# STC SA599CE - Type: Supplemental type certificate - Status: Current, Reissued - Holder: Eaglejet Aviation Inc., United States - Description: Alter wing leading edge and fuel system. Limited to installation on Cessna 421, serial number 421-0151. - Applied: August 27, 1968 - Status date: June 23, 2006 - Product: Aircraft, Small Multi-Engine - Certification basis: Part 3, Part 21 - Data sheets: [TCDS A7CE](https://openairdocs.org/tcds/A7CE) - Certificate PDF: https://openairdocs.org/files/sha256/2b/67/2b675bd54461bce24520056396c694872db6cdd9fbf461d10bd4f994a8216272 - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41E6DC5026625189862571C70053CE6B.0001 - DRS record last changed: December 5, 2025 - Page: https://openairdocs.org/stc/SA599CE ## ADs that name it (1) - [AD 73-22-01](https://openairdocs.org/ad/73-22-01): Fuel In Wing Leading Edge ยท Cessna 340, 401, 401A and 11 more. Effective May 29, 1978. Named in the applicability ## Approved models (1) - The Cessna Aircraft Company 421 ([TCDS A7CE](https://openairdocs.org/tcds/A7CE)) ## 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: Eaglejet Aviation Inc. 1600 Airport Road Wichita, KS 67209 Part 3 of the Civil Air Regulations. Original Product - Type Certificate Number : A7CE Make : Cessna Model : 421 Alter wing leading edge and fuel system. Data pertaining to this modification are considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Cessna Model 421, Serial Number 421-0151. Date of application : August 27, 1968 Date of issuance : September 27, 1968 Date reissued : March 19, 1982; May 20, 2002; September 20, 2002; February 28, 2003; June 23, 2006 Date amended : Original signed by Dan Withers (Signature) Dan Withers Program Manager Wichita Aircraft Certification Office (Title) ## Every issue (1) - June 23, 2006: Reissued, Current. [certificate](https://openairdocs.org/files/sha256/2b/67/2b675bd54461bce24520056396c694872db6cdd9fbf461d10bd4f994a8216272) --- 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.