# STC SA4-323

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Winslow Aerofilter Corp, United States
- Description: Full Flow oil filter 30816A with element 1A0097.
- Status date: January 1, 1960
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21
- Data sheets: TCDS LTC-13
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/14439865B6AEB197862570CE00679BFD.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-323

## ADs that name it (0)

None.

## Approved models (2)

- Lockheed Aircraft Corporation Army B-34 (TCDS LTC-13)
- Lockheed Aircraft Corporation Navy PV-1 (TCDS LTC-13)

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