SA909NE
Installation of an engine exhaust sound suppressor (ejector). Held by Country Aviation INC. Last revised June 28, 1995. System: engine.
What it applies to
- Kind of product
- Aircraft
- Design holder
- The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company; The Cessna Aircraft Company
- Models
- 305B (Military T0-1D; 0-1D; 0-1F), 305E, 305F, 305D (USAF 0-1G), 305C (USAF 0-1E), 305A (USAF 0-1A)
- Type certificates
- 3A14, 3A14, 5A5, 5A5, 5A5, 5A5
- On this site
- Cessna/Air Repair Inc 305 8 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 21, 2026.