# STC SA4-428

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Glasco-Air Products, United States
- Description: Glass cloth with resin applied to all fabric surfaces except movable controls.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-774](https://openairdocs.org/tcds/A-774)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CE2986EEC623A917862570D00054D2A8.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-428

## ADs that name it (0)

None.

## Approved models (1)

- Consolidated Vultee Aircraft Corporation Stinson Division V-77 (Army AT-19) ([TCDS A-774](https://openairdocs.org/tcds/A-774))

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