# STC SA288CH

- Type: Supplemental type certificate
- Status: Current, Reissued
- Holder: Whelen Aerospace Technologies, United States
- Description: Installation of Hartzell HC-C3YR-1RF/ F7590 propeller and 835-52P spinner.
- Applied: July 7, 1993
- Status date: July 22, 2022
- Product: Aircraft, Small Airplane
- Certification basis: Part 3, Part 21
- Data sheets: [TCDS 1A15](https://openairdocs.org/tcds/1A15)
- Certificate PDF: https://openairdocs.org/files/sha256/13/0f/130fc53c1d6bc7ed1f4b96bab19efd49943078b0fe10ae78c00b1318b11f0566
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7F77723047FD1751862588C3005E630A.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SA288CH

## ADs that name it (0)

None.

## Approved models (1)

- The New Piper Aircraft Inc. PA-24-260 ([TCDS 1A15](https://openairdocs.org/tcds/1A15))

## 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.

Title: (for) Christina M. Underwood Manager, Atlanta ACO Branch Compliance and Airworthiness Division Aircraft Certification Service SA288CH Whelen Aerospace Technologies 51 Winthrop Road Chester, CT 06412 Part 3 Civil Air Regulations 1A15 Piper PA-24-260 Installation of Hartzell HC-C3YR-1RF/F7590 propeller and 835-52P spinner in accordance with LoPresti Speed Merchants Installation Instruction entitled "Hartzell Propeller Installation, Report No. 24", dated September 27, 1993, or later FAA Approved revision.

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

2. FAA Approved Flight Manual Supplement, dated January 30, 1995 or later FAA Approved revision is required. (See Continuation Sheet 3) July 7, 1993 July 22, 2022 January 31, 1995 3

SA288CH 3

SA288CH Original Product Type Certificate Number (Cont.)

(See Aircraft Specification No. 1A15 for complete certification basis)

Limitations and Conditions (Cont.)

3. Aircraft specifications are the same listed on Aircraft Specification No. 1A15 as listed in the FAA Approved Airplane Flight Manual Supplement, dated January 30, 1995 or later FAA Approved revision.

4. See Aircraft Specification No. 1A15 for complete certification basis.

-----------------------------------------------------END-------------------------------------------------------- 3 3

## Every issue (1)

- July 22, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/13/0f/130fc53c1d6bc7ed1f4b96bab19efd49943078b0fe10ae78c00b1318b11f0566)

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