# STC SA3058SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell flight system model YK535 consisting of yaw damper system.
- Applied: June 2, 1975
- Status date: June 22, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE)
- Certificate PDF: https://openairdocs.org/files/sha256/c7/e3/c7e3dffef65331c3dbd890eeea5cca28c52fe14e41834e1e50e1c2b4acb5831b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/728DEC211019861085256CC2000A9340.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA3058SW-D

## ADs that name it (0)

None.

## Approved models (6)

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

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA305854-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, IX 76067 Certifies that the change in the type design for the following product with the limitations and condilions thorefon as specified hereon meets the airvorthiness requivements of Part 3 of the CIVI1 Air Regulations.

Original Product -Type Certificate Number: A7CE Make: Cessna Model: 401, 401A, 401B, 402, 402A, 4023 Description of Type Design Change:

Installation of Mitchell Flight System Model YK535 consisting of Yaw Damper System No. 87A793, Revision A, dated according to Bulletin No. 656, Revision 1, dated 9-22-76 and Master Drawing List 9-22-76 Limitations and Conditions:

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 685257-1, dated 10-22-76 is required for Cessna Models 401, 401A, 401B, 402.

FAA/DAS Approved Airplane Flight Manual Supplement, P/N 685435, dated 10-22-76 is required for Cessna Models 402A and 402B.

i lead an he ring dale eh is the basis for appr alishall main in fed unitan vendered, suspended, nevoked, or a termination date is hervise es laldished by the Adminis brat. x f the Federal Aviation Administration .

Date of Application: 6-2-75 Jule missued: 10-22-76, 6-22-84, Revision 2 Date of Issuance: 6-12-75 I ale unsendeed:

FEDERAL 'By direstige of the SIdministralr ON Don P. Watson • (Signature) TOMINISTRATA Manager, Aircraft Certification Division Southwest Region (Title) 47 FAA FORM 8110-2 (10-68)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) _ (Address of transferee). (Number and street) (City, Stake, and ZIP code) from (Name of grantor) (Print or type) - (Address of grantor) (l'umber and sireel ;

Signature of grantor (In ink): - 800-<43-n20

## Every issue (1)

- June 22, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c7/e3/c7e3dffef65331c3dbd890eeea5cca28c52fe14e41834e1e50e1c2b4acb5831b)

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