# STC SA3278SW-D

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc, United States
- Description: Installation of Mitchell command electric trim system model AK718.
- Applied: March 20, 1978
- Status date: March 28, 1984
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A19SO](https://openairdocs.org/tcds/A19SO)
- Certificate PDF: https://openairdocs.org/files/sha256/cb/ea/cbeab649f6851a583a4865764d283ebaa5c2f81ee1aab283547b713e1e3e8b52
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4A1615D76F29C33586257DB300742C7B.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3278SW-D

## ADs that name it (0)

None.

## Approved models (2)

- Piper Aircraft Inc. PA-44-180 ([TCDS A19SO](https://openairdocs.org/tcds/A19SO))
- Piper Aircraft Inc. PA-44-180T ([TCDS A19SO](https://openairdocs.org/tcds/A19SO))

## 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: SA327858-D This certificate issued to: Century Flight Systems, Inc.

F.M. 1195 P. O. Box 610 Mineral Wells, TX 76067 Purt 23 of the Pederal Aviation Regulations.

Original Product -Kype bertificate Number: A1950 Model: PA-44-180, PA-44-1807 Description of Type Design Change:

fistallation of Mitchell Command Electric Trim System Model AK718 according to Bulletin No. 852 Rev. 1 dated 1-8-80 and Master Drawing List No. 87A979, Rev. A dated 1-8-80 (14 Volt System), or later FAA approved reviaion.

FAA Approved Airplane Flight Manual Supplement, P/N 685670 Rev. 1 dated 1-18-80 is required.

A Placard stating "Conduct trim check prior to flight - See AFM" 18 required.

Thist ble deter the supporting tasch is the basis fir appreval shull remuin in effect until sur- Compatibility of this modification with other previously approved moditications vendered, suspended, vevoked, or a termination date is shervise established by the Adminis brat. r of the Federal Aviation Administration Date of Application: 3-20-78 Jule missued: 2-20-80; 3-28-84 Revision 2 Date of Issuance: . 4-7-78 Sale umended:

FEDERAL AVIATION * Bubics I the Sidministral Don P. Watson (Signature ) UMINISTRATO Manager, Aircraft Certification Division Southwest Region (Title)

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee).

(Address of transferee) (15a1ps pro esquins) from (Name of grantor) (Print or type) (Address of grantor) Extent of Authority (if licensing agreement):.

Date of Transfer: _ Signature of grantor (In ink): - +118 r. 0~. 1090-242.180

## Every issue (1)

- March 28, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/cb/ea/cbeab649f6851a583a4865764d283ebaa5c2f81ee1aab283547b713e1e3e8b52)

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