15-May-2012 Source: Bond Aviation Group
Bond Offshore Helicopters Ltd., one of the UKâ€™s leading providers of energy support services concur with the initial findings of the AAIB interim Service Bulletin S2/2012 issued which indicates component failure.
The bulletin states that, â€œAn initial visual inspection of the main gearbox has identified a 360Â° circumferential crack on the bevel gear vertical shaft, in the vicinity of the weld that joins the two sections. As a consequence of this failure, the main and standby oil pump gears ceased to be driven. During this inspection pump gears ceased to be driven. During this inspection it was observed that the lower part of the vertical shaft was displaced downwards by 6 mm.â€ This preliminary engineering investigation is consistent with Bondâ€™s own engineering analysis.
The maintenance procedures adopted by Bond Offshore Helicopters Ltd. are of the highest standards with safety being the companyâ€™s principal concern at all times. It was that focus on safety that was the reason behind the decision to suspend flights of the EC225 having considered the AAIB Service Bulletin. Bill Munro, Managing Director of Bond Offshore Helicopters said, â€The skill and training of Bondâ€™s pilots has been witnessed at first hand. Our passengers can be confident in Bond as the principal crew change operator in the North Seaâ€.
In the light of the AAIB interim Service Bulletin Bond Offshore Helicopters Ltd. will continue the flight suspension of the EC225 and now in addition the AS332L2 helicopter. Bond Offshore Helicopters Ltd. is working with Eurocopter as a matter of priority in finding a solution that will enable the helicopters to be returned to service.