# STC ST00253BO - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Pratt & Whitney Engine Services Inc. - Description: Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit (DTU). - Status date: October 22, 2007 - Data sheets: A22CE - Certificate PDF: https://openairdocs.org/files/sha256/06/5f/065f0f20362ab944dde4196d4427df086e720670f7dc41045ea544663f2acb26 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/54C35202CCB87BC38625738D00788564.0001 - Page: https://openairdocs.org/stc/ST00253BO ## ADs that name it None. ## Approved models (1) - Cessna Aircraft Company 560XL (TCDS A22CE) ## 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. 249 Vanderbilt Ave. Norwood, MA 02062 Part 25 of the Federal Aviation Regulations. Original Product Type Certificate Number : A22CE Cessna 560XL Make : Installation of Pratt & Whitney Engine Services, Inc. Data Transmission Unit (DTU) in accordance with Installation Manual DTU- G-010-4, Revision B, dated April 26, 2007, or later FAA-approved revision. 1. Instructions for Continued Airworthiness (ICA) DTU-G-260-4, Revision A, dated March 5, 2007, or later FAA accepted revision, shall be made available to the operator at the time of installation. 2. Compatibility of this design change with previously approved modifications must be determined by the installer. 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 : February 15, 2007 Date of issuance : June 11, 2007 Date reissued : October 22, 2007 ( Signature) Robert G. Mann Manager, Boston Aircraft Certification Office ( Title) ## Every issue (2) - October 22, 2007: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/06/5f/065f0f20362ab944dde4196d4427df086e720670f7dc41045ea544663f2acb26) - June 11, 2007: Issued, Historical. [certificate](https://openairdocs.org/files/sha256/71/c0/71c0d95374b828616d8589538b4542f9962a25800a99473cef219681802a68d2) --- 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.