# STC SR04124CH - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Mid-Continent Instruments and Avionics, United States - Description: Installation of Lithium Ion Main Ship Battery - Applied: September 17, 2015 - Status date: December 21, 2016 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS H11NM](https://openairdocs.org/tcds/H11NM) - Certificate PDF: https://openairdocs.org/files/sha256/31/87/3187f46fa0ac7e317f512ee6f3ad671f9671bd9a1cf744ad1931518fe475b3bf - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9B26899988A0B0DA8625819900637ABB.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SR04124CH ## ADs that name it (0) None. ## Approved models (1) - Robinson Helicopter Company R44 II ([TCDS H11NM](https://openairdocs.org/tcds/H11NM)) ## 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. 27 Federal Aviation (See Type Certificate Data Sheet No. H11NM for complete certification basis) Installation of Lithium Ion Main Ship Battery in accordance with St. Louis Helicopter Master Drawing List Doc. No. 320-002- MDL Revision 2, dated August 29, 2016, or later FAA approved revision and St. Louis Helicopter Project Data List Doc. No. 320- 006-PDL Revision 5, dated August 29, 2016, or later FAA approved revision. 1. The installer must determine whether this design change is compatible with previously appro ved modifications. 2. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the othe r person written evidence of that permission. 3. FAA approved Flight Manual Supplement, St. Louis Helicopter Doc. No. 320-023-RFMS, Revision IR, approved August 25, 2016, or later FAA approved revision, is required on board the modified aircraft. Mid-Continent Instrument Co. Inc. 9400 E. 34th Street N. Wichita, KS 67226 H11NM Robinson Helicopter Company R44 II September 17, 2015 August 29, 2016 December 21, 2016 (Signature) Steven L. Lardinois, Manager Systems and Flight Test Branch Chicago Aircraft Certification Office (Title) FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES SR04124CH : August 29, 2016 Based on 14 CFR ยงยง21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for the Robinson R44 II rotorcraft as described in this certificate is as follows: a. The type certification basis for the Robinson R44 II rotorcraft is shown on TCDS H11NM for parts not changed or not affected by this change. b. The certification basis for the parts changed or affected by this change since the reference date of application, September 17, 2015, is based on TCDS H11NM. - END - ## Every issue (2) - December 21, 2016: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/31/87/3187f46fa0ac7e317f512ee6f3ad671f9671bd9a1cf744ad1931518fe475b3bf) - August 29, 2016: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/45/a2/45a22d3411dd48b9102a34ab8f7f3c42153364e1fd3687d2e22a07b2e53da3b9) --- 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.