# STC SA2354SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: RAM Aircraft Limited Partnership, United States
- Description: Installation of Teledyne Continental TSIO-520-N: or -NB Engine.
- Applied: April 17, 1976
- Status date: February 20, 2008
- 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/ae/f4/aef49e01601d5fc99119031b9247bb04d832fec90c49256bb54330cafba0707f
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5B40C390CF5FAC508625755B0078A532.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2354SW-D

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 414 ([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 Regulations.

Installation of Teledyne Continental TSIO-520-N; or –NB Engine according to Drawing R41401E (2 sheets) Revision E dated 9/20/79; EO 41479-62579 dated June 25, 1979, EO R41401E dated 11/18/81; or later FAA approved revision.

1. FAA Approved Airplane Flight Manual Suppl ement dated September 9, 1976, or January 3, 1977, or March 30, 1978, is required for S/N 414-0001 through 414-0800 with TSIO-520-N engines;

RAM Aircraft, Limited Partnership 7505 Karl May Drive Waco, TX 76708 A7CE Make : Cessna Model : 414 Date of application : April 17, 1976

Date of issuance : September 09, 1976

Date reissued : 10/08/2001; 09/20/2002; 02/20/2008

Date amended : 01/03/1977; 03/30/1978; 07/05/1979;

10/17/1979; 09/28/1981; 01/12/1982 Revision 6

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

(Title)

FAA Form 8110-2-1(10-69) Page 2 of 3

FAA Form 8110-2-1(10-69) Page 3 of 3

Number SA2354SW-D Date of Issuance: September 09, 1976

OR Supplement dated October 16, 1979, or dated April 30, 1981, is required for S/N 414-0001 through 414-0800 with TSIO-520-N, or –NB engines;

OR Supplement dated January 12, 1982, is required for S/N 414-0001 through S/N 414-0800 with Continental TSIO-520- N, or –NB engines McCauley 3AF32C93/82NC-5.5 or 3AF32C505/82NEA-5.5 propellers.

2. Aircraft must be placarded: Turbo Limitations Must Be Located On Instrument Panel in Plain View of the Pilot.

For additional limitations see airplane flight manual supplement.

3. The installer must determine whether this design change is compatible with previously approved modifications. 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.

-END-

## Every issue (1)

- February 20, 2008: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/ae/f4/aef49e01601d5fc99119031b9247bb04d832fec90c49256bb54330cafba0707f)

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