# STC SA931NW

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Portland City Temple, United States
- Description: Installation of Hayes Industries tapered axles to accommodate Hayes 27 inch wheel assemblies (PN G31A), Hayes 11 x 2 brake assembly (PN H-12-19), Warner Aircraft brake master cylinders (PN 3150-5) and associated tires and plumbing
- Applied: March 27, 1980
- Status date: April 21, 1980
- Product: Aircraft, Small Airplane
- Certification basis: Part 21
- Data sheets: [TCDS ATC 129](https://openairdocs.org/tcds/ATC%20129)
- Certificate PDF: https://openairdocs.org/files/sha256/c1/95/c195be0dbfff020b851f1a7dd5fce667f841ba062e5267d221e27fb8daf021bf
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/908CE6990EA7235C86257A3F0053C421.0001
- DRS record last changed: December 5, 2025
- Page: https://openairdocs.org/stc/SA931NW

## ADs that name it (0)

None.

## Approved models (1)

- Bellanca Aircraft Corporation CH-300 Pacemaker ([TCDS ATC 129](https://openairdocs.org/tcds/ATC%20129))

## 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: SA931N8 This certificate issued to: Portland City Temple Purt * of the Regulations. * Aeronautics Bulletin Number 7.

Original Product - Type bertificate Number: ATC 129 Make: Bellanca Model: CH-300 Pacemaker Description of Type Design Change: Installation of Hayes Industries tapered axles to accommodate Hayes 27 inch wheel assemblies (PN G31A), Hayes 11 X 2 brak assembly (PN H-12-19), Warner Aircraft brake master cylinders (PN 3150-5) and associated tires and plumbing in accordance with Portland City Temple sketch No. 1001.

timilalins andbenditina: Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation in Bellanca, CH-300 Pacemaker, Serial Number 154 only. A copy of this Certificate shall be maintained as part of the permanent records for the modified aircraft.

## Every issue (1)

- April 21, 1980: Issued, Current. [certificate](https://openairdocs.org/files/sha256/c1/95/c195be0dbfff020b851f1a7dd5fce667f841ba062e5267d221e27fb8daf021bf)

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