# STC SA09544SC

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: RAM Aircraft Limited Partnership, United States
- Description: Installation of a wastegate in-line oil strainer
- Applied: March 13, 1997
- Status date: October 8, 2001
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A25](https://openairdocs.org/tcds/3A25), [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/95/e4/95e47d43278583a4d6c2f504489f5c2e1971924988ac5a40a558d46b9229a388
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7CB3CD4314517BE885256CC1007F3B4A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09544SC

## ADs that name it (0)

None.

## Approved models (6)

- Cessna Aircraft Company 340 ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 340A ([TCDS 3A25](https://openairdocs.org/tcds/3A25))
- Cessna Aircraft Company 402C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 414 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 421B ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 421C ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

Part 3 of the Civil Air R egulations.

Original Product Type Certificate N umber :

Installation of a wastegate in-line oil strainer according to RAM Drawing No. 1896, dated March 4, 1997 or later FAA approved revision.

Compatibility of this design change with previously approved modifications must be determined by the installer. Required placard P/N 1737-9 located on the screen housing P/N 9052V states the following: “RAM RECOMMENDS WASTEGATE IN-LINE OIL STRAINER SHOULD BE REPLACED AT EVERY OIL FILTER CHANGE. FAILURE TO DO SO MAY RESULT IN REDUCTION OF TURBO BOOST. USE REPLACEMENT STRAINER AND O- RING KIT P/N EK9052V”.

If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

RAM Aircraft, Limited Partnership 7505 Karl May Drive Waco, TX 76708 3A25, A7CE M ake : Cessna M odel : 340; 340A; 402C; 414; 421B; 421C Date of application : March 13, 1997

Date of issuance : April 28, 1999

Date reissued : October 8, 2001

B y direction of the A dministrator

(Signature) S. Frances Cox, Manager Special Certification Office, Southwest Region

(Title)

FAA Form 8110-2-1(10-69) Page 2 of 2

Number SA09544SC Date of Issuance: April 28, 1999

## Every issue (1)

- October 8, 2001: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/95/e4/95e47d43278583a4d6c2f504489f5c2e1971924988ac5a40a558d46b9229a388)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.