# STC SA3721SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: RAM Aircraft Limited Partnership, United States
- Description: Install vacuum pump cooling shroud.
- Applied: July 31, 1986
- Status date: October 8, 2001
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/45/cc/45cc093f02c34892bdffe5cbd4fff4302e5cd46dc119277c8da910cd790f430a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ABE1A3B1C33A3C3D85256CC2000C59FD.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3721SW

## ADs that name it (0)

None.

## Approved models (4)

- Cessna Aircraft Company 401 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 402 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 414 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE))
- Cessna Aircraft Company 421 ([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 :

Install vacuum pump cooling shroud in accordance with RAM Drawing No. 1221, “Vacuum Pump Cooling Shroud Installation”, Revision B, dated February 11, 1987 and RAM Drawing No. 1199, “Vacuum Pump Cooling Shroud Detail”, Revision B, dated February 17, 1987, or later FAA approved revisions.

Compatibility of this design change with previously approved modifications must be determined by the installer. 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 A7CE M ake : Cessna M odel : 401/402/414/421 Series Date of application : July 31, 1986

Date of issuance : February 23, 1987

Date reissued : October 08, 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

## Every issue (1)

- October 8, 2001: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/45/cc/45cc093f02c34892bdffe5cbd4fff4302e5cd46dc119277c8da910cd790f430a)

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