What was found
LT LANDING GEAR TRUCK POSITION CYLINDER PISTON RETAINING RING HAD SHEARED FROM THE THREADED PORTION. LOST C-SYSTEM HYDRAULICS ON LANDING, CAUSED AUTO GROUND SPOILERS FAIL. REPLACED ACTUATOR, OPERATION NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LT LANDING GEAR TRUCK POSITION CYLINDER PISTON RETAINING RING HAD SHEARED FROM THE THREADED PORTION. LOST C-SYSTEM HYDRAULICS ON LANDING, CAUSED AUTO GROUND SPOILERS FAIL. REPLACED ACTUATOR, OPERATION NORMAL.