# STC SR11256DS - Type: Supplemental type certificate - Status: Current, Issued - Holder: Bell Textron Inc., United States - Description: Installation of 2nd GIA - Applied: March 11, 2025 - Status date: February 5, 2026 - Product: Aircraft, Rotorcraft - Certification basis: Part 27 - Data sheets: [TCDS R00008RD](https://openairdocs.org/tcds/R00008RD) - Certificate PDF: https://openairdocs.org/files/sha256/31/b5/31b5ba11bdb46f2128a77960e7bb1c084bf392381cef58539911e5fb19da7445 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID157218041320260312144117.0001 - DRS record last changed: May 26, 2026 - Page: https://openairdocs.org/stc/SR11256DS ## ADs that name it (0) None. ## Approved models (1) - Bell Helicopter Textron Canada Limited 505 ([TCDS R00008RD](https://openairdocs.org/tcds/R00008RD)) ## 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 Number This certificate issued to: SR11256DS Bell Textron Inc. 441 Industrial Park Road Piney Flats, TN 37686 Part 27 Title 14, Code of Federal Reguations R00008RD Bell Textron Canada Limited 505 See Continuation Sheets 2 and 3. 03/11/2025 02/05/2026 Eric W. Nottorf, ODA Lead administrator BTI ODA-710621-SW 5 Installation of 2nd GIA in accordance with Master Drawing List, Report No. AA-25019, Revision E, dated September 15, 2025, or later FAA approved revision. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number Date o transfer: SR11256DS 02/05/2026 5 United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SR11256DS 02/05/2026 Continuation Sheet 1 of 3 Description of Type Design Change (continued): Aeronautical Accessories Rotorcraft Flight Manual Supplement, Report No. AA-25028, No Revision, dated December 2, 2025, or later FAA approved revision, is required. Aeronautical Accessories Instructions for Continued Airworthiness, Report No. AA-25027, Revision A, dated October 22, 2025, or later FAA accepted revision, is required. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SR11256DS 02/05/2026 Continuation Sheet 2 of 3 Limitations and Conditions (continued): This STC is applicable to Bell Textron Canada Limited Model 505 serial numbers 65170 and 65301-subsequent. 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 to alter a product, the holder must give the other person written evidence of that permission. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number SR11256DS 02/05/2026 Continuation Sheet 3 of 3 Certification Basis: Subpart C 27.301 [27-0], 27.303 [27-0], 27.305(a) [27-0], 27.307(a) [27-26], 27.337(a) [27-26]; Subpart D 27.601(a) [27-0], 27.603 [27-16], 27.605(a) [27-16], 27.609(a) [27-0], 27.610 [27-46], 27.613(a)(d) [27-26], 27.619(b)(1) [27-0], 27.625(a) [27-35]; Subpart F 27.1301 [27-0], 27.1309(a)(c) [27-46], 27.1351(a)(b)(1)(i) [27-13], 27.1357(a)(c) [27-13], 27.1365 [27-35]; Subpart G 27.1501 [27-14], 27.1529 [27-18], 27.1581 [27-14]; Appendix A A27.1 [27-47], A27.2 [27-47], A27.3 [27-47], A27.4 [27-47]. - END - 5 5 ## Every issue (1) - February 5, 2026: Issued, Current. [certificate](https://openairdocs.org/files/sha256/31/b5/31b5ba11bdb46f2128a77960e7bb1c084bf392381cef58539911e5fb19da7445) --- 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.