Healthand and Safety Executive Dropped Objects 2010 Donald

Healthand and. Safety Executive Dropped Objects – 2010 Donald Dobson Health & Safety Executive Offshore Division

Dropped objects – quarterly totals

2010 - All Incidents

Derrick & Well Ops Incidents

Derrick & Well Ops Incidents • • Pipe-racker roller pin retaining block (1 kg) fell 15 m to rig floor Tong counterbalance line sheave (11 kg) came free & fell 30 m to rig floor (securing pin backed out) Stand of drill pipe (840 kg) slipped out of racker arm & dropped 1 m to rig floor (operator error) Lump of lubricant (2 kg) fell to rig floor from crown block (51 m) Tugger wire snagged on blocks, wire parted & fell to rig floor Recovering wireline prong (1. 7 kg) from test tree, tool detached and fell 10 m to rig floor Picking up a joint of 3 -1/2” drill-pipe, a drift (2. 7 kg) fell out 10 m to the rig floor

Crane & Lifting Operations

Crane & Lifting Operations • Accommodation service lift cage dropped to lower level; hoist rope severed • Moving containers, safety latch (0. 7 kg) from crane main block detached and fell 26 m to deck • Picking up waste skip, slings ejected contents which fell 10 m over handrail to deck below • Moving diesel tote tank, it snagged and dislodged handrail which fell into sea • Moving container, it struck handrail, opening door; battery (25. 7 kg) inside fell 3. 7 m to work platform

Other dropped objects

Other Dropped Objects • • • Mobile toilet roof panel (35 kg) detached by helicopter downdraft & fell 2. 5 m (corroded bolts) Steel plate (5 kg) from flare stack fell 60 m to derrick monkey board, dislodged by high wind Redundant light fitting (25 kg) detached and fell 9 ft to landing after painter brushed against it Helicopter downdraft dislodged packing case from LCC roof 7. 5 m to walkway below Shackle lying loose on drum fell over side of jack -up onto deck of platform below Replacing grating (46 kg), crew lost grip and dropped it through space 10 m to deck below