# STC SA3-588

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Rock Island Oil & Refining Co. Inc., United States
- Description: Fenwal fire detection system.
- Status date: January 1, 1960
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS L-3-4](https://openairdocs.org/tcds/L-3-4)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/13F9BF8A6EB9C87F862570CB00553D8D.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3-588

## ADs that name it (0)

None.

## Approved models (2)

- Douglas Aircraft Co. Inc. Army A-26B ([TCDS L-3-4](https://openairdocs.org/tcds/L-3-4))
- Douglas Aircraft Co. Inc. Army A-26C ([TCDS L-3-4](https://openairdocs.org/tcds/L-3-4))

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