# STC SA1637GL

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Lauren J Rezac, United States
- Description: Install flap ratchet plate.
- Status date: August 27, 1991
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5A5](https://openairdocs.org/tcds/5A5)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D94396AFF609D1BF85256CC1008214D2.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1637GL

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 305A (USAF 0-1A) ([TCDS 5A5](https://openairdocs.org/tcds/5A5))

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