What was found
(CAN) WHEELS AND BRAKES PREVIOUSLY MODIFIED PER STC AND DWGS. DUE FOR 100 HR INSP. RT BRAKE FOUND LEAKING, O-RINGS. RT SIDE BOTH BRAKES O-RINGS FOUND FRIED ONTO CASING AND STICKING TO PISTONS. SHIM PIPER 762421, CLEVLAND 68-30, MISSING ON ONE BRAKE AND HOME MADE METAL SHIMS FOUND ON TWO LININGS AND MISSING ON THIRD. LT, BOTH SHIMS MISSING, O-RINGS HEATED. NO LOCK WASHERS ON BOLTS. REPLACED.