STC ST108CH

Part 25 of the Federal Aviation Regulations.

See Type Certificate Data Sheet A53CE for complete certification basis.

Installation of SISU Services, Inc. Wheel Flange Abrasion Liner P/N SS6856-01 in accordance with SISU Services, Inc., Service Instructions, P/N SS6856-01, Revision IR, dated 5/1/93 and SISU Services, Inc., Wheel Flange Abrasion Liner, P/N SS1752-I and SS1752-O, in accordance with SISU Services, Inc. Service Instructions P/N SS1752-I and SS17752-O, Rev. IR, dated August 8, 1994, or later FAA Approved Revisions.

1) The installer must determine whether this design change is compatible with previously approved modifications.

2) If the holder agrees to permit another person to use this certificate to alter a product, the holder must give the other person written evidence of that permission.

AIREPAIR, LLC 130 S. Van Rensselaer Street Rensselaer, IN 47978 A53EU Make : Aerospatiale Model : ATR42-200, -300, -320; ATR72-101, -102, -201, -202, -211, -212

Date of application : May 14, 1993

Date of issuance : September 1, 1993

Date reissued : April 7, 2008

Date amended : May 5, 1995

( Signature) Charles L. Smalley Systems & Flight Test Branch Chicago Aircraft Certification Office

( Title)

FAA FORM 8110-2-1(10-69) PAGE 3 of 3 PAGES