# STC SA12179DE - Type: Supplemental type certificate - Status: Current, Issued - Holder: Blackhawk Modifications LLC, United States - Description: Replacement of the original Pratt and Whitney PT6A-64 engine with a Pratt and Whitney PT6A-66D engine - Applied: April 12, 2024 - Status date: September 30, 2025 - Product: Aircraft, Small Airplane - Certification basis: Part 23 - Data sheets: [TCDS A60EU](https://openairdocs.org/tcds/A60EU) - Certificate PDF: https://openairdocs.org/files/sha256/0b/c2/0bc2696e920c3476abdc749995d42818f090b8b52214032e00c3a9425bec1b47 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID134923611620251001163028.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA12179DE ## ADs that name it (0) None. ## Approved models (1) - Daher Aerospace TBM 700 ([TCDS A60EU](https://openairdocs.org/tcds/A60EU)) ## 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. Date Reissued: Date of Application: April 12, 2024 Date of Issuance: September 30, 2025 Date Amended: SA12179DE Blackhawk Modifications LLC 7601 Karl May Drive Waco, Texas 76708 Part 23 Title 14, Code of Federal Regulations A60EU Daher Aerospace TBM 700 The installer must determine whether this design change is compatible with previously approved modifications. The installation should not be incorporated in an aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the airworthiness of the aircraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. (Continued on page 3) 3 Replacement of the original Pratt and Whitney PT6A-64 engine with a Pratt and Whitney PT6A-66D engine in accordance with FAA approved Master Drawing List 202106-000 revision A dated February 18, 2025 or later FAA approved revisions. Instructions for Continued Airworthiness are contained in document number 202106-10 revision IR dated March 1, 2025 or later FAA accepted revisions. (Continued on page 3) SA12179DE 3 SA12179DE Description of Type Design Change continued: The following Pilot’s Operating Handbook and FAA Approved Airplane Flight Manual Supplements, or later FAA Approved revisions are required. Document Number Revision Date 202106-07 IR September 16, 2025 - This modification is eligible only on TBM 700 in the following serial number range: 1-345. - This modification has been shown to be compatible with both the existing factory installed Engine Instrument System (EIS) and the Garmin International, Inc. model G600 Engine Instrument System (EIS) installed in accordance with Garmin STC SA02571SE. Certification Basis: The certification basis for this modification is the same as the basic aircraft as outlined in FAA TCDS A60EU with the following exceptions: 14 CFR part 23 sections 23.201, and 23.203 as amended through 23-62; 23.207 as amended through 23-50; 23.1359, and 23.1365 as amended through 23-49; 23.1309 as amended through 23-41; 14 CFR part 34 as amended through 34-5A; 14 CFR part 36 as amended through 36-31. --------------------------------------END-------------------------------------- ## Every issue (1) - September 30, 2025: Issued, Current. [certificate](https://openairdocs.org/files/sha256/0b/c2/0bc2696e920c3476abdc749995d42818f090b8b52214032e00c3a9425bec1b47) --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.