# STC SA1693SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Mitsubishi Heavy Industries America Inc., United States
- Description: Installation of Bendix M-4D autopilot system.
- Applied: December 21, 1972
- Status date: January 19, 2022
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS A2PC](https://openairdocs.org/tcds/A2PC)
- Certificate PDF: https://openairdocs.org/files/sha256/c3/3e/c33edb621c0ecc6fff0b12d7fe59865b89b3ed29eadee21ff9be3186152eedc8
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID193430778220250922203515.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1693SW

## ADs that name it (1)

- [AD 88-13-01](https://openairdocs.org/ad/88-13-01): Autopilots · Mitsubishi Heavy Industries MU-2B, MU-2B-10, MU-2B-15 and 10 more. Effective Jul 11, 1988. Cited in the text

## Approved models (2)

- Mitsubishi Heavy Industries Ltd. MU-2B-35 ([TCDS A2PC](https://openairdocs.org/tcds/A2PC))
- Mitsubishi Heavy Industries Ltd. MU-2B-36 ([TCDS A2PC](https://openairdocs.org/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.

SA1693SW Mitsubishi Heavy Industries America, Inc.

17304 Preston Road, Suite 1270 Dallas, TX 75252 Part 10 the Civil Air Regulations A2PC Mitsubishi MU-2B-35, MU-2B-36 Installation of Bendix M-4D Autopilot System according to MAI Engineering Design Summary 935A-0021, Revision K dated 2/21/75.

(See continuation sheet 3 of 3) December 21, 1972 March 31, 1986; August 17, 1999; January 19, 2001; December 10, 2009;

June 15, 2020; January 19, 2022 June 28, 1973 October 15, 1973; December 13, 1974 Rev. 2 S. Frances Cox Acting Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Aircraft Certification Service 3

SA1693SW 3

SA1693SW Date of Issuance: June 28, 1973 Date Amended: December 13, 1974 Date of Reissuance: January 19, 2022

The following FAA Approved Airplane Flight Manual Supplements are required:

1. Supplement dated June 28, 1973, for Bendix M-4D Automatic Flight Control Systems installed in Model MU-2B-35.

2. Supplement dated October 15, 1973, for Bendix M-4D Automatic Flight Control System with Automatic Rudder Trim installed in Model MU-2B-35.

3. Supplement dated December 13, 1974, for Bendix M-4D Automatic Flight Control System with Bendix Pitch Trim and with Automatic Rudder Trim installed in Model MU-2B-35.

4. Supplement dated December 12, 1974, for Bendix M-4D Automatic Flight Control System with Bendix Pitch Trim with Automatic Rudder Trim installed in Model MU-2B-36.

Eligible on Mitsubishi Model MU-2B-35, Serial No. 548 and subsequent.

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 a product, the holder must give the other person written evidence of that permission.

-END- 3 3

## Every issue (2)

- January 19, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/c3/3e/c33edb621c0ecc6fff0b12d7fe59865b89b3ed29eadee21ff9be3186152eedc8)
- January 19, 2001: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/37/98/3798ee54be7b95f6556033b17120fc97db733378a79b6bf799b2f3b3c6ac6153)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.