SA530GL
Installation of Wright R-1820-76A engine with associated cowling and fuel system changes in order to effect civil certification of military surplus Model T-28A. Held by Hamilton George B. Last revised May 25, 1982. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Rockwell International Corporation
- Models
- NA-260 (USAF T-28A)
- Type certificate
- 1A18
- 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 22, 2026.