Alert 04 – 22 Rig Carrier Drives Off Accidentally
WHAT HAPPENED:
In the process of jacking up the parked Carrier rig on ground, the injured, a rig mechanic, was installing the 6th jack on the Carrier. As the Maintenance Supervisor shifted the Cotta Transmission lever from‘ Road’ to ‘Hoist’, the engine RPM suddenly increased and Carrier started to drive forward by itself. When the Rig Supervisor immediately shifted the lever back to ‘Road’, the Carrier drove further and finally halted after striking the gate hut.