SA2077CE
Operation of airplane on unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive, 88 minimum antiknock index (RON+MON)/2. Intermixing with aviation gasoline also approved. Held by Petersen Aviation INC, which holds 167 approved modifications in all. Last revised January 24, 1985. System: other and general.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Aeronca Aircraft Corporation; Aeronca Aircraft Corporation; Aeronca Aircraft Corporation
- Models
- YO-58 (Army L-3), 65-TAC (Army L-3E), 65-TC (Army L-3J)
- Type certificates
- A-728, A-728, A-728
- On this site
- Aeronca 65 Chief and Super Chief 377 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.