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

ST04575AT

Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering. Held by Chippewa Aerospace INC., which holds 3 approved modifications in all. Last revised December 5, 2023. System: other and general.

What it applies to

Kind of product
Aircraft
Design holder
Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; De Havilland Aircraft of Canada Limited; Saab AB; Saab AB; 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.; Learjet Inc.; Learjet Inc.; Learjet Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation Inc.; Textron Aviation 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; Dassault Aviation; Dassault Aviation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace LP; Gulfstream Aerospace LP; Gulfstream Aerospace LP; Gulfstream Aerospace LP; Gulfstream Aerospace LP; Gulfstream Aerospace LP; Embraer S.A.; Embraer S.A.; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation; Lockheed Martin Corporation
Models
CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), CL-600-2B16 (CL-604), BD-700-1A10, BD-700-1A11, BD-700-2A12, BD-100-1A10, DHC-8-400, 340A (SAAB SF340A), SAAB 340B, 45, 24, 24D, 25, 25A, 25B, 25C, 25D, 25F, 29, 31, 31A, 35, 35A (C-21A), 55, 55B, 55C, 60, 500, 550, S550, 560XL, 650, Hawker 800, Hawker 800 (U-125A), Hawker 800XP, Hawker 850XP, Hawker 900XP, Hawker 1000, 400, 400T, 680, 680A, 700, 750, Fan Jet Falcon, Fan Jet Falcon Series C, Fan Jet Falcon Series D, Fan Jet Falcon Series E, Fan Jet Falcon Series F, Fan Jet Falcon Series G,...
Type certificates
A21EA, A21EA, A21EA, A21EA, A21EA, T00003NY, T00003NY, T00003NY, T00005NY, A13NM, A52EU, A52EU, T00008WI, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A10CE, A22CE, A22CE, A22CE, A22CE, A9NM, A3EU, A3EU, A3EU, A3EU, A3EU, A3EU, A16SW, A16SW, T00012WI, T00012WI, T00015WI, T00007WI, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A7EU, A33EU, A46EU, A50NM, A50NM, A12EA, A12EA, A16NM, A16NM, A16NM, A16NM, A53NM, A61NM, TC00062IB, TC00062IB, 2A15, 2A15, 2A15, 2A15
On this site
Bombardier BD-100 Challenger 300 and 350 878 registered
Bombardier BD-700 Global Express, 5000 and 6000 659 registered
Bombardier CL-600 Challenger and CRJ 1,656 registered
Bombardier DHC-8 Dash 8 and Q400 58 registered
Cessna 560 Citation V, Ultra, Encore and Excel 1,344 registered
Cessna S550 94 registered
Dassault/Sud FAN JET FALCON 24 registered
Dassault FALCON 10 57 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
Embraer EMB-545 173 registered
Embraer EMB-550 Praetor 600 and Legacy 500 157 registered
Hawker Beechcraft Corp HAWKER 900 129 registered
Iai Ltd GULFSTREAM G280 294 registered
Israel Aircraft Industries 1125 36 registered
Israel Aircraft Industries ASTRA SPX 37 registered
Israel Aircraft Industries GULFSTREAM 100 8 registered
Learjet 24 16 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
Raytheon Corporate Jets Inc HAWKER 1000 8 registered
Raytheon Corporate Jets Inc HAWKER 800 32 registered
Saab Ab SAAB 340 6 registered
Saab-Fairchild 340 8 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.