SA4968NM
Installation of a Lycoming O-320-E2D engine equipped with a Sensenich 4DM6-0-58 propeller reduced to 73-inch diameter, using a Lycoming propeller spacer, P/N E18776, modified with 5/8" bushings threaded to accept 3/8" bolts. Held by Anne Barth. Last revised August 14, 1990. System: propeller.
What it applies to
- Kind of product
- Aircraft
- Design holder
- True Flight Holdings LLC
- Models
- AA-5
- Type certificate
- A16EA
- 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.