# STC SP04133CH

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Wipaire Inc, United States
- Description: Installation of pitch locks
- Applied: December 18, 2015
- Status date: September 6, 2016
- Product: Propeller
- Certification basis: Part 21, Part 35
- Data sheets: [TCDS P3NE](https://openairdocs.org/tcds/P3NE)
- Certificate PDF: https://openairdocs.org/files/sha256/1a/e5/1ae5f38f140b228f2378991e6f13ab12c860dd93ccc0b4d2e35179c97d406c38
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/AB7D660B5F644FEB862580280070656C.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SP04133CH

## ADs that name it (0)

None.

## Approved models (1)

- McCauley Propeller Systems 4HFR34C ([TCDS P3NE](https://openairdocs.org/tcds/P3NE))

## 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.

Part 35 of the Federal Aviation Regulations. (See Type Certificate Data Sheet No. P3NE for complete certification basis)

Installation of pitch locks in accordance with Wipaire, Inc. Installation Instruction, Document No. 1008767, Revision C, dated June 17, 2016, or later FAA approved revisions.

1. The installer must determine whether this design change is compatible with previously approved modifications.

2. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

Wipaire, Inc.

1700 Henry Avenue - Fleming Field South St. Paul, MN 55075 P3NE Make : McCauley Propeller Systems Model : 4HFR34C778 Date of application : December 18, 2015

Date of issuance : September 06, 2016

(Signature) Karol Mordasiewicz Manager, Airframe & Administrative Branch Chicago Aircraft Certification Office

(Title)

Original signed by:

Gregory J. Michalik

FAA FORM 8110-2-1(10-69) PAGE 2 of 2 PAGES

Number

## Every issue (1)

- September 6, 2016: Issued, Current. [certificate](https://openairdocs.org/files/sha256/1a/e5/1ae5f38f140b228f2378991e6f13ab12c860dd93ccc0b4d2e35179c97d406c38)

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