# STC SR00631DE-D - Type: Supplemental type certificate - Status: Current, Amended - Holder: AKV Inc., United States - Description: Installation of an AKV, Inc. Dual Engine Cycle Counter - Applied: June 6, 2007 - Status date: February 28, 2013 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H13EU](https://openairdocs.org/tcds/H13EU), [TCDS H4EU](https://openairdocs.org/tcds/H4EU) - Certificate PDF: https://openairdocs.org/files/sha256/b5/12/b512283e70be513230b573aa115356a3655784a8d441a2972f8399d3d160014b - Approved model list and other attachments: [AML SR00631DE-D.pdf](https://openairdocs.org/files/sha256/79/fc/79fceea96874993f3f52b7bc8192060cae2ef0f58f91e0bab63ba540afcdbbc3) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/740C0833DE007C6E86257C1C00738B1F.0001 - DRS record last changed: December 6, 2025 - Page: https://openairdocs.org/stc/SR00631DE-D ## ADs that name it (0) None. ## Approved models (10) - Eurocopter Deutschland GmbH MBB-BK 117 A-1 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 A-3 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 A-4 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 B-1 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 B-2 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 C-1 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter Deutschland GmbH MBB-BK 117 C-2 ([TCDS H13EU](https://openairdocs.org/tcds/H13EU)) - Eurocopter France AS332C ([TCDS H4EU](https://openairdocs.org/tcds/H4EU)) - Eurocopter France AS332L ([TCDS H4EU](https://openairdocs.org/tcds/H4EU)) - Eurocopter France AS332L1 ([TCDS H4EU](https://openairdocs.org/tcds/H4EU)) ## What the certificate says This is OCR from the scanned FAA certificate. OCR can misread letters and numbers. United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SR00631DE-D This certificate issued to: AKV, INC. 777 Aviation Road Camarillo, CA 93010 Part 29* of the Federal Aviation Regulations. Original Product Type Lertificate Number: * See attached FAA Approved Model List (AML) No. Make: SR00631DE-D for a list of approved aircraft models Model: and applicable airworthiness regulations Description of Type Design Change: Installation of an AKV, Inc. Dual Engine Cycle Counter in BK117 models listed above (kit P/N BK1172XCC) in accordance with FAA Approved AKV, Inc. Master Drawing List (MDL), No. 771-9048, Rev F dated October 10, 2012, or later FAA approved revisions. Installation of an AKV Inc Dual Cycle Counter in AS332 models listed above (kit P/N AS332L2XCC) in accordance with FAA Approved AKV, Inc. Master Drawing List (MDL), No. 771-9048, Rev F dated October 10, 2012, or later FAA approved revisions. 1) This approval should not be extended to rotorcraft of this model on which other previously approved modifications are incorporated, unless it is determined that the interrelationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that rotorcraft. 2) A copy of this certificate and the FAA Approved Rotorcraft Flight Manual Supplement, No. 080-0401, Rev. B, dated August 13, 2008, or later FAA approved revision must be maintained as part of the permanent records of the modified BK117 rotorcraft. A copy of this certificate and the FAA Approved Rotorcraft Flight Manual Supplement, No. AS332- RFMS, Rev. NC, dated February 28, 2013, or later FAA approved revision must be maintained as part of the permanent records of the modified AS332 rotorcraft. 3) Instructions for Continued Airworthiness, Report AMMS 050-0443, Rev. B dated August 13, 2008, FAA accepted September 25, 2007, or later FAA accepted revision is required for the BK117 installation. Instructions for Continued Airworthiness, Report AS332-ICA, Rev. NC dated February 26, 2013, or later FAA accepted revision is required for the AS332 installation. 4) A copy of this STC must be included in the permanent records of the modified rotorcraft. If the holder agrees to permit another person to use this certificate to alter the product, the holder shall give the other person written evidence of that permission. This certificate and the supporting data which is the basis for approval shall remain in offeet until surrendered, suspended, revcked or a terination date is etherwise established by the Administrater of the Federal Aviation Administration Jute c/upplicution: June 6, 2007 Jule reisurd: February 17, 2009; March 12, 2010; June 25, 2012 Tute c/ issuance: January 29, 2009 Date Amended: February 28, 2013 FEDERAL AVIAT By Direction of the Administrator (Signature) Manager, Propulsion Branch TOMINISTRATO Los Angeles Aircraft Certification Office (Title) ### AML SR00631DE-D.pdf **APPROVED MODEL LIST SR00631DE-D** **AKV, INC.** **INSTALLATION OF DUAL ENGINE CYCLE COUNTER** Original Issue Date: February 28, 2013 Revision: NC Page 1 of 1 **ITEM AIRCRAFT MAKE** **AIRCRAFT MODEL** **ORIGINAL TYPE** **CERTIFICATE NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **INSTALLATION INSTRUCTIONS AML AMEND- MENT DATE** **TITLE** REVISION NO. AND DATE 1 Eurocopter France AS332C, L, L1 (NON- FADEC) H4EU Part 29 as defined in TCDS H4EU Master Drawing List (MDL) NO. 771-9048 REV F DATED **OCTOBER 10, 2012 OR** **LATER FAA** **APPROVED** **REVISIONS** 2 Eurocopter Deutschland GMBH MBB-BK 117 A-1, A-3, A- 4, B-1, B-2, C-1, C-2 H13EU Part 29 as defined in TCDS H13EU **MASTER DRAWING LIST (MDL), NO. 771- 9048 REV F DATED** **OCTOBER 10, 2012 OR** **LATER FAA** **APPROVED** **REVISIONS** FAA Approved:__________________________________ Thomas Enyart Manager, Propulsion Branch : Los Angeles Aircraft Certification Office ## Every issue (5) - February 28, 2013: Amended, Current. [certificate](https://openairdocs.org/files/sha256/b5/12/b512283e70be513230b573aa115356a3655784a8d441a2972f8399d3d160014b), [AML SR00631DE-D.pdf](https://openairdocs.org/files/sha256/79/fc/79fceea96874993f3f52b7bc8192060cae2ef0f58f91e0bab63ba540afcdbbc3) - June 25, 2012: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/56/e2/56e2815fefde4f81e93a9409f3708c5e7b4e522dcf8cee798f38a90423e26f42) - March 12, 2010: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/14/15/1415479b6e3dcb5f167ce25160d6c43ce9283041d2a9723cea0dae68ec509989) - February 17, 2009: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/f3/58/f35850cd07b2df5b9cb249836d2f6a5425e6c39a3326b2270475cefe01c6391a) - October 9, 2007: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/a9/26/a926487fd91bd0ebd0c0a1bcb89285b1b827f1ba225f287470a71b98dfedba7b) --- 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.