# STC SA4-153

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Winslow Aerofilter Corp, United States
- Description: Oil filter 30816A with CP-1438-0 element.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A7](https://openairdocs.org/tcds/1A7), [TCDS A-795](https://openairdocs.org/tcds/A-795)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9A713D8F82557AFD862570D00054DB5C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-153

## ADs that name it (0)

None.

## Approved models (2)

- Martin-Marietta Corporation 202 ([TCDS A-795](https://openairdocs.org/tcds/A-795))
- Martin-Marietta Corporation 404 ([TCDS 1A7](https://openairdocs.org/tcds/1A7))

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