What was found
WHILE PERFORMING 5-YEAR WING BOLT INSPECTION, NOTED FORWARD LOWER RT WING BOLT/NUT WAS INSTALLED BACKWARDS. LOGBOOKS REVEALED BOLT INSTALLED 5 YEARS PREVIOUSLY BY A BEECH SERVICE CENTER AND TORQUE CHECKED AT ANOTHER BEECH SERVICE CENTER AND NUMEROUS 150-HOUR INSPECTIONS ACCOMPLISHED WTHOUT BEING DETECTED. UPON REMOVAL, SPAR FITTING FOUND DAMAGED (REMOVAL OF BOLT CAUSED A WRENCH TO BE BROKEN AND BOLT HAD TO BE WRENCHED ALL THE WAY OUT OF FITTING DUE TO EXCESSIVE PRESSURE ON FITTING). ACFT FERRIED TO VNY FOR SPAR REPLACEMENT.