STC SE94SW

FAA Form 8110-2 (5/14) Page 1 of 2

Number: SE94SW

Part 33 of the Federal Aviation Regulations.

Original Product – Type Certificate Number: 3E1 Make: Continental Motors Inc.

Model: IO-470 Description of Type Design Change:

Modification of Continental IO-470 Pistons P/N 627738, P/N 539814, and P/N 631481 compression ring grooves from present ½ keystone configuration to rectangular configuration in accordance with Chrome Plate, Inc. Drawing GA-1 dated June 21, 1962 and revised March 15, 1963; Drawing GA-1-A dated July 2, 1962; and Drawing GA-2-A dated February 28, 1966 revised May 16, 1972. Piston rings CC-70-C according to Drawing CC-70-C Revision C dated January 11, 1972 are to be used with this modification.

The installer must determine whether this design change is compatible with previously approved modifications. If the holder agrees to permit another person to use this certificate to alter the product, the holder must give the other person written evidence of that permission.

Date of Application: June 2, 1962 Date Reissued: 8/27/07; 7/20/15; 1/25/16; 10/31/16 Date of Issuance: February 4, 1963 Date Amended: 6/6/63; 4/6/66; 6/13/72; 1/11/83 Revision 4

Signature

Title James A. Grigg Acting Manager, Fort Worth Aircraft Certification Office, Southwest Region Continental Motors Inc.

2039 S. Broad St.

Mobile, AL 36615

FAA Form 8110-2 (5/14) Page 2 of 2

Transfer the ownership of Supplemental Type Certificate Number: SE94SW

To (Name and address of transferee)

From (Name and address of grantor)

FAA Form 8110-2 (5/14) Page 3 of 3