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Air India 787 grounded for engine
inspection, repair
An Air India Boeing 787-8 is grounded through at least 23 August
while GE Aviation inspects a potential fault in the accessory
gearbox of both GEnx-1B engines installed on the aircraft, the
engine maker says.
while GE Aviation inspects a potential fault in the accessory
gearbox of both GEnx-1B engines installed on the aircraft, the
engine maker says.
GE employees plan to complete the inspection and make replace
the gearboxes, if necessary, by 23 August, clearing the aircraft
to return to flight status, says a GE spokesman.
the gearboxes, if necessary, by 23 August, clearing the aircraft
to return to flight status, says a GE spokesman.
The same problem potentially affects a population of eight
GEnx-1Bs and GEnx-2Bs with accessory gearboxes made by
Avio, which is now a GE subsidiary.
GEnx-1Bs and GEnx-2Bs with accessory gearboxes made by
Avio, which is now a GE subsidiary.
GE recently discovered that eight accessory gearboxes could
have been made using an improper heat-treating process during
production.
have been made using an improper heat-treating process during
production.
The discovery was made after an accessory gearbox failed
on a 5 August flight by a Thomson Airways787-8, the GE
spokesman says. The flightcrew commanded an engine
shutdown and made an emergency landing.
on a 5 August flight by a Thomson Airways787-8, the GE
spokesman says. The flightcrew commanded an engine
shutdown and made an emergency landing.
The Air India 787-8 is the only such aircraft in service that
is equipped with both engines that are among the population
of eight with the potential heat treatment problem, the spokesman
says.
is equipped with both engines that are among the population
of eight with the potential heat treatment problem, the spokesman
says.
GE plans to complete inspections and make any necessary
replacements within a few days, the spokesman adds.
replacements within a few days, the spokesman adds.
[UPDATE: Adds the GEnx-2B to the pool of affected engines and
clarifies that GE has not determined that all eight gearboxes were
made improperly.]
clarifies that GE has not determined that all eight gearboxes were
made improperly.]
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