SA3145SO
Provides an approved procedure for applying Aero-Trim Aeroseal, P/N 500 externally to wing skin seams of fuel tanks to stop seepage from micro leaks up to .005 inches wide. Held by Aero Trim, INC, which holds 26 approved modifications in all. Last revised February 20, 1992. System: flight controls.
What it applies to
- Kind of product
- Aircraft
- Design holder
- Mooney Aircraft Corporation
- Models
- M20 Series
- Type certificate
- 2A3
- On this site
- Mooney M-20 6,247 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.