# STC SA3509NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Don Nelson, United States
- Description: Removal of Ventral Fin
- Applied: October 23, 1985
- Status date: June 12, 1986
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS ATC 530](https://openairdocs.org/tcds/ATC%20530)
- Certificate PDF: https://openairdocs.org/files/sha256/02/0b/020b2567e8819f95815d452124b9245fc96aacdba615623faf574a39af35b5d3
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DA3F4A570300B2D2862579F800681A1A.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA3509NM

## ADs that name it (0)

None.

## Approved models (1)

- Consolidated Vultee Aircraft Corporation, Stinson Division SR-5A (Army L-12) ([TCDS ATC 530](https://openairdocs.org/tcds/ATC%20530))

## 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 SA3509NM This certificate issued to: DON Nel sOn Part * of the * Regulations.

Original Product - Type Certificate Number: ATC 530 Make: Stinson Model: SR -5A Description of Type Design Change:

Removal of Ventral Fin.

Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Stinson SR-5A Serial Number 9256A only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

NOTE: The aft center of gravity for this modification is limited to 23.0 inches.

Date of Application: October 23, 1985 Date Reissued:

Date of Issuance: June 12, 1986 I ate umonded:

FEDERAL AVIATION By Direction of the Administrator TOMINISTRATO Acting Manager, Sea etle Aircraft Certification Office (Title) 47 FAA FORM 8110-2 (10-68)

## Every issue (1)

- June 12, 1986: Issued, Current. [certificate](https://openairdocs.org/files/sha256/02/0b/020b2567e8819f95815d452124b9245fc96aacdba615623faf574a39af35b5d3)

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