# STC SR02596SE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: OLYMPIC AERO SERVICES INC., United States - Description: Installation of Olympic Aero Services, Inc. Additional Telemetry Unit (ATU) - Applied: March 12, 2018 - Status date: October 4, 2018 - Product: Aircraft, Rotorcraft - Certification basis: Part 21, Part 29 - Data sheets: [TCDS H1SW](https://openairdocs.org/tcds/H1SW), [TCDS H4SW](https://openairdocs.org/tcds/H4SW), [TCDS H4NM](https://openairdocs.org/tcds/H4NM), [TCDS 1H15](https://openairdocs.org/tcds/1H15) - Certificate PDF: https://openairdocs.org/files/sha256/4e/e6/4ee617e9134a5d912f15179d54e16e4fd2f07035be4983600b414ddce37f6ec6 - Approved model list and other attachments: [SR02596SE_AML.pdf](https://openairdocs.org/files/sha256/f7/4c/f74c7c2d161f12e8160fca72efbfb8399cdde865308d1a3fbd1234bc88eb7313) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/C8847C3DA8C3B71E86258322005B78E7.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SR02596SE ## ADs that name it (0) None. ## Approved models (10) - Bell Helicopter Textron Inc. 205A ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 205A-1 ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 205B ([TCDS H1SW](https://openairdocs.org/tcds/H1SW)) - Bell Helicopter Textron Inc. 212 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 412 ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 412CF ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. 412EP ([TCDS H4SW](https://openairdocs.org/tcds/H4SW)) - Bell Helicopter Textron Inc. UH-1E ([TCDS H4NM](https://openairdocs.org/tcds/H4NM)) - Bell Helicopter Textron Inc. UH-1L ([TCDS H4NM](https://openairdocs.org/tcds/H4NM)) - Sikorsky Aircraft S-61N ([TCDS 1H15](https://openairdocs.org/tcds/1H15)) ## 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 Am erica Department of Transportation - Federal Aviation Administration Supplemental Type Certificate Number SR02596SE This certificate, issued to Olympic Aero Services, Inc. 3245 75th Ave SE Olympia, WA 98501 Part * of the * Regulations. Original ProductType Certificate Number: * See attached Federal Aviation Administration (FAA) Make: Approved Model List (AML) SR02596SE for approved Model: rotorcraft models and applicable airworthiness regulations Description of the Type Design Change: Installation of Olympic Aero Services, Inc. Additional Telemetry Unit (ATU) in accordance with the Master Drawing List as listed on AML SR02596SE. Maintained in accordance with Instructions for Continued Airworthiness (ICA) as listed on the AML SR02596SE. Limitations and Conditions: Approval of this change in type design applies to the rotorcraft listed on AML SR02596SE only. This approval should not be extended to other rotorcraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any other previously approved modifications will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate, AML SR02596SE, and the applicable ICA, must be maintained as a part of 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. Date of application: March 12, 2018 Date reissued: Date of issuance: May 3, 2018 Date amended: (Signature) Manager, Seattle ACO Branch (Title) ### SR02596SE_AML.pdf FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR02596SE FOR OAS-606 ADDITIONAL TELEMETRY UNIT (ATU) ISSUE DATE: MAY 3, 2018 Page 1 of 1 **ITEM ROTORCRAFT MAKE** **ROTORCRAFT MODEL** **ORIGINAL** **TC NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **FAA ACCEPTED INSTUCTIONS** **FOR CONTINUED** **AIRWORTHINESS** **FAA APPROVED MASTER** DRAWING LIST AML REV DATE Number ** Revision* Drawing Revision* 1. Bell 205A, 205A-1, 205B H1SW 14 CFR Part 29 OAS-606-29.1529-1 Revision A, 4/25/2018 OAS-606-MDL Revision B, 3/26/2018 2. Bell 212, 412, 412CF, 412EP H4SW 14 CFR Part 29 OAS-606-29.1529-1 Revision A, 4/25/2018 OAS-606-MDL Revision B, 3/26/2018 3. Bell UH-1E, UH-1L H4NM 14 CFR Part 29 OAS-606-29.1529-1 Revision A, 4/25/2018 OAS-606-MDL Revision B, 3/26/2018 **4. SIKORSKY** AIRCRAFT S-61N 1H15 14 CFR Part 29 OAS-606-29.1529-2 Revision A, 4/25/2018 OAS-606-MDL Revision B, 3/26/2018 * Or later FAA Approved/Accepted Revision ** As applicable FAA Approved: Manager, Seattle Aircraft Certification Office AMENDED: REISSUED: October 4, 2018 ## Every issue (2) - October 4, 2018: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/4e/e6/4ee617e9134a5d912f15179d54e16e4fd2f07035be4983600b414ddce37f6ec6), [SR02596SE_AML.pdf](https://openairdocs.org/files/sha256/f7/4c/f74c7c2d161f12e8160fca72efbfb8399cdde865308d1a3fbd1234bc88eb7313) - May 3, 2018: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/4e/e6/4ee617e9134a5d912f15179d54e16e4fd2f07035be4983600b414ddce37f6ec6), [SR02596SE_AML.pdf](https://openairdocs.org/files/sha256/68/0b/680bb1c511b79dd6a40d4dfa4006c25edfc4de0ad5d02c250084e03c30e021ed) --- 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.