# STC SA906NW

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Franklin Aircraft Engines Inc., United States
- Description: Installation of additional Harrison oil cooler and associated systems.
- Applied: January 29, 1980
- Status date: May 25, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 21, Part 33
- Data sheets: [TCDS 3A23](https://openairdocs.org/tcds/3A23), [TCDS A-767](https://openairdocs.org/tcds/A-767)
- Certificate PDF: https://openairdocs.org/files/sha256/cd/69/cd69c2f01a39dad905104fb3678e642564af41d3e09c2a2122121af9c5f249de
- Approved model list and other attachments: [SA906NW_AML.pdf](https://openairdocs.org/files/sha256/a6/77/a67774b981d43863784b64a6212cbbf11edc33b56000202001a46b12220aa8b6)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F22C095E891253F386258863005844E9.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA906NW

## ADs that name it (0)

None.

## Approved models (5)

- Maule Aerospace Technology Inc. M-4-220C ([TCDS 3A23](https://openairdocs.org/tcds/3A23))
- Univair Aircraft Corporation 108 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-1 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-2 ([TCDS A-767](https://openairdocs.org/tcds/A-767))
- Univair Aircraft Corporation 108-3 ([TCDS A-767](https://openairdocs.org/tcds/A-767))

## 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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Original Product 7\SH&HUWLILFDWH1XPEHU Make:

SA906NW Franklin Aircraft Engines, Inc.

136 Racquette Drive Fort Collins, CO 80524 Part 33 Federal Aviation Regulations See attached FAA AML SA906NW, for list of approved models and applicable AW regulations.

Installation of additional oil cooler and associated systems. See attached FAA Aircraft Model List (AML) No.

SA906NW for aircraft makes, models and required data.

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.

January 29, 1980 2/26/1993, 3/31/1993, 4/27/1995, 5/25/2022 March 31, 1980 April 6, 1999 Tina Miller Manager, Program Managment Section Wichita ACO Branch (AIR-7K5) 2

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Too (Name and address of transferee):

Date oI transfer:

SA906NW 2

### SA906NW_AML.pdf

**FAA APPROVED MODEL LIST (AML) NO. SA906NW**

Franklin Aircraft Engines, Inc.

Installation of Additional Oil Cooler

Page 1 of 1 Item Aircraft Make Aircraft Model TCDS Cert Basis / Amendment AFMS Revision / FAA Approved Date Drawing List Revision* / FAA Approved Date Initial Approval Date Amendment Date 1 UNIVAIR (Stinson) 108, 108-1, 108-2, 108-3 A-767 CAR 3 N/A Kit No. SF 10804, Rev. B 3/21/1980 4/6/1999 2 MAULE M-4-220C 3A23 CAR 3 (dated 5/15/56) N/A Kit No. SF M4005, Rev. B 3/21/1980 4/6/1999 *Or later FAA Approved revision

FAA Approved:

Tina Miller Manager, Program Management Section Wichita ACO Branch (AIR-7K5)

Date Reissued: 2/26/1993, 3/31/1993, 4/27/1995, 5/25/2022

## Every issue (3)

- May 25, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/cd/69/cd69c2f01a39dad905104fb3678e642564af41d3e09c2a2122121af9c5f249de), [SA906NW_AML.pdf](https://openairdocs.org/files/sha256/a6/77/a67774b981d43863784b64a6212cbbf11edc33b56000202001a46b12220aa8b6)
- September 5, 2001: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/e3/37/e337322bff93921beaeaaaf2e035a2198f48e44a9f6b6ee70d7dd50a37fd25f4), [SA906NW_AML.pdf](https://openairdocs.org/files/sha256/f1/c9/f1c978048d19cce9ec65e8dc884f91ee4075bbc2ac334e5674dc87d2cd8f3c65)
- April 6, 1999: Amended, Historical. [certificate](https://openairdocs.org/files/sha256/e3/37/e337322bff93921beaeaaaf2e035a2198f48e44a9f6b6ee70d7dd50a37fd25f4)

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