# STC ST04455AT - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Woven Electronics LLC, United States - Description: Installation of the Honeywell MK II ACARS System with Data-link Communication Function - Applied: October 14, 2015 - Status date: June 14, 2022 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 25, Part 26 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/00/78/00782751417b06bfe99a97731a9b77442d8984f20e3f88c4e6d6027603322717 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ECFE7D5A8BEB41BD862588630061FFF1.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/ST04455AT ## ADs that name it (0) None. ## Approved models (2) - The Boeing Company 747-400 Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE)) - The Boeing Company 747-400F Series ([TCDS A20WE](https://openairdocs.org/tcds/A20WE)) ## 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. FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 1 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: Title: (for) Christina M. Underwood Manager, Atlanta ACO Branch Compliance and Airworthiness Division Aircraft Certification Service ST04455AT Woven Electronics, LLC 16000 Pines Blvd, #824431 Pembroke Pines, FL-33082-9599 Part 25 the Federal Aviation Regulations A20WE Boeing 747-400/-400F Series Installation of the Honeywell MK II ACARS System with Data-link Communication Function on the Boeing 747-400/-400F Series Aircraft in accordance with Master Drawing List (MDL) 2-143713-001, Rev. A, Dated April 3, 2018, or later FAA approved revision. (See Continuation Sheets 3 and 4) October 14, 2015 June 14, 2022 August 7, 2019 4 FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page 2 of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: ST04455AT FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST04455AT Limitations and Conditions - cont.: This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated, unless it is determine by the installer that the interrelationship between this change and any other previously approved modifications will produce no adverse effect upon the airworthiness of that airplane. 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. FAA Approved Airplane Flight Manual Supplements for the Honeywell MK II Aircraft Communication, Addressing, and Reporting System (ACARS) 2-143713-805, Rev IR, Dated August 7, 2019, or later FAA approved revision and Upgrade of Cockpit Voice Recorder (CVR) System 2-143713-806, Rev IR, Dated August 07, 2019, or later FAA approved revision are required part of this STC. Instructions for Continued Airworthiness (ICA) document 2-143713-804, Rev. B, dated April 3, 2018 or later FAA approved revision must be made available to the operator at the time of installation. FAA Form 8110-2 (11/20) SUPERSEDES PREVIOUS EDITION Page ___ of ___ United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate (Continuation Sheet) Number: ST04455AT 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 the Boeing 747-400/-400F series aircraft is as follows: a. The type certification basis for Boeing 747-400/-400F series aircrafts are shown on TCDS A20WE for parts not changed or not affected by the change. b. The certification basis for parts changed or affected by the change since the reference date of application, October 14, 2015 is based upon part 25 as amended by Amendment 25-122. 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 this modification was determined to be: Regulations at the latest amendment 25-0 through 25-122 25.23(a), 25.301(a), 25.303, 25.561(c), 25.601, 25.603(a)(b)(c), 25.607(a)(1)(b), 25.609 (a), 25.613(a)(b)(c), 25.625(a), 25.853(a), 25.1351(a)(1), 25.1431(a)(c), 25.1529, 25.1541(b), 25.1581 Regulations at an intermediate amendment 25.305(a) Amdt 25-86, 25.307(a) Amdt 25-72, 25.571 Amdt. 25-96, 25.869(a)(4) Amdt. 25-113, 25.1353(a)(d) Amdt. 25-113, 25.1381(a)(1)(b) Amdt. 25-72, 25.1457(a)(b)(c)(d) (e)(f)(g) Amdt. 25-65 Regulations at the amendment level in TCDS A20WE 25.611, 25.863(a), 25.1301(a)(c)(d), 25.1309(b)(d), 1322, 25.1357(a)(c) 14 CFR Part 26 Regulations Based on 14 CFR 21.101(g), applicable provision 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 regulation: 14 CFR 26.11. --------------------------END--------------------------- 4 4 ## Every issue (2) - June 14, 2022: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/00/78/00782751417b06bfe99a97731a9b77442d8984f20e3f88c4e6d6027603322717) - August 7, 2019: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/7c/20/7c20a059a09bdd3f8b51ddce85900efc758512575b06561e3bf6d3c18ef23828) --- 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.