# STC SH3555NM - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Rolls-Royce Engine Services-Oakland Inc., United States - Description: Installation of a Teledyne-Gill P/N G-641 lead acid battery. - Applied: November 17, 1986 - Status date: January 6, 2011 - Product: Aircraft, Rotorcraft - Certification basis: Part 21 - Data sheets: [TCDS H3WE](https://openairdocs.org/tcds/H3WE) - Certificate PDF: https://openairdocs.org/files/sha256/4f/16/4f16def2efd22e09d2850a1286edeaf7f391dbd179c3f540a37ad1f41d89266b - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CA195B9AB3B3E1588625781500679960.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SH3555NM ## ADs that name it (0) None. ## Approved models (8) - MD Helicopter Inc. 369D ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369E ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369F ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369FF ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369H ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369HE ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 369HS ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) - MD Helicopter Inc. 500N ([TCDS H3WE](https://openairdocs.org/tcds/H3WE)) ## 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 This certificate has been reissued to replace the original certificate reported as lost. This Certificate issued to ROLLS-ROYCE ENGINE SERVICES-OAKLAND INC. 7200 Earhart Road Oakland, California 94621-4504 Part 6 of the Civil Air Regulations.. H3WE MD Helicopter Inc. (MDHI) 369H, 369HS, 369HE, 369D, 369E, 369F, 369FF, 500N Description of Type Design Change: Installation of a Teledyne-Gill, P/N G-641 Lead Acid Battery in accordance with FAA Approved Heli-Dyne, Inc. Dr awing List Report No. 2000, no revision, dated November 18, 1986, or later FAA approved revisions. Heli-Dyne Inc. FAA Approved Rotorcraft Flight Manual Supplement, McDonnell Douglas Helicopter da ted December 31, 1986, or later FAA approved revision is required with this installation. Limitations and Conditions: The approval of this change in type design applies basically to the listed models only. This approval should not be extended to other rotorcra ft of these models on which other previously approved modifications are incorporated, unless it is determined by the installer that the interrelationship between this cha nge and any of those other previ ously approved modifications will introduce no adverse effect upon the airworthiness of that rotorcraft. If the holder agrees to permit another person to use this certificate to alter the product, th e holder shall give the other person written evidence of that permission. Date of application : November 17, 1986 Date of issuance : January 29, 1987 Date reissued : April 30, 1995, January 6, 2011 Date amended : May 6, 1988, April 6, 1993 ( Signature) Supervisor, Technical & Administrative Support Staff, Los Angeles Aircraft Certification Office ( Title) NOTE: **DO NOT DELETE THIS PAGE.** **DO NOT ADD ANY DATA TO THIS PAGE.** **THIS PAGE IS FOR PAGE NUMBERING PURPOSES, PLEASE DISCARD PRINTED COPY.** Number ## Every issue (1) - January 6, 2011: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4f/16/4f16def2efd22e09d2850a1286edeaf7f391dbd179c3f540a37ad1f41d89266b) --- 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.