# STC ST9212SC-D - Type: Supplemental type certificate - Status: Current, Amended - Holder: L-3 Communications Integrated Systems LP, United States - Description: Replacement of existing Communication Switching Systems (CSS) batteries installed as a part of the Mission Communications Systems (MCS) - Applied: May 23, 2007 - Status date: March 22, 2013 - Product: Aircraft, Large Airplane - Certification basis: Part 21, Part 25, Part 121, Part 129 - Data sheets: [TCDS A20WE](https://openairdocs.org/tcds/A20WE) - Certificate PDF: https://openairdocs.org/files/sha256/0e/bc/0ebc13e436019aadabc75fe2f5492476673710dbda4579c86cc6cc779d2701de - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/2EDF1EDFA7B4A5C586257B4B0050EBA0.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/ST9212SC-D ## ADs that name it (0) None. ## Approved models (1) - The Boeing Company 747-200B 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. Number ST9212SC-D This Certificate issued to L-3 Communications Integrated Systems, L.P. 10001 Jack Finney Blvd. Greenville, TX 75402 Part 25 of the Federal Aviation Regulations. Original Product Type Certificate Number: A20WE *SEE PAGE 3 Make : Boeing Model : 747-200B (2G4B) Description of Type Design Change: Replacement of existing Communication Switching Systems (CSS) batteries installed as a part of the Mission Communications Systems (MCS) in accordance with L-3 Communications Integrated Systems Sealed Drawing List SDL 6165-5, Revision NC dated 27 July 2007 or later FAA approved revisions. Continued airworthiness is provided by L-3 Communications Integrated Systems Instructions for Continued Airworthiness for the AMPS 2000 Battery Replacement, Report No. G6165M.28.08 Revision NC dated 11 June 2007, or later FAA accepted ICA, with the requirement that these instructions be incorporated into the operator’s maintenance program. 1. The installer must determine whether this design change is compatible with previously approved modifications. 2. 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: 23 May 2007 Date reissued : Date of issuance : 08 August 2007 Date amended : 22 March 2013 – Amdt 1 By direction of the Administrator (Signature) Michael E. Hopper ODA-750173-SW Administrator, Alternate (Title) Transfer the ownership of Supplemental Type Certificate Number to (Name of transferee) (Address of transferee) (Number and street) (City, State, and Zip code) from (Name of grantor) (Print or type) (Address of grantor) (Number and street) (City, State and Zip code) Extent of Authority (if licensing agreement): Signature of grantor (In ink): FAA Form 8110-2-1(10-69) Page 3 of 3 Number ST9212SC-D Amendment 1 Date of Issuance: 22 March 2013 Limitations and Conditions: (Continued) 3. Based on 14 CFR §§ 21.115 and 21.101, the certification basis for the Boeing 747-200B (2G4B) aircraft is as follows: a. The type certification basis fo r Boeing 747-200B (2G4B) series airplanes is shown on TCDS A20WE for parts not changed or not affected by the change. b. The certification basis for parts changed or aff ected by the change since the reference date of application, 23 May 2007, is as shown in TCDS A20WE with the exception that 25.981(a)(3) is at amendment 102 and 25.1529 is at amendment 54. 4. STC ST9208SC-D must be installed prior to installation of this STC. 5. When installed, airplanes with this STC are limite d to operations excluding those of an Air Carrier. Specifically, no operations under 14 CFR 121, 14 CFR 129 or any foreign Air Carrier are permitted. --------------------------------------------------END---------------------------------------------- ## Every issue (1) - March 22, 2013: Amended, Current. [certificate](https://openairdocs.org/files/sha256/0e/bc/0ebc13e436019aadabc75fe2f5492476673710dbda4579c86cc6cc779d2701de) --- 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.