# STC ST04578AT - Type: Supplemental type certificate - Status: Current, Issued - Holder: Archeion Holdings L.L.C. - Description: Installation of an Avionica, LLC Auxiliary Display Unit Hosted Application (ADU APP) on an Avionica avWiFi Server System - Status date: December 11, 2023 - Data sheets: T00001SE, T00001SE, T00001SE, T00001SE - Certificate PDF: https://openairdocs.org/files/sha256/a1/f1/a1f17912884fb9a9cd194fab83e6c2e4dec6148378d061c7504474a2dda04ef5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID141603576420240318142241.0001 - Page: https://openairdocs.org/stc/ST04578AT ## ADs that name it None. ## Approved models (4) - The Boeing Company 777-200 Series (TCDS T00001SE) - The Boeing Company 777-200LR Series (TCDS T00001SE) - The Boeing Company 777-300 Series (TCDS T00001SE) - The Boeing Company 777-300ER Series (TCDS T00001SE) ## 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. Title: (for) Christina M. Underwood Manager, East Certification Branch Compliance and Airworthiness Division Aircraft Certification Service ST04578AT Archeion Holdings, L.L.C. 9941 West Jessamine Street Miami, FL 33157 Part 25 Federal Aviation Regulations T00001SE Boeing 777-200, -300, -300ER, -200LR Installation of an Avionica, LLC Auxiliary Display Unit Hosted Application (ADU APP) on an Avionica avWiFi Server System in accordance with 213491-MDL, Revision C, Dated November 29, 2023 or later FAA approved revision. The ADU APP collects data from the following systems added per the cargo conversion STC: See continuation sheets 3 through 5 The following is required for the function of the Auxiliary Display Unit Hosted Application (ADU APP): 1. Installation of an Avionica avWiFi Server with Cybersecurity Compliance and Hosted Application Functionality for Interface with different protocols, per STC ST04564AT. See continuation sheets 3 through 5 July 12, 2022 December 11, 2023 5 ST04578AT 5 ST04578AT Description of Type Design Change (Continued): - Air Conditioning Environmental Control System (AIR/ECS) and the Supernumerary Oxygen System; the interface provided via the General Purpose Controller (GPC). - Smoke Detection System (SDS). Wiring is added for interfacing the avRDC MAX QAR Remote Data Concentrator to the SDS and GPC; The avRDC MAX QAR Data Concentrator provides this data to the avWiFi Server. The avSWITCH provides the connectivity between the avWiFi Server and the ASG Power Ethernet Adapter Unit (PEAU) which provides power and connectivity to the flight deck Auxiliary Displays; the avWiFi Server running the ADU APP provides the status and maintenance information of the SDS and GPC via a web browser running on the flight deck Auxiliary Displays. For maintenance and inspections of the Auxiliary Display Unit (ADU) Hosted Application, apply Archeion Holdings Instructions for Continued Airworthiness 213491-ICA, Revision B, Dated November 29, 2023, or later FAA accepted or approved revisions. 2. Installation of an Avionica avSWITCH System, per STC ST04536AT. 3. Installation of an Avionica Remote Data Concentrator avRDC MAX QAR, per STC ST04164AT. 4. Installation of an ASG Constant Friction Mount (cfMount) with integrated Power Ethernet Adapter Unit (PEAU), per STC ST04000AT. ST04578AT Limitations and Conditions (Continued): 5. Installation of the Smoke Detection System (SDS), Air Conditioning Environmental Control System (AIR/ECS), Supernumerary Oxygen System, General Purpose Controller (GPC), and the Flight Deck Auxiliary Displays, per the Israel Aerospace Industries (IAI) Cargo Conversion STC (Ref Validation project ST11148IB-T of the CAA-Israel STC project 1236) The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission. Certification Basis: Based on 14 CFR §§ 21.115 and 21.101, and the FAA policy for significant changes in FAA Order 8110.48, the certification basis for parts changed or affected by the change since the reference date of application, July 12, 2022, is based upon 14 CFR Part 25 as amended by Amendment 25-146. Based on Order 8110.48, the certification basis for this modification was determined to be: a. For parts not changed or affected by the change, the certification basis is shown on TCDS T00001SE. b. The certification basis for parts changed or affected by the change since the reference date of application, July 12, 2022, is based upon 14 CFR Part 25 as amended by Amendment 25-146. Regulations at latest amendment 25-0 through 25-146: 25.1(a)(b) 25.1301(a)(1,2,4) 25.1309(a)(b)(1,2)(d)(1,2,3) 25.1529(25‐54) Appendix H 4 5 ST04578AT Certification Basis (Continued): Regulations at an intermediate amendment, or at the amendment level in TCDS T00001SE: None. 14 CFR Part 26 regulations: Based on 14 CFR 21.101(g), applicable provisions of 14 CFR Part 26 are included in the certification basis. For any future 14 CFR Part 26 amendments, the holder of this STC must demonstrate compliance with the applicable sections. As of the issuance date of this STC, compliance has been found for the following regulations: 14 CFR 26.11 (Amdt 26-7). 14 CFR Part 34 Regulations: This modification has been determined to not be an emissions change in accordance with 14 CFR 21.93(c). 14 CFR Part 36 Regulations: This modification has been determined to be a no acoustic change in accordance with 14 CFR 21.93(b). ---------------------------------------------------END----------------------------------------------------- Issued December 11, 2023 5 5 ## Every issue (1) - December 11, 2023: Issued, Current. [certificate](https://openairdocs.org/files/sha256/a1/f1/a1f17912884fb9a9cd194fab83e6c2e4dec6148378d061c7504474a2dda04ef5) --- From OpenAirDocs.org, an independent open copy of FAA data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.