# STC SA409NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Sessler, Jay L., United States
- Description: Installation of a Continental O-470K oil pan on a Continental O-470L engine
- Applied: February 18, 1977
- Status date: February 23, 1977
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS 5A6](https://openairdocs.org/tcds/5A6)
- Certificate PDF: https://openairdocs.org/files/sha256/4c/84/4c8425ff9eb61b215208f28ac611f77c2a28fd20215ffdc9edbdb95492633e40
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/752999AF678929CA86257AD40073DA3C.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA409NW

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 180 ([TCDS 5A6](https://openairdocs.org/tcds/5A6))

## What the certificate says

The certificate is a scan without a text layer; open the PDF to read it.

## Every issue (1)

- February 23, 1977: Issued, Current. [certificate](https://openairdocs.org/files/sha256/4c/84/4c8425ff9eb61b215208f28ac611f77c2a28fd20215ffdc9edbdb95492633e40)

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