Sunday, October 2, 2011

AIRBUS A380 pylons at risk of overheat problems

The pylon structure of A380
The European Aviation Safety Agency said today in a proposed airworthiness directive which would require carriers to install ventilation holes in some of the panels covering the pylon structures of superjumbo AIRBUS A380,the equipment that connects the plane’s engines to its wings, safety regulators said, citing a risk of overheating that could cause a fire.

Test flights revealed a buildup of heat in the pylons of A380s equipped with Rolls-Royce Holdings Plc Trent 900 engines, 

“This condition could, in case of a heavy fuel leak, lead to an ignition of fuel vapors, possibly resulting in a fuel fire and consequent damage to the aeroplane and/or injury to its occupants,” EASA said in the directive, which is open for consultation until Oct. 28. If made mandatory, the modifications would have to be implemented within a 10-month period, it said.

Australian carrier Qantas Airways Ltd. (QAN) grounded its A380s for 23 days last year after a Trent 900 failure prompted an emergency landing in Singapore on Nov. 4. Rolls-Royce has since carried out modifications to address issues with a faulty oil pipe, and the glitch disclosed today is unrelated, Airbus said.

The planned directive would affect the Trent-equipped -841 and -842 variants of the A380, all manufacturer serial numbers, except for planes that have already been modified, EASA said.

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