# STC SA291NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Coriell, Kenneth, United States
- Description: Installation of a Jacobs R-755-9 engine and a Hamilton Standard 2B20/6135-15 propeller
- Applied: August 25, 1975
- Status date: May 14, 1976
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-707](https://openairdocs.org/tcds/A-707)
- Certificate PDF: https://openairdocs.org/files/sha256/66/93/6693eda0b7116715fa00219b29d1bf42fb4c6a5e8af9a060b1032641003e60c7
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/610946033FE9EF4F86257AD40071D0D3.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA291NW

## ADs that name it (0)

None.

## Approved models (1)

- Fairchild Personal Planes Division Fairchild Engine and Airplane Corp. 24W-40 (Army UC-61G) ([TCDS A-707](https://openairdocs.org/tcds/A-707))

## What the certificate says

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

Enited States of 2lmerica Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA2920w This certificate issued to: Mr. Kenneth Corie11 Purt 4a s$ the CiViI Air Regulalions: dated Apri1 1950 Original Product - Type bertificate Nunber: A-707 Make: Fairchild Model: 24W4O through 8. tandard 2B20/6135-15 propeller in accordance with Kenneth Coriell photographs. Description of Type Design Change: Installation of a Jacobs R-755-9 engine and a Hamilton for duplication on other aircraft. This approval is limited to the installation in Fairchild 24W40, Serial Number 129 only. A copy of this Certificate and Addendum No. SA291NW shall be maintained as part of the permanent records for the modified aircraft. Limilalins and fundilion: Data pertaining to this modification are considered inadequate

L'ule sf application: August 25, 1975 Bute wissued:

Date of Issuance: May 14, 1976 Date Amended:

FEDERAL NUTATION By Direction of the Administrator TOMINISTRANO Acting Chief, Engineering and Manufacturing Franch Д.К Reggen Збіднине) ( Title) 47

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: SA2911W Supplemental Type Certificate ADDENDUM NO. SA291NW The condition and limitation of Type Certificate Data Sheet Number A-707 apply except where superseded by the following:

Supplemental Type Certificate Data Sheet, which is part of SIC SA291NW prescribes the conditions and limitations under which the product for which the STC was issued meets the airworthiness requirements of the Federal Aviation Regulations:

Supplemental Type Certificate HOLDER: Kenneth Coriell I. FAIRCHILD 24W4O(LAND PLANE - NORMAL CATEGORY) AS MODIFIED BY STC SA291NW Ingine: Jacobs R-755-9 (I-4MB/T.C. 121) Engine Limits: For all operations: 2000RPM (225 HP) Fuel: Minimum grade: 80/87 Octane Propeller: Hamilton Standard 2B20/6135-15 Propeller Limits: 2530 RPM (385 HP) Serial Number Eligible: Serial Number 129 only Air Speed Limits: Same as specified Maximum Weight: Same as specified Powerplant Instrument Markings: Same as specified Airspeed Markings: Same as specified Placards: A placard must be added to the instrument panel in full view of the pilot:

Take off Horsepower - 245 HP @ 2200 RPM S.L.

for 1 minute and thereafter 200 HP @ 1950 RPM"

- IND - 47 PAGE 3 OF 3 PAGES FAA AC 72-4435

## Every issue (1)

- May 14, 1976: Issued, Current. [certificate](https://openairdocs.org/files/sha256/66/93/6693eda0b7116715fa00219b29d1bf42fb4c6a5e8af9a060b1032641003e60c7)

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