As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IB SURFACE ADJACENT TO PITCH HORN WORN BEYOND LIMITS DUE TO "TT" STRAP FAILURE, OB LAMINATE OF 20/21 PLATES BREAKS. THIS PROBLEM OCCURS WHEN STRAPS BREAK INTO 2 PIECES AND BROKEN ENDS VIBRATES LIKE A REED, BEYOND THE HEAT SHRINK. SUGGEST MFG THICKENS OB PLATES OR ALTERS DESIGN OR USES LONGER HEAT SHRINK COVER THAN NORMAL. (K)