The travelling block of a work-over rig struck the crown of the derrick. After the block hit the crown, the derrick tilted slightly away from the rig floor towards draw works, resulting in failure of...

An electrical supervisor conducting a walkabout after a pre-start noticed smoke and heard a strange noise coming from a generator. Assuming it could be running out of fuel, he lifted the access cover...

After a cleaning pig run of an oil pipeline, the pig (pipeline inspection gauge) was cleaned, dismantled, checked and reassembled. A cotter pin was required to complete the job. A worker involved in...

At the beginning of a work-over operation on an oil well, a mobile lighting tower was erected to provide light during night activities. A few days later, the tower fell onto the lighting plant...

A new member of a drilling crew was asked to clear excess drill cuttings around a “possum belly”. Also known as a distribution box or flowline trap, this part of a drilling rig slows the velocity of...

During a mechanical inspection of the crown block on top of a drilling derrick, one of the turnbuckles on the side brake was found to be fractured. A decision was made to repair weld the turnbuckle...

A hydraulic cylinder used to lower and raise a rig’s derrick was found to be faulty and was replaced with a substituted part, rather than that supplied by the original equipment manufacturer (OEM)...

During a tong jaw change-out operation on a rig floor, a crew member tapped the tong jaw into position using a rubber mallet to insert the pin while two other crew members held the tong to stabilise...

In late 2010 when a well site was being demobilised, a handrail fell from the sub-base walkway of a draw works skid being moved and struck a worker walking below at ground level. The initial contact...

A gas leak occurred at a compressor station when small bore pipework fractured. The incident resulted in a small natural gas release that was successfully resolved without harm, although the licensee...