# STC SA01725WI - Type: Supplemental type certificate - Status: Current, Reissued - Holder: A & L Aircraft Parts Inc, United States - Description: Installation of Pratt & Whitney R-985-AN14B or R-985-AN1 engine modified for fuel injection - Applied: June 7, 2005 - Status date: September 25, 2019 - Product: Aircraft, Small Airplane - Certification basis: Part 21 - Data sheets: [TCDS A-806](https://openairdocs.org/tcds/A-806) - Certificate PDF: https://openairdocs.org/files/sha256/ed/92/ed923334d253e7e0ab0a45b26d9457161f306e0bebf8e29bb93e61a752ac5143 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/14EBF7BB35CDD6AC862584B600551C4E.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SA01725WI ## ADs that name it (0) None. ## Approved models (1) - Viking Air Limited DHC-2 Mk.I ([TCDS A-806](https://openairdocs.org/tcds/A-806)) ## 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 Aviation Administration Supplemental Type Certificate  FAA FORM 8110-2(10-68) PAGE 1 of 3 PAGES Number 6$:,  This certificate issued to: $ /$LUFUDIW3DUWV,QF  +Z\1RUWK $LUSRUW5RDG  32%R[   2NPXOJHH2. Part of the &LYLO$LURegulations.  Original Product  Type Certificate Number: $ Make:  9LNLQJ$LU/LPLWHG 'H+DYLOODQG %HDYHU Model:  '+&0N, Description of Type Design Change: ,QVWDOODWLRQRI3UDWW :KLWQH\5$1%RU5$1HQJLQHPRGLILHGIRUIXHOLQMHFWLRQSHU67& 6(:,DQG-3,QVWUXPHQWV(*7'DWDUHTXLUHG 5DGLDO(QJLQHV/WG0DVWHU'UDZLQJ/LVW5HSRUW5(/5HYLVLRQ,5GDWHG)HEUXDU\DQG 5DGLDO(QJLQHV/WG$LUSODQH)OLJKW0DQXDO6XSSOHPHQW5(/5HYLVLRQ,5GDWHG$XJXVW RUODWHU)$$$SSURYHGUHYLVLRQV   Limitations and Conditions: $SSURYDORIWKLVFKDQJHLQW\SHGHVLJQDSSOLHVWRWKHDERYHPRGHODLUFUDIWRQO\ &RPSDWLELOLW\RIWKLVGHVLJQFKDQJHZLWKSUHYLRXVO\DSSURYHGPRGLILFDWLRQVPXVWEHGHWHUPLQHGE\WKHLQVWDOOHU  6HHFRQWLQXDWLRQVKHHW    Date of application: -XQH  Date of issuance: 6HSWHPEHU  Date reissued: 1RYHPEHU0DUFK 6HSWHPEHU  Date amended:   By direction of the Administrator      Original signed by Yvette Emerson   Signature