Cause & Consequence
WHAT CAUSED IT:
The parts were stored in the warehouse together with similar pins;
The pins were not clearly labeled;
The incorrect pin, which was picked up, was for a different type tong model;
Rig personnel failed to recognize that they had received an incorrect pin.
CORRECTIVE ACTIONS: To address this incident, this company did the following:
Reorganized tong pins into separate bins in the warehouse;
Required that the tong pins going forward be clearly identified and labeled;
Instructed the warehouse staff of the new tong pin locations;
Instructed rig crews to verify replacement parts that do not look right and/or fit correctly;
Required crew to check the torque specifications for tongs prior to use.
[NOTE: Manual drill pipe tongs are rated to maximum torque of 100,000 ft./lbs. When applying torque to drill collars, ALL PERSONNEL must stand clear of the area.]