ST04787NY
Installation of True Blue Power TFC4000 AC-to-AC Converter. Held by Sterling Helicopter, which holds 8 approved modifications in all. Last revised December 1, 2022. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation; Gulfstream Aerospace Corporation
- Models
- GVI, GIV-X, GV-SP, G-IV, GV
- Type certificates
- T00015AT, A12EA, A12EA, A12EA, A12EA
- On this site
- Gulfstream G-IV Gulfstream IV 360 registered
Gulfstream G-V Gulfstream V 153 registered
Gulfstream GIV-X G450 9 registered
Gulfstream GV-SP G550 7 registered
Gulfstream GVI G650 31 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.