What was found
(CAN) ELEVATOR GUST LOCK UNSERVICEABLE. ON DISASSEMBLY BOTH THROUGH BOLTS WERE FOUND SEVERELY CORRODED. FAILURE OF THESE BOLTS COULD CAUSE THE PLUNGERS TO FULLY EXTEND CAUSING THE ELEVATOR TO JAM. INADEQUATE LUBE PROCEDURE IS CAUSE. DE HAVILLAND IS AWARE. SB 8-55-14 REV.B WILL BE CLARIFIED BY DE HAVILLAND, AND ISAR 97-01-2770 RELEASE TO PROVIDE INFO.