Piper Service Letter No. 216A
Applicability: All Piper Models
Issue Date: December 14, 1953
Subject: Replacement of Aileron Hinge Bearing Blocks
Summary: Repairs made in the aileron hinge bearing blocks utilizing dural rivets are unauthorized and all dural rivets must be removed and replaced with soft steel round head rivets of appropriate size.
Open PDF: PIP_SL0216A.pdf