# STC SA1674NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Forrest D. Huiatt, United States
- Description: Installation of a Continental C85-12F engine and a McCauley 1B90/CM7143 propeller
- Applied: May 10, 1982
- Status date: September 17, 1982
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-759](https://openairdocs.org/tcds/A-759)
- Certificate PDF: https://openairdocs.org/files/sha256/4e/88/4e88cb96fd2013f698682bcebf8b969df6b37b2c98203705c563381ef46b3497
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/89865F60BE953200862579FB004D0468.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA1674NM

## ADs that name it (0)

None.

## Approved models (1)

- American Champion Aircraft Corp. 7AC ([TCDS A-759](https://openairdocs.org/tcds/A-759))

## What the certificate says

This is OCR from the scanned FAA certificate. OCR can misread letters and numbers.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA167401 This certificate issued to: Forrest D. Huiatt Part 4(2) of the CIVII Air regulations.

Original Product - Type bertificato Number: A-759 Make: Bellanca (Champion) (Aeronca) Model: 7AC Description of Type Design Change: Installation of a Continental 085-12: engine and a McCauley 1B90/CM7143 propeller in accordance with Forrest D. Huiatt photographs 1 through 3.

Limitations and Conditions: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Bellanca 7AC, Serial Number 7AC-2154 only. A copy of this Certificate and Addendum No. SAl674NM shall be maintained as part of the permanent records for the modified aircraft.

Date of Application: May 10, 1982 Date Reissued:

Date of Issuance: September 17, 1982 Date Amended:

By Direction of the Administrator DanilM Pederan actmanager, seatele trea hireratt ( Signature ) TAMIN STRATOR Certification Office, ANM-100S (Tille)

47.

## Every issue (1)

- September 17, 1982: Issued, Current. [certificate](https://openairdocs.org/files/sha256/4e/88/4e88cb96fd2013f698682bcebf8b969df6b37b2c98203705c563381ef46b3497)

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