# STC SA234AL

- Type: Supplemental type certificate
- Status: Current, Amended
- Holder: Airglas Engineering Company, Inc., United States
- Description: Installation of Goodyear30 x 13 x 6 main gear tires.
- Status date: June 30, 1969
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A8](https://openairdocs.org/tcds/1A8)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/003B6E025A3BD41885256CC200015D02.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA234AL

## ADs that name it (0)

None.

## Approved models (5)

- Alliance Aircraft Group LLC H-250 ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Alliance Aircraft Group LLC H-295 (USAF U-10D) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Alliance Aircraft Group LLC H-391B ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Alliance Aircraft Group LLC H-395 (USAF L-28A or U-10B) ([TCDS 1A8](https://openairdocs.org/tcds/1A8))
- Alliance Aircraft Group LLC H-395A ([TCDS 1A8](https://openairdocs.org/tcds/1A8))

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