# STC SR02445SE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: AEM USA Inc., United States - Description: Installation of P178 Failsafe Audio Mixer - Applied: November 7, 2014 - Status date: April 16, 2026 - Product: Aircraft, Rotorcraft - Certification basis: Part 29 - Data sheets: [TCDS H88EU](https://openairdocs.org/tcds/H88EU), [TCDS H9EU](https://openairdocs.org/tcds/H9EU), [TCDS H11EU](https://openairdocs.org/tcds/H11EU), [TCDS H2SW](https://openairdocs.org/tcds/H2SW) - Certificate PDF: https://openairdocs.org/files/sha256/98/92/98922a2e44bbca2c3bb07a2b9eac21d48e552b23b376a48d843746915eeb0949 - Approved model list and other attachments: [SR02445SE_AML_4-16-2026.pdf](https://openairdocs.org/files/sha256/41/f5/41f5758deabd1e9030f1ae08beb8126fa1e2a4c0caac11a473265030210dbfef) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID181248279520260805174457.0001 - DRS record last changed: August 5, 2026 - Page: https://openairdocs.org/stc/SR02445SE ## ADs that name it (0) None. ## Approved models (30) - Airbus Helicopters AS-350B ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350B3 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350BA ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350C ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350D ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS-350D1 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters AS355E ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F1 ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355F2 ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355N ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters AS355NP ([TCDS H11EU](https://openairdocs.org/tcds/H11EU)) - Airbus Helicopters EC 130 B4 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters EC 130 T2 ([TCDS H9EU](https://openairdocs.org/tcds/H9EU)) - Airbus Helicopters Deutschland GmbH EC135 P1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 P2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 P2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T1 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T2 ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Airbus Helicopters Deutschland GmbH EC135 T2+ ([TCDS H88EU](https://openairdocs.org/tcds/H88EU)) - Bell Helicopter Textron Canada Limited 206A ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206A-1 (OH-58A) ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206B ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-1 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-3 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 206L-4 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) - Bell Helicopter Textron Canada Limited 407 ([TCDS H2SW](https://openairdocs.org/tcds/H2SW)) ## 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. SR02445SE AEM USA, Inc. 5441 S. Macadam Ave # 5932 Portland, OR 97239 * * * *See attached Federal Aviation Administration (FAA) Approved Model List (AML) SR02445SE for approved aircraft Models and applicable airworthiness regulations. Approval of this change in type design applies to the rotorcraft listed on AML SR02445SE only. This approval should not be extended to other rotorcraft of this model on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and other previously approved modifications will introduce no adverse effect upon the airworthiness of that rotorcraft. A copy of this certificate, AML SR02445SE, and the ICA, must be maintained as part of the permanent records for the modified aircraft. 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 11/07/2014 10/28/2015 11/16/2018 05/20/2022 06/30/2015 ✔ for Manager, West Certification Branch 3 Installation of P178 Failsafe Audio Mixer in accordance with Master List as listed on AML SR02445SE, or later FAA approved revision. Maintained in accordance with Instructions for Continued Airworthiness (ICA) as listed on AML SR02445SE, or later FAA-accepted revision. SR02445SE 04/16/2026 3 SR02445SE 04/16/2026 Date Reissued: 4/16/2026 --------------------- End--------------------- 3 3 Add Page ### SR02445SE_AML_4-16-2026.pdf FEDERAL AVIATION ADMINISTRATION (FAA) APPROVED MODEL LIST (AML) SR02445SE FOR INSTALLATION OF A P178 FAILSAFE AUDIO MIXER ISSUE DATE: June 30, 2015 Page 1 of 1 **ITEM ROTORCRAFT MAKE** **ROTORCRAFT MODEL ORIGINAL TC NUMBER** **CERTIFICATION** **BASIS FOR** **ALTERATION** **MASTER LIST** **INSTRUCTIONS FOR CONTINUED** **AIRWORTHINESS** AML REV DATE Number Revision* Number Revision** 1. Airbus Helicopters AS350C, AS350D, AS350D1, AS350B, AS350B1, AS350B2, AS350B3, AS350BA, EC130B4, and EC130T2 H9EU FAR 27 7001-ML-001 Revision --, dated 10/30/2014 7001-IC-001 Revision --, dated 10/30/2014 2. Airbus Helicopters AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP H11EU FAR 27 7001-ML-001 Revision --, dated 10/30/2014 7001-IC-001 Revision --, dated 10/30/2014 3. Airbus Helicopters Deutschland GmbH EC135P1, EC135T1, EC135P2, EC135T2, EC135P2+, and EC135T2+ H88EU FAR 27 7001-ML-001 Revision --, dated 10/30/2014 7001-IC-002 Revision --, dated 10/30/2014 4. Bell 206A, 206A-1, 206B, 206L, 206L-1, 206L-3, 206L-4, and 407 H2SW FAR 27 7001-ML-001 Revision --, dated 10/30/2014 7001-IC-003 Revision --, dated 10/30/2014 * Or later FAA Approved Revision ** Or later FAA Accepted Revision FAA Approved: for Manager, West Certification Branch AMENDED: REISSUED: May 20, 2022; April 16, 2026 ## Every issue (5) - April 16, 2026: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/98/92/98922a2e44bbca2c3bb07a2b9eac21d48e552b23b376a48d843746915eeb0949), [SR02445SE_AML_4-16-2026.pdf](https://openairdocs.org/files/sha256/41/f5/41f5758deabd1e9030f1ae08beb8126fa1e2a4c0caac11a473265030210dbfef) - May 20, 2022: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/15/4d/154dd70b8deac32c57f0d6781df1427ab1be38fa3958d673452cb415d170d00a), [AML SR02445SE.pdf](https://openairdocs.org/files/sha256/a3/d4/a3d461927a720341bf63b297569bb2d23d25551a05bf4505a8d867e06a955492) - November 16, 2018: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/26/bc/26bc642c0ce6ac55ef861e3e1693b84acfca122b573a46f7d6d0c11fbf52e659), [SR02445SE_AML.pdf](https://openairdocs.org/files/sha256/04/0a/040a9e56a3ca66a2ee783c221e0101d173c311df61a6fc7330d0d3dee19ed53c) - October 28, 2015: Reissued, Historical. [certificate](https://openairdocs.org/files/sha256/12/a5/12a57210fb4a783699dd6c97aa940c06d5b1b79faf64b3e13d982e878ee02c9a), [SR02445SE_AML.pdf](https://openairdocs.org/files/sha256/04/0a/040a9e56a3ca66a2ee783c221e0101d173c311df61a6fc7330d0d3dee19ed53c) - June 30, 2015: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/d4/55/d455ba7f5b910d51f770415006523ad08b47218ec5ccc0334709c12419c21578), [SR02445SE_AML.pdf](https://openairdocs.org/files/sha256/04/0a/040a9e56a3ca66a2ee783c221e0101d173c311df61a6fc7330d0d3dee19ed53c) --- 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.