SA4-184
Replaced ASO-9 engine with C85-12F engine in accordance with drawing (Form ACA-337 dated 1/26/57). Held by Chandler W H. Last revised March 22, 1957. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Consolidated Vultee Aircraft Corporation Stinson Division
- Models
- 10
- Type certificate
- A-709
- On this site
- Stinson 10 89 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 22, 2026.