# STC SA5-33

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Wilbur Repair Service Marguerite Benson or Anne Wilbur, United States
- Description: Removed unbalanced tail surfaces and installed balanced tail surfaces. Install elevators, Piper P/N
12789-00 and 12789-01 and stabilizers, Piper P/N 12790-00 and 12790-01
- Applied: May 18, 1961
- Status date: October 6, 2022
- Product: Aircraft, Small Airplane
- Data sheets: [TCDS A-691](https://openairdocs.org/tcds/A-691), [TCDS A-725](https://openairdocs.org/tcds/A-725), [TCDS A-780](https://openairdocs.org/tcds/A-780), [TCDS A-797](https://openairdocs.org/tcds/A-797)
- Certificate PDF: https://openairdocs.org/files/sha256/43/05/43056b3addb38c5aaf5dc05333af589a75bc71c31d99818534c7609878b994ea
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID110767709020260930153117.0001
- DRS record last changed: September 30, 2026
- Page: https://openairdocs.org/stc/SA5-33

## ADs that name it (0)

None.

## Approved models (11)

- The New Piper Aircraft Inc. J3C-40 ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. J3C-50 ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. J3C-50S ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. J3C-65 ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. J3C-65S ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. J5A (Army L-4F) ([TCDS A-725](https://openairdocs.org/tcds/A-725))
- The New Piper Aircraft Inc. J5A-80 ([TCDS A-725](https://openairdocs.org/tcds/A-725))
- The New Piper Aircraft Inc. J5C ([TCDS A-725](https://openairdocs.org/tcds/A-725))
- The New Piper Aircraft Inc. PA-11 ([TCDS A-691](https://openairdocs.org/tcds/A-691))
- The New Piper Aircraft Inc. PA-12 ([TCDS A-780](https://openairdocs.org/tcds/A-780))
- The New Piper Aircraft Inc. PA-14 ([TCDS A-797](https://openairdocs.org/tcds/A-797))

## What the certificate says

Read from the PDF's text layer, without the form's printed wording; the layout is lost and the order can differ. The PDF is the record.

United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate 14 CFR 21.120) FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION PAGE 1 OF 2 Number: SA5-33 This certificate issued to:

Removed unbalanced tail surfaces and installed balanced tail surfaces. Install elevators, Piper P/N 12789-00 and 12789-01 and stabilizers, Piper P/N 12790-00 and 12790-01 per Wilbur Repair Service Instruction Sheet Number 1, dated May 18, 1961.

Compatibility of this design change with previously approved modifications must be determined by the installer

Wilbur Repair Service Marguerite Benson or Anne Wilbur PO Box 770744, 21446 Eagle River Road Eagle River, AK 99577 Original Product:

Type Certificate Number: 691, 725, 780, 797 Make: Piper Model: PA-11, PA-12, J3C, J5C, J5A, and PA-14 Date of application: May 18, 1961 Date of issuance: May 18, 1961 Date reissued: June 12, 1997; July 8, 2016;

October 6, 2022 Date amended:

August A. Asay Title: Manager, Anchorage ACO Branch Part 3 and 4a of the Civil Air Regulations.

**14 CFR 21.120)**

FAA Form 8110-2 (06/20) SUPERSEDES PREVIOUS EDITION PAGE 2 OF 2

Number: SA5-33

Transfer Endorsement Transfer the ownership of Supplemental Type Certificate Number: SA5-33

## Every issue (2)

- October 6, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/43/05/43056b3addb38c5aaf5dc05333af589a75bc71c31d99818534c7609878b994ea)
- July 8, 2016: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/86/33/8633a0225129d1ccd40017217c74b2ff85404be5995ff5572b5c4923f846dfdd)

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