# STC SA1491CE - Type: Supplemental type certificate - Status: Current, Amended - Holder: Aircraft Development Co - Description: Installation of flap and aileron gap seals. - Status date: February 24, 2005 - Data sheets: 3A17, 3A17, 3A17, 3A17, 3A17, 3A17, 3A17 - Certificate PDF: https://openairdocs.org/files/sha256/d8/0e/d80e684b55f226ba56a82e3e8c225b5007cf73c47ee70ab56bc020ec9a0175e5 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/11DDBA11AAD91A8686256FE200705269.0001 - Page: https://openairdocs.org/stc/SA1491CE ## ADs that name it None. ## Approved models (7) - The Cessna Aircraft Company 172RG (TCDS 3A17) - The Cessna Aircraft Company R172E (TCDS 3A17) - The Cessna Aircraft Company R172F (TCDS 3A17) - The Cessna Aircraft Company R172G (TCDS 3A17) - The Cessna Aircraft Company R172H (TCDS 3A17) - The Cessna Aircraft Company R172J (TCDS 3A17) - The Cessna Aircraft Company R172K (TCDS 3A17) ## 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. This certificate issued to: Aircraft Development Co. 1220 Red Oak Ct Troy, MO 63379 Part 3 of the Civil Air Regulations. Original Product--Type Certificate Number : 3A17 Make : Cessna Model : 172RG, R172E (USAF T-41B, T-41C, T-41D), R172F (USAF T-41D), R172G (USAF T-41C, T-41D), R172H (USAF T-41D), R172J, R172K Description of Type Design Change: Installation of flap and aileron gap seals per Aircraft Development Co. Drawing Lists 114-1 and 115-1 stamped "FAA approved" with a date of April 18, 1979, or later. 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 : April 20, 1979 Date of issuance : May 21, 1979 Date reissued : January 27, 1993; January 30, 1996 Date amended : April 29, 1983; February 24, 2005 Original signed by: Dan Withers ( Signature) Dan Withers Program Manager Wichita Aircraft Certification Office (Title) ## Every issue (1) - February 24, 2005: Amended, Current. [certificate](https://openairdocs.org/files/sha256/d8/0e/d80e684b55f226ba56a82e3e8c225b5007cf73c47ee70ab56bc020ec9a0175e5) --- 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.