# STC SA3145SO

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Aero Trim, Inc, United States
- Description: 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.
- Status date: February 20, 1992
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 2A3](https://openairdocs.org/tcds/2A3)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/07B68FB37DE126F585256CC2000A9473.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3145SO

## ADs that name it (0)

None.

## Approved models (1)

- Mooney Aircraft Corporation M20 Series ([TCDS 2A3](https://openairdocs.org/tcds/2A3))

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