# STC SA00290AT

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Duncan S Thomas, United States
- Description: Installation of cowl flaps, NACA air vent scoops for cabin ventilation and additional main landing gear doors.
- Status date: August 2, 1993
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7E6C06C0F853C9DA85256CC1007DC888.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA00290AT

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-24-250 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

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