STC SA01017SE

Number SA01017SE

This certificate, issued to Aviation Development Corporation 1305 NW 200th Seattle, WA 98177 Part 4a of the Civil Air Regulations.

Original ProductType Certificate Number: A-2-575 Make: Rockwell International Corporation Model: BC-1A, AT-6, AT-6A, AT-6B, AT-6C, AT-6D, AT-6E, AT-6F, T-6G

Description of the Type Design Change: Installation of Aviation Development Corporation Oil Filter together with a chip detector in accordance with Drawing List DL0010, New Release, dated September 1, 2001.

Limitations and Conditions: Approval of this change in type design applies to the model aircraft listed above only. This approval should not be extended to aircraft of these models on which other previously approved modifications are incorporated unless it is determined by the installer that the relationship between this change and any of those other previously approved modifications, including changes in type design, will introduce no adverse effect upon the airworthiness of that aircraft. A copy of this Certificate and Airplane Flight Manual Supplement UFCD0010, dated November 14, 2001, must be maintained as part of the permanent records for the modified aircraft.

This certificate and the supporting data which is the ba sis for approval shall remain in effect until surrendered, suspended, revoked, or a termination date is otherwise established by the Administrator of the Federal Aviation Administration.

Date of application: June 14, 2001 Date reissued:

Date of issuance: November 15, 2001 Date amended:

(Signature) Acting Manager, Seattle Aircraft Certification Office (Title)