# STC SA1199NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Franklin Aircraft Engines Inc., United States
- Description: Installation of a Hartzell HC-C2YF-1BF/F8459A-4 to -8, Hartzell 82A4203 spinner, and associated systems on a Franklin 6A-350-C1 engine.
- Applied: July 1, 1980
- Status date: May 25, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 3A23](https://openairdocs.org/tcds/3A23)
- Certificate PDF: https://openairdocs.org/files/sha256/a5/d0/a5d023a7ad4a81d27bd28dc42fd81f70cdf5514b142fe3b207c81a87af66310a
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1CD483B7395AB76D862588630059065F.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1199NW

## ADs that name it (0)

None.

## Approved models (3)

- Maule Aerospace Technology Inc. Bee Dee M-4-220C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. Bee Dee M-4-220S ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Maule Aerospace Technology Inc. Bee Dee M-4-220T ([TCDS 3A23](https://openairdocs.org/tcds/3A23))

## 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.

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SA1199NW Franklin Aircraft Engines, Inc.

136 Racquette Drive Fort Collins, CO 80524 Part 3 Civil Air Regulations 3A23 Maule M-4-220C, M-4-220S, M-4-220T Installation of a Hartzell Propeller Model HC-C2YF-1BF/F8459A-4 to -8, Hartzell 82A4203 spinner, and associated systems, on a Franklin 6A-350-C1 engine. Required data:

1. Seaplane Flying, Inc., Installation Instructions, Doc. No. SFM4003, dated 3/16/1981, or later FAA Approved revision.

1. Data pertaining to this modification are considered inadequate for duplication in other aircraft.

2. Compatibility of this design change with previously approved modifications must be determined by the installer.

July 1, 1980 2/26/1993, 3/31/1993, 4/27/1995, 5/25/2022 March 23, 1981 Tina Miller Manager, Program Managment Section Wichita ACO Branch (AIR-7K5) 2

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Date oI transfer:

SA1199NW 2

## Every issue (2)

- May 25, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/a5/d0/a5d023a7ad4a81d27bd28dc42fd81f70cdf5514b142fe3b207c81a87af66310a)
- April 27, 1995: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/84/f3/84f3af57aea35bec760adff8d3729f426208a50a74f6ac8c7d6cd562e0f46cb6)

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