Helicopter that ditched in North Sea 'had faulty gearbox'
Sunday 13 May 2012
A helicopter which ditched in the North Sea last week while carrying 12 passengers and two crew members suffered a fault in its gearbox, an early report suggests.
Initial examination of the EC225 Super Puma which ditched 25 miles off the coast of Aberdeen on Thursday suggest it suffered a crack to a gearbox shaft, the Air Accidents Investigation Branch said.
Bond Offshore Helicopters, which operated the aircraft, suspended all EC225 flights after last week's crash while it investigates what happened.
The AAIB report into the latest crash says: “The crew of the helicopter carried out a controlled ditching following indications of a failure of the main gearbox (MGB) lubrication system and, subsequently, a warning indicating failure of the emergency lubrication system.
“The investigation has identified a 3600 circumferential crack in the bevel gear vertical shaft in the main gearbox, in the vicinity of a manufacturing weld, causing disengagement of the drive to both mechanical oil pumps.”
A gearbox failure was responsible the downing of a different model of Super Puma helicopter flying to Aberdeen from the Miller Platform in the North Sea in April 2009, causing the death of 14 offshore workers and two crewmen.
In a report in 2009 into the crash, the AAIB said the gearbox of the Eurocopter AS332L2 had suffered a “catastrophic failure” before it crashed into the sea.
- 2 Harry Potter fans can apply to the Hogwarts-inspired College of Wizardry
- 3 Jessica Chambers: 19-year-old woman 'doused with lighter fluid and burned alive' in the US
- 4 Russell Brand calls Nigel Farage 'poundshop Enoch Powell' in BBC Question Time debate
- 5 Orange Wednesdays are no more
Weather bomb in pictures: Storms cuts power for tens of thousands – and snow is on the way
Jessica Chambers: 19-year-old woman 'doused with lighter fluid and burned alive' in the US
Russell Brand calls Nigel Farage 'poundshop Enoch Powell' in BBC Question Time debate
Russell Brand was rendered speechless on Question Time by this man
Fury at Airbus after it hints the super-jumbo may be mothballed
Disgruntled RBS worker writes hilarious open letter to Russell Brand after anti-capitalist publicity stunt leaves him hungry
Nigel Farage defends Kerry Smith 'ch***y' comment: 'If you are going for a Chinese, what do you say you’re going for?'
Nigel Farage's approval rating hits 'record low' as popularity suffers in wake of Ukip sex scandal
Rozanne Duncan: Ukip expels councillor for 'jaw-dropping' comments made in BBC TV interview
Pakistan school attack live: Taliban kill at least 132 children in 'horrifying' massacre
Sony hack: Angelina Jolie branded 'seriously out of her mind' in further embarrassing leaked email saga
£30000 - £38000 per annum + pesion + holidays: The Jenrick Group: World Wide S...
£35000 per annum + Pension+Bupa: The Jenrick Group: We are recruiting for an e...
£43500 per annum + pension + holidays: The Jenrick Group: Night Shift Operatio...
£50000 per annum + pension + holidays: The Jenrick Group: Resident Maintenance...