# STC SA424CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Barbara or Bob Williams, United States
- Description: Installation of Lycoming 0-360- ( )  engine and Hartzell HC-C2YK-1N7666-2, HC-92ZK-8D/8447-12A or McCauley 2D36Cl4/7BKM-4 propeller or McCauley or Sensenich fixed pitched propeller.  *Landplane only
- Applied: January 28, 1966
- Status date: September 5, 1979
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS 3A17](https://openairdocs.org/tcds/3A17)
- Certificate PDF: https://openairdocs.org/files/sha256/73/e1/73e1833363d8773e706b4a2acbad6c20731f45fc5304fd7fe56729c3be876684
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID185271519220230824132723.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA424CE

## ADs that name it (3)

- [AD 82-07-02](https://openairdocs.org/ad/82-07-02): Engine Crankcase Breather · Lycoming O-360-A1A engine and Hartzell HC-C2YK-1B/7666A-2… (Avcon Industries STC SA1324CE or 14 others). Effective Apr 8, 1982. Named in the applicability
- [AD 77-16-01](https://openairdocs.org/ad/77-16-01): Actuating Pins · McCauley Propeller Systems 2A34C, 2A36C1, 2A36C18 and 8 more. Effective Aug 9, 1977. Cited in the text
- [AD 69-15-03](https://openairdocs.org/ad/69-15-03): Muffler Assembly · Lycoming O-320-A1A, A1B, A3A, A3B or Lycoming O-320-B1A, B1B… (D'Shannon Products STC SA135CE or 8 others). Effective Aug 20, 1969. Named in the applicability

## Approved models (5)

- Textron Aviation Inc. 175C ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- Textron Aviation Inc. P172D ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- The Cessna Aircraft Company 175 ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- The Cessna Aircraft Company 175A ([TCDS 3A17](https://openairdocs.org/tcds/3A17))
- The Cessna Aircraft Company 175B ([TCDS 3A17](https://openairdocs.org/tcds/3A17))

## What the certificate says

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

## Every issue (2)

- September 5, 1979: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/73/e1/73e1833363d8773e706b4a2acbad6c20731f45fc5304fd7fe56729c3be876684)
- September 5, 1979: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/ff/e9/ffe9a747c737324ae11b4bda314305718f34b27c6aadefb0c2713512d2ced859)

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