# STC SA591SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ward Intl Aircraft Service, United States
- Description: Interior modification.
- Status date: April 1, 1973
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 7A1](https://openairdocs.org/tcds/7A1)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/3A844D386D2B101085256CC200122C7A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA591SW

## ADs that name it (0)

None.

## Approved models (1)

- Fairchild Industries Inc. F27 Series ([TCDS 7A1](https://openairdocs.org/tcds/7A1))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.