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No. of STCs: 3

STC Holder: Blackhawk Modifications LLC 7601 Karl May Drive, Waco, TX 76708-5570, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA02658LA	Status: Current	App Date: 10/03/2016	Rev Date: 12/10/2025
Description: Replacement of the original Pratt and Whitney PT6A-60A engines and propellers with Pratt and Whitney PT6A-67A engines and MT Propeller MTV-27-1-N-C-F-R(P)/CFR260-65b propellers
TC Nos.: A24CE
Models: Textron Aviation Inc.300, 300LW, B300, B300C
ACO: AIR-770: West Certification Branch LA

STC Holder: Blackhawk Modifications LLC 7601 Karl May Drive, Waco, Texas 76708		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12179DE	Status: Current	App Date: 04/12/2024	Rev Date: 09/30/2025
Description: Replacement of the original Pratt and Whitney PT6A-64 engine with a Pratt and Whitney PT6A-66D engine
TC Nos.: A60EU
Models: Daher AerospaceTBM 700
ACO: AIR-770: West Certification Branch DEN

STC Holder: Blackhawk Modifications LLC 7601 Karl May Drive Waco, Texas 76708		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA12399LA	Status: Current	App Date: 11/14/2025	Rev Date:
Description: Replacement of the original Starter-Generator with an Ametek MG94K-1 or MG94K-2
TC Nos.: A60EU
Models: Daher Aircraft SASTBM 700
ACO: AIR-770: West Certification Branch LA