# STC SA09632AC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: MT- Propeller Entwicklung GmbH, Germany
- Description: Installation of the hydraulically controlled variable pitch 3-blade MTV-9-B/190-18b propeller in accordance with installation instruction No. E-551-E dated July 19, 2002, or later FAA approved revision.  FAA approved Airplane Flight Manual Supplement, E-842-E, dated September 29, 2004, or later approved revision is required.
- Applied: August 28, 2002
- Status date: October 4, 2004
- Product: Aircraft, Large Multi-Engine
- Certification basis: Part 21, Part 23
- Data sheets: [TCDS A12SO](https://openairdocs.org/tcds/A12SO)
- Certificate PDF: https://openairdocs.org/files/sha256/65/08/65087095249b39305fb73cfbcc7a4e3b62059ccde9e92f2f5c420d1fe23f4c1d
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6B72517DF537398F86256F32006DAB7A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA09632AC

## ADs that name it (0)

None.

## Approved models (3)

- Commander Aircraft Company 114 ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Company 114A ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))
- Commander Aircraft Company 114B ([TCDS A12SO](https://openairdocs.org/tcds/A12SO))

## 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.

ST1920AC-A RAO -150 Number SA09632AC This Certificate issued to MT-Propeller Entwicklung GmbH Flugplatzstr. 1 94348 Atting, GERMANY

Part 23 of the Federal Aviation Regulations.

A12SO Original Product Type Certificate Number:

Make: Commander 114; 114A; 114B Model:

Description of Type Design Change: Installation of the hydraulically controlled variable pitch 3-blade MTV-9-B/190-18b propeller in accordance with installation instruction No. E-551-E dated July 19, 2002, or later FAA approved revision. FAA approved Airplane Flight Manual Supplement, E-842- E, dated September 29, 2004, or later approved revision is required.

Limitations and Conditions: Compatibility of this design change with previously approved modifications must be determined by the installer. 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.

This certificate and the supporting data, which is the basis for approval, shall remain in effect until surrendered, suspended, revoked or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

( Signature) Michele M. Owsley Manager, Airplane Certification Office, Southwest Region

(Title) Date of application: August 28, 2002

Date of issuance: October 4, 2004

FAA Form 8110-2-1(10-69) Page 2 of 2

## Every issue (1)

- October 4, 2004: Issued, Current. [certificate](https://openairdocs.org/files/sha256/65/08/65087095249b39305fb73cfbcc7a4e3b62059ccde9e92f2f5c420d1fe23f4c1d)

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