55C, 60, 1329-25, 340A (SAAB SF340A), SAAB 340B, NA-265-65, 500,...
Type certificates
A3EU, A3EU, A14SW, A3WE, A3WE, A16WE, A21EA, A21EA, A7EU, A7EU, A7EU, A7EU, A50NM, A50NM, A7EU, A7EU, A7EU, A7EU, A7EU, A46EU, A46EU, A12EA, A12EA, A12EA, A12EA, A12EA, A2SW, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, T00008WI, A10CE, A10CE, A10CE, A10CE, 2A15, A52EU, A52EU, A2WE, A22CE, A22CE, A22CE, A9NM, A22CE
On this site
Beechcraft 35 Bonanza and Debonair 1,077 registered
Beechcraft 36 Bonanza 111 registered
Beechcraft 60 Duke 32 registered
Boeing 727 37 registered
Boeing 737 2,892 registered
Bombardier CL-600 Challenger and CRJ 1,656 registered
British Aerospace BAE 125 76 registered
Cessna S550 94 registered
Dassault FALCON 2000 485 registered
Dassault MYSTERE FALCON 20-F5 12 registered
Dassault MYSTERE FALCON 200 9 registered
Dassault MYSTERE-FALCON 50 90 registered
Dassault MYSTERE FALCON 900 129 registered
Gulfstream G-1159 Gulfstream II and III 42 registered
Gulfstream G-IV Gulfstream IV 357 registered
Gulfstream G-V Gulfstream V 153 registered
Israel Aircraft Industries 1124 73 registered
Learjet 25 23 registered
Learjet 31 119 registered
Learjet 35 161 registered
Learjet 45 433 registered
Learjet 55 67 registered
Learjet 60 239 registered
Lockheed 1329 6 registered
Mitsubishi MU-300 17 registered
Rockwell International Corp NA-265 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 20, 2026.