# STC SA02546LA - Type: Supplemental type certificate - Status: Current, Issued - Holder: Blackhawk Modifications Inc., United States - Description: Replacement of the original Pratt and Whitney PT6A-114(A) engine and propeller with a Pratt and Whitney PT6A-140 and 3-blade Hartzell Propeller HC-B3TN-3AF(Y)/T10890CN(K)-2, also Ametek MG94K-2 325 AMP Starter Generator, Howell Instruments powerplant indicating system, and associated equipment - Applied: June 30, 2014 - Status date: October 15, 2015 - Product: Aircraft, Small Airplane - Certification basis: Part 21, Part 23, Part 34, Part 36 - Data sheets: [TCDS A37CE](https://openairdocs.org/tcds/A37CE) - Certificate PDF: https://openairdocs.org/files/sha256/90/38/9038b79bdd02fd2a56cba0c6058cc25d9d9919b5644e3f25ce47a75aeb258cff - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4A6D9D023644BA5186257EE700468A67.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA02546LA ## ADs that name it (0) None. ## Approved models (2) - Textron Aviation Inc. 208 ([TCDS A37CE](https://openairdocs.org/tcds/A37CE)) - Textron Aviation Inc. 208B ([TCDS A37CE](https://openairdocs.org/tcds/A37CE)) ## 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. This Certificate issued to Blackhawk Modifications Inc. 7601 Karl May Drive Waco, Texas 76708 Part 23* of the Federal Aviation Regulations. *Certification basis set forth on continuation sheet 2 Original Product Type Certificate Number : A37CE Cessna 208, 208B Description of Type Design C hange: Replacement of the original Pratt and Whitney PT6A-114(A) engine and propeller with a Pratt and Whitney PT6A -140 and 3 -blade Hartzell Propeller HC -B3TN-3AF(Y)/T10890CN(K)-2, also Ametek MG94K -2 325 AMP Starter Generator, Howell Instruments powerplant indicating system , and associated equipment in accordance with FAA Approved Master Drawing List 201321-000, Rev IR, dated April 6, 2015, or later FAA approved revisions , Pilot’s Operating Handbook and FAA Approved Airplane Flight Manual Supplement s, AFMS 201321-208, Rev IR, dated October 09, 2015, or 201321-208B, Rev IR, dated October 09, 2015 or later FAA approved revisions. Instructions for Continued Airworthiness are contained in document ICA 201321- 30, Rev IR , dated August 2015, or later. Limitations and Conditions: The installation should not be incorporated in any aircraft unless it is determined that the interrelationship between this installation and any previously approved configuration will not introduce any adverse effect upon the ai rworthiness of that aircraft . The approval of this modification applies to the above -noted airplane models only. 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) Date of application : June 30, 2014 Date of issuance : October 15, 2015 (Signature) Manager, Propulsion Branch Los Angeles Aircraft Certification Office (Ti l ) Number SA02546LA Limitations and Conditions (continued) • This modification is not compatible with Cessna Model 208, Serial Number 20800500 and greater or Cessna Model 208B Serial Number 208B1190, 208B1216, and 208B2000 and greater (Garmin 1000 installations) and aircraft equipped with TKS installation Certification Basis The certification basis for this modification is as follows: 14 CFR part 23 of the Federal Aviation Regulations effective February 1, 1965, as amended by Amendments 23-1 through 23-62 for 23.1, 23.25, 23.29, 23.33, 23.45, 23.53, 23.63, 23.65, 23.69, 23.75, 23.77, 23.143, 23.145, 23.161, 23.171, 23.173, 23.175, 23.177, 23.201, 23.203, 23.207, 23.251, 23.301, 23.303, 23.305, 23.307, 23.361, 23.363, 23.601, 23.603, 23.605, 23.607, 23.609, 23.611, 23.613, 23.619, 23.625, 23.627, 23.629, 23.863, 23.865, 23.901, 23.903, 23.905, 23.907, 23.925, 23.929, 23.933, 23.937, 23.939, 23.943, 23.993, 23.997, 23.1011, 23.1017, 23.1021, 23.1023, 23.1027, 23.1041, 23.1043, 23.1045, 23.1091, 23.1093, 23.1103, 23.1121, 23.1123, 23.1141, 23.1143, 23.1145, 23.1149, 23.1153, 23.1155, 23.1163, 23.1165, 23.1183, 23.1193, 23.1301, 23.1305, 23.1309, 23.1351, 23.1353, 23.1357, 23.1359, 23.1361, 23.1365, 23.1367, 23.1519, 23.1529, 23.1541, 23.1549, 23.1581, 23.1583, 23.1585, 23.1587, except 23.1419 as amended by 23-1 through 23-14. 1. Special Condition 23-ACE-3, Dynamic Evaluation, Engine Installation. Factors from this special condition were incorporated into the whirl mode flutter analysis per 14 CFR 23.629(a)(b)(c)(e)(1) and (2). 2. Title 14 CFR 34, effective January 1, 1994, as amended by Amendment 34-0. 3. Title 14 CFR 36, effective December 1, 1969, as amended through Amendment 36-30. -END- ## Every issue (1) - October 15, 2015: Issued, Current. [certificate](https://openairdocs.org/files/sha256/90/38/9038b79bdd02fd2a56cba0c6058cc25d9d9919b5644e3f25ce47a75aeb258cff) --- 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.