STC SA02539AK

FAA DRS lists SA02539AK as Current · Amended, held by David A. Stoots, for Textron Aviation 321, Textron Aviation 172A, and Textron Aviation 172B, and 13 more aircraft configurations. Recorded change: Installation of a Continental Aerospace Technologies IO-370CLC1U8 and Hartzell Model HC-C2YR-1N/NG8301,-3, -7 Propeller. Snapshot dated September 3, 2026.

FAA-listed holder

David A. Stoots

Aircraft configurations

FAA revision date

August 31, 2026

FAA status

Current · Amended

Recorded modification

What the FAA record covers

SA02539AK identifies the approval, recorded holder, named aircraft, and modification scope. It does not confirm kit availability, serial-number effectivity, data rights, price, or installation authority.

Applicability

Aircraft named in FAA DRS

Named aircraft: Textron Aviation 321, Textron Aviation 172A, and Textron Aviation 172B, and 13 more aircraft configurations. Confirm the approved model list, serial effectivity, configuration, and certificate revision.

Textron Aviation 3213A11

Textron Aviation 172A3A12 Textron Aviation 172B3A12 Textron Aviation 172C3A12 Textron Aviation 172D3A12 Textron Aviation 172E3A12 Textron Aviation 172F (USAF T-41A)3A12 Textron Aviation 172G3A12 Textron Aviation 172H (USAF T-41A)3A12 Textron Aviation 1753A17 Textron Aviation 175A3A17 Textron Aviation 175B3A17 Textron Aviation 175C3A17 Textron Aviation P172D3A17 Textron Aviation 170AA-799 Textron Aviation 170BA-799

SA00454DEPropellersRevised Sep 26, 2019

Installation of McCauley 2A34C201/90DA-12 propeller.

FAA holder: Tom Laing

View record

SA3326NMPropellersRevised Aug 20, 2019

Install Sensenich Propeller model76EM8S10-0 (60-inch to 63-inch pitch, inclusive) and Gulfstream Aerospace spinner assembly, Kit P/N SK143-2.

FAA holder: Air Mods NW

View record

SR02658LAPropellersRevised Jul 11, 2019

Replacement of the original Pratt and Whitney PT6A-60A engines and propellers with Pratt and Whitney PT6A-67A engines and MT Propeller MTV-227-1-N-C-F-R(P)/CFR260-65b or Hartzell HC-E5A -3A/NC10245B propellers.

FAA holder: Blackhawk Modifications Inc.

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SA04404CHPropellersRevised Jul 9, 2019

Installation of Hartzell Propeller model (P)HC-C3YF-1RF/F8429 in accordance with Hartzell STC Installation Instruction INST-092518 Revision IR dated September 25, 2018 or later FAA Approved revisions. Airplane Flight Manual Supplement AFMS-092518 Revision IR dated September 25, 2018 or later FAA Approved revision is required. Instructions for Continued Airworthiness ICA-092518 Revision IR are applicable.

FAA holder: Hartzell Propeller Inc

View record

FAA record reference

STC number: SA02539AK
Product: Aircraft · Small Airplane
Country: United States
Application date: September 12, 2017
Revision date: August 31, 2026
CFR references: Part 3, Part 21, Part 23

What the FAA record covers

Aircraft named in FAA DRS

Related propellers STCs

Installation of McCauley 2A34C201/90DA-12 propeller.

Install Sensenich Propeller model76EM8S10-0 (60-inch to 63-inch pitch, inclusive) and Gulfstream Aerospace spinner assembly, Kit P/N SK143-2.

Replacement of the original Pratt and Whitney PT6A-60A engines and propellers with Pratt and Whitney PT6A-67A engines and MT Propeller MTV-227-1-N-C-F-R(P)/CFR260-65b or Hartzell HC-E5A -3A/NC10245B propellers.

FAA record reference