# STC SA3027SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell command/electric trim system Model AK440.
- Applied: October 29, 1974
- Status date: August 1, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS 1A10](https://openairdocs.org/tcds/1A10)
- Certificate PDF: https://openairdocs.org/files/sha256/0e/e1/0ee1fb83247a3f15924b05bd1e1b133e1113d5eab5a749975c7a13f1403f85b9
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E8C8EDFDD7895D0785256CC2000A92DC.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3027SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))
- Piper Aircraft Inc. PA-E23-250 ([TCDS 1A10](https://openairdocs.org/tcds/1A10))

## 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: SA30275W-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 Part 3 of the CIV11 Air Regulations:

Original Product - Type Certificate Number: 1A10 Make: Piper Model: PA-23-250 and PA-E33-250 Description of Type Design Change:

Installation of Mitchell Command/Electric Trim System Model AK440 according to Bulletin No. 562, dated 10-28-74 and Master Drawing List No. 87A748, dated 10-28-74.

This modification restricted to Piper Models PA-23-250 and PA-E23-250, both models with or without the modification per STC SA909WE. Both models being limited to 28 volt electrical systems only.

Placard P/N 13A807 required for use with Command/Electric Trim System.

vendored, suspended, revoked, or a lermination date is otherwise established by the Administrater of the Federal Aviation Administration .

Date of Application: 10-29-74 Jule wissued: 8-1-84, Revision 1 Date of Issuance: 10-31-74 I ate arsended:

FEDERAL AVIATION Don P. Watson (Signature) OMINISTRATD 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, State, and ZIP code) from (Name of grantor) (Print or type) (Address of grantor) (Number & street) (City, State, and ZIP code) Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

## Every issue (1)

- August 1, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0e/e1/0ee1fb83247a3f15924b05bd1e1b133e1113d5eab5a749975c7a13f1403f85b9)

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