# STC SA2443WE

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: UFO Inc, United States
- Description: Installation of the McCauley 1A175-DM-8040 propeller on Cessna 170B aircraft with Continental O-300 engines
- Applied: October 26, 1971
- Status date: December 10, 1971
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-799](https://openairdocs.org/tcds/A-799)
- Certificate PDF: https://openairdocs.org/files/sha256/c6/46/c646ff6b2c1c0bd4bbb424b40eae349b8338f4fc53cb74030cd3950628f0051b
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4C57DB062255598886257A24006C1B68.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA2443WE

## ADs that name it (0)

None.

## Approved models (1)

- Cessna Aircraft Company 170B ([TCDS A-799](https://openairdocs.org/tcds/A-799))

## What the certificate says

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

А 4598 ше -5 United States of America Departmen Transportation Federal Aviation Administration Supplemental Type Certificate Number 5A21137 This certificate issued to: U.F. O. Inc.

Route 5, Box 4631 Issaquah, Washington 98027 Part 3 of the Civil Air Regulations.

Original Product -Type bertificate Number: A-799 Make: Ces sna Mirtel: 170B Jescriplin / Jype Jesign thange: Installation of the McCauley 1A175-DM/8040 with McCauley propeller installation instructions. propeller on Cessna 170B aircraft with Continental 0-300 engines in accordance is required. A copy of FAA Approved Flight Manual Supplement UFO-1, dated 10 December 1971, Limitations and Conditions: A copy of this certificate shall be maintained as part of the permanent records for each aircraft so modified.

of this aircraft. approved modifications will introduce no adverse effect upon the airworthiness the interrelationship between this change and any of those other previously be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that with the provisions of T.C. A-799. applies basically to the above model aircraft only. This approval should not The engine installation must be installed in accordance The approval of this change in type design

Julerf application: 26 October 1971 Date Reissued:

Date of Issuance: 10 December 1971 Date Amended:

FEDERAL AVIATION By Direction of the Administrator TO MINISTRATO (Signature ) Acting Chief, Aircraft Engineering Field Office-46 Any alteration of this certificate is punishable by a fine of not exceeding $1,000, or imprisonment not exceeding 3 vears, or both ( Title) FAA FOL 8110-2 (10-68) The chate may be transfere in an + S4 & ED

## Every issue (1)

- December 10, 1971: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c6/46/c646ff6b2c1c0bd4bbb424b40eae349b8338f4fc53cb74030cd3950628f0051b)

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