# STC SA4-284

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Raymond M Stits, United States
- Description: BN-1 propeller spinner.
- Applied: September 17, 1957
- Status date: January 1, 1960
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS A-767](https://openairdocs.org/tcds/A-767)
- Certificate PDF: https://openairdocs.org/files/sha256/1a/b6/1ab67b5e030ed6aaa2754cdc766ff1e24d4b536d1df33d00ae523c3f26f75659
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/690512547E9E883F862570CE006F856B.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA4-284

## ADs that name it (0)

None.

## Approved models (1)

- Univair Aircraft Corporation 108 Series ([TCDS A-767](https://openairdocs.org/tcds/A-767))

## What the certificate says

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

FORM ACA-2417 U.S. DEPARTMENT OF COMMERCE Supplemental Type Certificate

1. NAME AND ADDRESS OF APPLICANT Raymond K Stits 3665 Bloomington Blvd Riverside, California Form Approved, Budget Bureau No. 41-R1823 INSTRUCTIONS - Submit in triplicate to local CAA Aviation Safety Agent. Copy will be returned to applicant upon issuance.

Supplemental Type Certificate APPLIED FOR:

AIRCRAFT ENGINE PROPELLER ORIGINAL MODEL DESIGNATION stinson 105, 108-1, 108-2, 108-3 NEWMODEL DESIGNATION (If desired)

3. DESCRIPTION OF CHANGE Installation of Stita model BN-l Propeller Spinner in accordance with Stite Installation Instructione dated 7/15/57.

Applicability Limitation: The approval of this change in Type Design applies basioally to standard Stinson Modele 108, 108-1, 108-2, and 108-3 only.

approval should not be extended to other specific airplanes of this nodel on which other previously approved modifiestions are incorporated, unless it is deterined that the interrelationship between this ohange and any of those other previously approved modifications will introduce no adverse effect upon the airworthiness of that sirplane.

**. WILL DATA BE AVAILABLE FOR SALE OR RELEASE TO OTHER PERSONS? YES NO

• WILL PARTS BE MANUFACTURED FOR SALE (Ref. CAR 1.55)? YES NO

5. SIGNATURE AND TITLE OF APPLICANT SERT. 12, S -7 SIGNATURE Date of Application: TITLE

**6. TO BE COMPLETED BY CAA**

NATURE AND LOCATION OF DATA Stite drawing So, BB-1, Installation Instructione dated 7/16/57, and 119 questionnaire cards on file in Region 4 Feadquarters. These data filed under Aeronce 7AC (STC No. SA4 276). No Airplane Plight Manuel Supplenent required, Certification Basie: CAR S.

Operating Limitations: None ORIGINAL TYPE CERTIFICATE NO. CAA APPROVAL 767 W. A. Klikoff Supplemental Type Certificate NO.

SIGNATURE SA4-284 DATE OF APPROVAL Chief, Aireraft Engineering Division September 26, 1957 TITLE FORM ACA-2417 (7-56) COMM- DC 32484

## Every issue (2)

- January 1, 1960: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1a/b6/1ab67b5e030ed6aaa2754cdc766ff1e24d4b536d1df33d00ae523c3f26f75659)
- September 26, 1957: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/1a/b6/1ab67b5e030ed6aaa2754cdc766ff1e24d4b536d1df33d00ae523c3f26f75659)

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