Patent ID: 8371803

Claim:
A fan casing assembly for a gas turbine, the assembly comprising: a fan casing for surrounding a fan; a resilient, flexible containment material around an outside of the fan casing for containing a detached fan blade that breaches the fan casing during a fan blade off event; and a retaining cable arrangement for resisting separation of a first and second portion of the fan casing as a result of the detached fan blade that breaches the fan casing, wherein the cable arrangement comprises: a length of retaining cable on an outside of the containment material, the length of retaining cable being anchored at each end to a fixed anchorage on the first portion of the fan casing and further being slidably or rollably secured to the second portion intermediate the two ends to form respective cable spans between the fan casing portions, there being sufficient overall slack in the cable for accommodating radial deflection of the underlying containment material upon impact of the detached fan blade.