SA1552NM
Installation of Lycoming IO-360(200 hp) engine, Hartzell constant speed propeller HC-C2YK/7666, and associated changes. Held by Univair Aircraft CORP, which holds 40 approved modifications in all. Last revised May 13, 1983. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Univair Aircraft Corporation
- Models
- 108-3
- Type certificate
- A-767
- 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.