# STC SE00006EN - Type: Supplemental type certificate - Status: Current, Reissued - Holder: MORE Company Inc, United States - Description: Instructions for Continued Airworthiness for the PT6A-45A, -45B, and, -45R engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. - Applied: September 22, 1994 - Status date: October 4, 2022 - Product: Engine - Certification basis: Part 21, Part 33 - Data sheets: [TCDS E4EA](https://openairdocs.org/tcds/E4EA) - Certificate PDF: https://openairdocs.org/files/sha256/57/e2/57e2786e8c9139bb65c3f80fe2b962f3fdcaed77255fbe16cac99cfd14f8c00f - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID161388122520221017192920.0001 - DRS record last changed: February 25, 2026 - Page: https://openairdocs.org/stc/SE00006EN ## ADs that name it (0) None. ## Approved models (3) - Pratt & Whitney Canada, Inc. PT6A-45A ([TCDS E4EA](https://openairdocs.org/tcds/E4EA)) - Pratt & Whitney Canada, Inc. PT6A-45B ([TCDS E4EA](https://openairdocs.org/tcds/E4EA)) - Pratt & Whitney Canada, Inc. PT6A-45R ([TCDS E4EA](https://openairdocs.org/tcds/E4EA)) ## 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. United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate Number: SE00006EN This certificate issued to: MORE Company, Inc. 5395 Mountain Creek Court Reno, NV 89511 33 of Federal Aviation Regulations . E4EA Make: Pratt & Whitney Canada Model: PT6A-45A, PT6A-45B, PT6A-45R Description of Type Design Change: Instructions for Continued Airworthiness for the PT6A-45A, PT6A-45B and PT6A-45R engine models that define specific maintenance tasks and their associated maintenance schedules, and that are used as a supplement to the applicable Pratt & Whitney Canada manuals. Use of these Instructions for Continued Airworthiness provides for the extension of hot section inspection (HSI), and time between overhaul (TBO) intervals, and supersedes the need for compliance with the HSI, and TBO (Continued on page 3) Limitations and Conditions: PT6A-45A, PT6A-45B and PT6A-45R engines using this Supplemental Type Certificate will be maintained in accordance with Revision 1 of the Maintenance on Reliable Engines (MORE) Instructions for Continued Airworthiness, dated August 25, 1995. (Continued on page 3) Date of Application: September 22, 1994 Date Reissued: October 4, 2022 Date of Issuance: October 19, 1994 Date Amended: October 2, 1995 Title: Manager, ECO Branch, Section B United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate Number: SE00006EN United States of America Department of Transportation Federal AviationAdministration Supplemental Type Certificate (Continuation Sheet) Number: SE00006EN Description of Type Design Change (Continued): intervals defined in Pratt & Whitney Canada PT6A Service Bulletin Number 3303 latest revision. The rotor component service lives defined in Pratt & Whitney Canada PT6A Service Bulletin Number 3002, latest revision, are to be complied with, and are not superseded by the module repair intervals defined in the MORE Program. The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate, the holder shall give the other person written evidence of that permission. ## Every issue (3) - October 4, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/57/e2/57e2786e8c9139bb65c3f80fe2b962f3fdcaed77255fbe16cac99cfd14f8c00f) - October 4, 2022: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/57/e2/57e2786e8c9139bb65c3f80fe2b962f3fdcaed77255fbe16cac99cfd14f8c00f) - March 6, 2009: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/79/79/7979cd27d21835a3c546c87f3ff4aa389f7f139dc5c65e914c2b96252bf8c365) --- 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.