# STC SA1535NM

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Univair Aircraft Corp, United States
- Description: Installation of stamped aluminum wing ribs.
- Applied: February 22, 1983
- Status date: February 25, 1983
- Product: Aircraft, Single-Engine
- Certification basis: Part 21
- Data sheets: [TCDS A-780](https://openairdocs.org/tcds/A-780)
- Certificate PDF: https://openairdocs.org/files/sha256/e6/f6/e6f69c3a39d3df5982a0dcca0c3428290364e5b91a71c6568931375892856660
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C412BD4466A19C7485256CC1008212D6.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA1535NM

## ADs that name it (0)

None.

## Approved models (2)

- FS 2003 Corp. PA-12 ([TCDS A-780](https://openairdocs.org/tcds/A-780))
- FS 2003 Corp. PA-12S ([TCDS A-780](https://openairdocs.org/tcds/A-780))

## What the certificate says

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

A8464m0-5 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1535 MM This certificate issued to: Univair Aircraft Corp.

Route 3, Box 59 Aurora, Colorado 80011 Part 3 of the IVil Air Regulations.

Original Product -Type bertificater Number: A-780 Make: Piper Model: PA-12, PA12S Description of Type Design Change:

Installation of stamped aluminum wing ribs in accordance with Univair's 'Application Chart Univair Replacement Rib Cross Reference to Piper Original Rib" FAA approved February 25, 1983 or subsequent FAA approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the interrelationship between this change and any of those previously approved modifications will introduce no adverse effect upon the airworthiness of the

Date sapplicatim: February 22, 1983 Suede missued:

Date of Issuance: February 25, 1983 I ate unended:

FEDERAL AVIATION By Direction of the Administrator Make: . Baldurin TAMINISTRAIO Menter Baldaft (side ation Field Office Denver Northwest Mountain Region, Aurora, Colorado (Title)

## Every issue (1)

- February 25, 1983: Issued, Current. [certificate](https://openairdocs.org/files/sha256/e6/f6/e6f69c3a39d3df5982a0dcca0c3428290364e5b91a71c6568931375892856660)

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