STC SA1580NM

AI718NMD-S United States of America Department of Transportation Federal Aviation Administration Supplemental Type Certificate Number: SA1580MM This certificate issued to: Heliarc Welding Service, Inc.

P. O. Box 38509 3965 Newport Street Denver, Colorado 80238 Part 3 of the CiVil Air Regulations.

Original Product -Type Certificate Number: A4CE Make: Cessna Model: TP206A, B, C, D, E Description of Type Design Change: TU206A, B, C, D, E, F, G Installation of replacement exhaust heat exchanger in accordance with FAA sealed Heliarc Welding Service Drawing List Number 3, revised April 11, 1986; FAA approved May 22, 1986; or later FAA approved revision.

This approval should not be extended to other aircraft of this model on which other previously approved modifications are incorporated unless it is determined that the interrelationship between this change and any other previously approved modification will introduce no adverse effect upon the airworthiness of the airplane.

Date of Application: March 19, 1984 Date Reissued:

Date of Issuance: . April 18, 1984 Date Amended: May 22, 1986 FEDERAL AVIATION By Direction of the Administrator voodt ordi Denver Aircraft Certification Office Northwest Mountain Region, Aurora, Colorado (Title )