# STC SA1775SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Century Flight Systems Inc
- Description: Installation of Mitchell automatic flight system Model AK391 and AK391FD consisting of Century IV autopilot and Century IV autopilot flight director with command/automatic electronic elevator trim and yaw damper with autotrim.
- Status date: July 16, 1984
- Data sheets: A2PC, A2PC
- Certificate PDF: https://openairdocs.org/files/sha256/53/ce/53ce4275c50810103dcb174cad923d25582bf0d1f0fa68bd491d2404973df29e
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/0CA2AEA33E70BD8185256CC10083D042.0001
- Page: https://openairdocs.org/stc/SA1775SW

## ADs that name it

None.

## Approved models (2)

- Mitsubishi Heavy Industries Ltd. MU-2B-20 (TCDS A2PC)
- Mitsubishi Heavy Industries Ltd. MU-2B-25 (TCDS A2PC)

## 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.

Bepartment of tensportation -jftfleral atriation administration Supplemental t^pe Certificate SA1775SW *~/teaa£a&<<>-n&>.

Century Flight Systems, Inc.

P.M. 1195 P. 0. Box 610 Mineral Wells, TX 76067 sdft&t^t/t&jf&eA4]Qsn-^e& •£n&*£wni£4tt (CAR 3) 10/ Civil Ait A2PC Mitsubishi MU-2B-20, MU-2B-25 installation of Mitchell Automatic Flight System Model AK391 and AK391FD consisting of Century IV Autopilot and Century IV Autopilot Flight Director with Command/ Automatic Electronic Elevator Trim and Yaw Damper with Autotrim per Bulletin No. 513 Revision (3) dated 4-8-74 and Master Drawing List 87A685 Revision C dated 4-8-74.

The following FAA Approved Airplane Flight Manual Supplements are required: 1. Dated 12-21-73, revised 5-9-74 for Models MU-2B-20 or MU-2B-25 when Mitchell Autopilot Model AK391 or AK391FD is installed; 2. Yaw Damper Supplement (P/N 68S105) dated 12-21-73 is required. Placard 13A660 is required.

This modification includes Mitsubishi Model MU-2B-25 modified per Mitsubishi Service Recommendation No. 013.

The rudder trim is required with this modification.

f th Other Previously approved modifications i& &w AzJiJ &•?• ^i/vfviiat j^A-tift &frnai'H't'n/4Jy,rfJ ' jtn /i£ ^ff- 'rttatra/i-p if &Lf 5-9-74; 7-16-84, Revision 2November 9, 1973 December 21, 1973 Don P. Watson Manager, Aircraft Certification Division Southwest Region

This certificate may be liaruferred in accorfiaact ivilh hAR 21 .17.

INSTRUCTIONS The transfer endorsement below may be used to notify the appropriate FAA Regional Office of I he transfer of this Supplemental Type Certificate.

The FAA will reissue the certificate in the name- of the. transferee and forward ii to him.

TRANSFER ENDORSEMENT Transfer the ownership of Supplemental Type Certificate Number .

to (Name of transferee).

(Address of transferee). and (City. StaU, and ,>//> codi) from (Name of grantor) (Print or type).

(Address of grantor j (Wumbtr and sfierlj , Stall, and $IP adij Extent of Authority (if licensing agreement):

Signature of grantor (In ink):

**C FAA AC 69-5536**

## Every issue (1)

- July 16, 1984: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/53/ce/53ce4275c50810103dcb174cad923d25582bf0d1f0fa68bd491d2404973df29e)

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From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.