SE49WE
Modification of the supercharger inlet housing and connecting elbow assembly of Avco Lycoming IGSO-480-A1E6. Held by Gibbs Flying Service INC., which holds 2 approved modifications in all. Last revised April 13, 1970. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- Roos Aircraft Company Victor H.
- Models
- Lincoln PT-W
- Type certificate
- ATC 284
- 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 8, 2026.