# STC SH5695SW - Type: Supplemental type certificate - Status: Current, Amended - Holder: Petroleum Helicopters Inc, United States - Description: Installation of Allison 250-C30P engine. - Applied: January 24, 1984 - Status date: December 8, 1988 - Product: Aircraft, Rotorcraft - Data sheets: [TCDS H2SW](https://openairdocs.org/tcds/H2SW) - Certificate PDF: https://openairdocs.org/files/sha256/c8/ef/c8ef96d19ecd2ef77c258e841e3db0c746381fbe8a76709d54f1812f6d7011ac - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1DF9960AA862F76486258610003B45E4.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SH5695SW ## ADs that name it (0) None. ## Approved models (1) - Bell Helicopter Textron (Canada) 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) ## 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. 1lnittd ~ma .r Sbma Brpartmtnt of 1t:ran.sportation -.f rdrral S!biation S!dminiStration ~upplcmcntal 1t~pc ~crtificatc ~ SH5695SW 170- TM Petroleum Helicopters Inc. P. o. Box 90808 Lafayette, La 70509 ~,04/~~,nud;,,,/k~~~f%,.t 6 ~/k Civil Air ~ H2SW ~~~~~ .. J/ak ... Bell ~ .. 206L-1 ~~~~~~~; Installation of Allison 250-C30P engine in accordance with Petroleum Helicopters, Inc., Report No. 206L-1 C30P, Revision B dated 10/16/88 or later FAJl~ approved revision. FAA Approved Helicopter Flight Manual Supplement dated 1 April 16, 1984, or later FAA approved revision is required. Compatibility of this modification with previously installed equipment must be determined by installer. ~~~.and.-