STC SA01538AT

Supplemental type certificate · Whelen Aerospace Technologies

Holder
Whelen Aerospace Technologies · United States
Status
Current · Reissued
Status date
July 22, 2022
Applied
March 21, 1995
Product
Aircraft · Small Airplane
Certification basis
Part 3, Part 21
Data sheet
TCDS1A15

From FAA DRS, with our copy of the certificate PDF. DRS record last changed December 6, 2025.

What it approves

Installation of Hartzell HC-C3YR-1RF/F7590 or HC-C2YK-1A or HC-C2YK-1B propellers.

What the certificate says

From the PDF’s text layer, without the form’s printed wording. Layout and order may differ; the PDF is the record.

Title: (for) Christina M. Underwood Manager, Atlanta ACO Branch Compliance and Airworthiness Division Aircraft Certification Service SA01538AT Whelen Aerospace Technologies 51 Winthrop Road Chester , CT 06412 Part 3 Civil Air Regulations 1A15 Piper PA-24-250 Installation of Hartzell HC-C3YR-1RF/F7590 or HC-C2YK-1A or HC-C2YK-1B propellers as documented in the LoPresti Speed Merchants "Comanche 250 Propelloer Conversion Installation Innstructions" Report No. 007, Rev IR, August 12, 1997 or later FAA Approved Reviosions and one of the modified Lycoming engines per STC SE01537AT.

The installer must determine whether this design change is compatible with previously approved modifications. LoPresti Speed Merchants "FAA Approved Flight Manual Supplemen for Comanche 250 Propeller Conversion (Report No. 006)" Rev IR dated December 31, 1997 is required. If the holder agrees to permit a person to use this certificate to alter a product, the holder must (See Continuation Shhet 3) March 21, 1995 January 16, 2019; July 22, 2022 December 31, 1997 3

SA01538AT 3

SA01538AT Limitations and Conditions (Cont.)

give this person the other person written evidence of that permission.

ADs that name this STC · 0

An AD can apply because an STC is installed, or mention one in its text.

No AD in this release names this STC

Approved models · 1

MakeModelData sheet
The New Piper Aircraft Inc.PA-24-2501A15

Every issue · 2

DRS keeps each issue of an STC as its own record, with its own certificate and attachments.

DateStatusFiles
July 22, 2022Reissued, currentCertificate
January 16, 2019Reissued, earlier issueCertificate