SA249GL
Installation of P&W R985-AN1 engines modified in accordance with STC SE4-1136 in Beech D18S aircraft modified in accordance with STC SA4-1427 using existing installation procedures. Held by Rand J Aviation. Last revised June 21, 1978. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Raytheon Aircraft Company
- Models
- D18S
- Type certificate
- A-765
- 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 21, 2026.