ST01959CH-D
Modification of existing Mode S Transponder system. Held by Gulfstream Aerospace Corporation, which holds 1,860 approved modifications in all. Last revised October 8, 2004. System: instruments and avionics.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Bombardier Inc.; Dassault-Aviation; Dassault-Aviation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation
- Models
- CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A), CL-600-2B16 (CL-601-3R), Mystere-Falcon 50, Mystere-Falcon 900, G-1159, G-1159A, G-1159B
- Type certificates
- A21EA, A21EA, A21EA, A21EA, A46EU, A46EU, A12EA, A12EA, A12EA
- On this site
- Bombardier CL-600 Challenger and CRJ 1,656 registered
Dassault MYSTERE-FALCON 50 90 registered
Dassault MYSTERE FALCON 900 129 registered
Gulfstream G-1159 Gulfstream II and III 42 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.