WASHINGTON (CN) – The Federal Aviation Administration has issued airworthiness directives for three helicopter safety issues.
Bell Helicopter 205B and 212 helicopters with certain main rotor blade assemblies must have the blade checked for cracks. The FAA received two reports of fatigue cracks in blades on 212 helicopters, which share assemblies with the 205B model. The problem can cause the blade to come off in flight.
The mounts for Sikorsky Aircraft Corporation S-92A helicopters’ main gearboxes must be cleaned and checked for cracks, since cracking could cause the gearbox to leave the helicopter while the aircraft is in use.
The fuel pump on Turbomeca Arriel 2B and 2B1 turboshaft helicopter engines may have a screw loose which, could cause the fuel flow to slow or stop midair. These engines appear on certain Eurocopter models, among other helicopters.
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