British engine manufacturer Rolls Royce is unable to confirm how many of its Airbus A380 engines may fail after last year’s Qantas near disaster near Indonesia because of a lack of records.
The Australian Transport Safety Bureau interim report regarding the engine explosion over Indonesia’s Batam Island on 04 November shows that an oil fire weakened an intermediate turbine disc in the aircrafts number two engine, causing the disc to separate from a shaft and disintegrate.
New reports released this week also declares the manufacturer failed to detect sub-standard oil feed pipes identified as the reason of the Qantas engine explosion in four engines for which it did have records.
Investigators discovered the Qantas oil pipe module known as module 51 was one of 42 FW48020 units manufactured between 2005 and 2008 for which Rolls Royce had no measurement records which meant that Rolls Royce was unable to determine whether those feed pipes had been manufactured to specifications, the report revealed.
“A subsequent risk assessment by Rolls Royce found that there should be a fleet-wide removal of the FW48020 standard engines from service,” The report said.
Investigators and Rolls Royce are examining how it failed to detect the manufacturing flaw in the modules prior and during the manufacturing.
A Qantas spokesperson said the A380’s had been operating without any related incident since the return to service of the fleet last November.
“We fully support the Australian Transport Safety Bureaus (ATSB) ongoing investigation and are actively addressing the points raised,” A Rolls Royce spokesperson said.
Source = e-Travel Blackboard: S.P