# STC SA1577SO

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Aircraft Products Supply Co Inc, United States
- Description: Replacement of drive coupling for airborne 211CC and 212CW vacuum pumps.
- Status date: June 12, 1984
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS Miscellaneous](https://openairdocs.org/tcds/Miscellaneous)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6BF55FA86BFB6B9385256CC1008213A9.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1577SO

## ADs that name it (0)

None.

## Approved models (1)

- Miscellaneous Miscellaneous ([TCDS Miscellaneous](https://openairdocs.org/tcds/Miscellaneous))

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