# STC SA965CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Sigma Tek, Inc, United States
- Description: Installation of Model 1U328-001 vacuum pump and 1U292-003 suction relief valve.
- Status date: September 17, 1990
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 3A12](https://openairdocs.org/tcds/3A12)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B66693239C2B7E7A85256CC20058EB69.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA965CE

## ADs that name it (0)

None.

## Approved models (1)

- The Cessna Aircraft Company 172L ([TCDS 3A12](https://openairdocs.org/tcds/3A12))

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