ST04560AT
Replacement of the existing Honeywell HTF7000 engine upper and lower thrust reverser door assemblies with Quiet Technology Aerospace modified upper and lower thrust reverser door assemblies. Held by Quiet Technology Aerospace, which holds 11 approved modifications in all. Last revised June 18, 2025. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Bombardier Inc.; Bombardier Inc.; Embraer S.A.; Embraer S.A.; Gulfstream Aerospace LP
- Models
- BD-100-1A10, BD-100-1A10 (Challenger 300), EMB-545, EMB-550, Gulfstream G280
- Type certificates
- T00005NY, T00005NY, TC00062IB, TC00062IB, A61NM
- On this site
- Bombardier BD-100 Challenger 300 and 350 878 registered
Embraer EMB-545 173 registered
Embraer EMB-550 Praetor 600 and Legacy 500 156 registered
Iai Ltd GULFSTREAM G280 293 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.