# STC SA1646SW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Mitsubishi Heavy Industries America Inc., United States
- Description: Installation of Sunair ASB-100 HF system.
- Applied: March 12, 1973
- Status date: January 19, 2022
- Product: Aircraft, Small Multi-Engine
- Data sheets: [TCDS A2PC](https://openairdocs.org/tcds/A2PC)
- Certificate PDF: https://openairdocs.org/files/sha256/1a/61/1a612d1cb84d3baf61cb801f737dc4f8a39fd554dd78c79968e61abe7b6a3df2
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID159689174920250922201629.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1646SW

## ADs that name it (0)

None.

## Approved models (2)

- Mitsubishi Heavy Industries Ltd. MU-2B-25 ([TCDS A2PC](https://openairdocs.org/tcds/A2PC))
- Mitsubishi Heavy Industries Ltd. MU-2B-26 ([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.

SA1646SW Mitsubishi Heavy Industries America, Inc.

17304 Preston Road, Suite 1270 Dallas, TX 75252 Part 10 the Civil Air Regulations A2PC Mitsubishi MU-2B-25, MU-2B-26 Installation of Sunair ASB-100 HF System according to Engineering Design Summary 925A-0012, Revision B dated 8/27/74.

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.

March 12, 1973 March 31, 1986; August 17, 1999; January 19, 2001; December 10, 2009;

June 15, 2020; January 19, 2022 April 27, 1973 September 12, 1974 Rev. 1 S. Frances Cox Acting Manager, Fort Worth ACO Branch, Compliance & Airworthiness Division Aircraft Certification Service 2

SA1646SW 2

## Every issue (2)

- January 19, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/1a/61/1a612d1cb84d3baf61cb801f737dc4f8a39fd554dd78c79968e61abe7b6a3df2)
- January 19, 2001: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/14/54/145487e3e85a2e6916e7e275f65b8de372791b9b94d9cf6f00676bfb44b3c5ea)

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