SE634GL
Superseded by STC SE01943CH. Add the following approved fuel: unleaded automotive gasoline, 87 minimum antiknock index. Held by Eaa Aviation Foundation, which holds 71 approved modifications in all. Last revised March 5, 2004. System: other and general.
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; Roos Aircraft Company Victor H.; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors; Teledyne Continental Motors
- Models
- AW, A-40, A-40-4, A-40-2, A-40-3, A-1 or 101, A-50 Series, A-65 Series, A-75 Series, C75 Series, C85 Series, C90 Series, O-200 Series
- Type certificates
- ATC 72, ATC 72, ATC 72, ATC 72, ATC 72, ATC 17, E-190, E-205, E-213, E-233, E-233, E-252, E-252
- On this site
- Cessna AW 6 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 7, 2026.