# STC ST04624CH - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Astronics Armstrong Aerospace, United States - Description: Installation of Astronics In-Seat Power System - Applied: April 19, 2023 - Status date: November 15, 2023 - Product: Aircraft, Large Airplane - Certification basis: Part 25 - Data sheets: [TCDS A21EA-1](https://openairdocs.org/tcds/A21EA-1) - Certificate PDF: https://openairdocs.org/files/sha256/0a/85/0a8536b838000f46999ef6464e058145545b699296187ac5008173328f3b94d0 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DRSDOCID108772145220231207155603.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/ST04624CH ## ADs that name it (0) None. ## Approved models (1) - MHI RJ Aviation ULC CL-600-2D24 (Regional Jet Series 900) ([TCDS A21EA-1](https://openairdocs.org/tcds/A21EA-1)) ## 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. Number: ST04624CH Part 25 of the Federal Aviation Regulations. Original Product Type Certificate Number: A21EA-1 Make: MHI RJ Aviation ULC Model: CL-600-2D24 (Regional Jet Series 900) Date of Application: April 19, 2023 Date Reissued: November 15, 2023 Date of Issuance: November 14, 2023 Date Amended: Brenda L. Litchfield ODA Administrator Title: Envoy Aerospace, LLC ODA-831240-CE Astronics Armstrong Aerospace 804 S. Northpoint Blvd Waukegan, IL 60085 1) This STC is applicable to all serial numbers for this Make-Model. 2) The installer must determine whether this design change is compatible with previously approved modifications. 3) FAA Approved Airplane Flight Manual Supplement, Astronics Armstrong Aerospace Doc. No. DC303-141820- 00, Revision -, approved November 14, 2023, or later FAA approved revision is required on board the modified aircraft. 4) Incorporation of this design change requires previous application of STC ST04039CH, Installation of an Astronics EmPower In-Seat Power Supply System and Avionics Innovations Pre-Recorded Announcement Machine (PRAM). 5) Incorporation of this design change requires previous or concurrent application of STC ST02400LA, C&D Zodiac, Inc. Interior Installations and Modifications. 6) 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. Installation of Astronics In-Seat Power System in accordance with Astronics Connectivity Systems and Certification Master Data List, Doc. No. DC104-141820-00, Revision B, dated November 7, 2023, or later FAA-approved revisions. Number: ST04624CH (Continuation Sheet) Number: ST04624CH Date Reissued: November 15, 2023 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 MHI RJ Aviation ULC CL-600-2D24 (Region Jet Series 900) aircraft is as follows: a. The type certification basis for the MHI RJ Aviation ULC CL-600-2D24 (Region Jet Series 900) aircraft is shown on TCDS A21EA-1 for parts not changed or affected by the change. b. This certification basis for parts changed or affected by the change since the reference date of application is based upon TCDS A21EA-1. Based on 14 CFR 21.115 and 21.101, and the FAA policy for significant changes in Order 8110.48, the certification basis for this modification was determined to be: Applicable regulations at the latest amendment 25-0 through 25-86, 25-88 through 25-90, and 25-92 through 25-98 § 25.29(a)(b) § 25.601 § 25.603(a)(b)(c) § 25.605(a) § 25.607(a)(b)(c) § 25.609(a) § 25.611 § 25.613(a)(b) § 25.789(a) § 25.1301(a)(b)(c)(d) § 25.1307(c) § 25.1309(a)(b)(d)(g) § 25.1351(a)(1) § 25.1353(a)(b) § 25.1357(a)(c) § 25.1431(a)(b)(c) § 25.1501(a)(b) § 25.1529 § 25.1581(a)(b)(d) § 25.1585(a)(b) Applicable 14 CFR Part 25 regulations at other amendment levels § 25.853(a) [Amdt 25-116]; § 25.869(a) [Amdt 25-113]; § 25.981(a) [Amdt 25-102]. Applicable 14 CFR Part 26 regulations at the latest amendment 26-0 through 26-7 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 latest amendment date of this STC, compliance has been found for the following regulations: 14 CFR § 26.11(c) [Amdt. No. 26-7]; § 26.47(c) [Amdt. No. 26-7]. This modification does not affect or create fatigue critical baseline structure. ## Every issue (1) - November 15, 2023: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/0a/85/0a8536b838000f46999ef6464e058145545b699296187ac5008173328f3b94d0) --- 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.