# STC SA168CE

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Ontic Engineering and Manufacturing Inc., United States
- Description: Twin engine synchronizer.
- Applied: August 28, 1963
- Status date: April 30, 2007
- Product: Aircraft, Small Multi-Engine
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 6A1](https://openairdocs.org/tcds/6A1)
- Certificate PDF: https://openairdocs.org/files/sha256/5f/8a/5f8a7952c018c024d9642308c83253cae1c6645b9a027736f364cc76e6d26361
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BDC93D950A7AD7EC862572D4004B176D.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA168CE

## ADs that name it (0)

None.

## Approved models (1)

- Twin Commander Aircraft Corporation 500-B ([TCDS 6A1](https://openairdocs.org/tcds/6A1))

## 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.

Part 3 of the Civil Air Regulations. (See Type Certificate Data Sheet No. 6A1 for Complete certification basis)

Original Product--Type Certificate Number: 6A1 Make: Twin Commander Aircraft Corporation Model: 500-B

Install Woodward Twin Engine Synchronizer in accordance with Installation Manual for Woodward Electronic Synchronizer Kit for Aero Commander Model 500B, dated August 30, 1963 or later FAA approved revision.

1. Refer to STC SA25CE, STC SA166CE and STC SA167CE files for additional supporting data.

2. Woodward Airplane Flight Manual Supplement dated October 11, 1963 or later FAA approved revision is required.

3. Compatibility of this design change with previous modifications must be determined by the installer.

4. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission.

Ontic Engineering and Manufacturing Inc.

20400 Plummer Street Chatsworth, CA 91311 Date of application : August 28, 1963

Date of issuance : October 11, 1963

Date reissued : September 26, 2005, April 30, 2007

( Signature) Thomas A. Enyart Manager, Propulsion Branch Los Angeles Aircraft Certification Office

( Title)

## Every issue (1)

- April 30, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/5f/8a/5f8a7952c018c024d9642308c83253cae1c6645b9a027736f364cc76e6d26361)

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