mandag 22. august 2016

B787 alvorlige motortilfeller i denne måned - AeroIntel & Curt Lewis

Airline Incidents for aircraft type Boeing 787-8 Dreamliner

Home >Incidents and Accidents > Boeing 787-8 Dreamliner

Aircraft Details
ManufacturerBoeing
Model787-8 Dreamliner
ICAO Type DesignatorB788
DescriptionLandplane
Engine Type/CountJet / 2
Wake Turbulence CategoryH
Incidents on file98

Boeing 787-8 Dreamliner / N26902 by InSapphoWeTrust (license CC by-sa)
                          

JA840A
ANA B788 at Tokyo on Aug 14th 2016, rejected takeoff due to engine failure (Published on 15.08.2016)
An ANA All Nippon Airways Boeing 787-800, registration JA840A performing flight NH-959 from Tokyo Narita (Japan) to Shanghai (China) with 240 people on board, was accelerating the engines for takeoff... read more
VH-VKK
Jetstar B788 near Guam on Aug 6th 2016, engine shut down in flight (Published on 12.08.2016)
A Jetstar Boeing 787-800, registration VH-VKK performing flight JQ-12 from Tokyo Narita (Japan) to Coolangatta Gold Coast,QL (Australia) with 320 people on board, was enroute at FL400 over the... read more

Boeing 787 Engine-Failure Investigations Underway

LOS ANGELES-Boeing, General Electric and Rolls-Royce are investigating two different engine issues that struck Boeing 787s in the Asia-Pacific region on Aug 14. 

GE is tearing down and inspecting a GEnx-1B which the crew of a Jetstar Airways 787-8 shut down inflight, enroute from Tokyo to Coolangatta, Australia. The aircraft, with 320 passengers on board, diverted to Guam after an oil-pressure warning.

GE said it is premature to speculate whether the problem was related to issues with the transfer gearbox, which is currently subject to inspection and replacement under a fleetwide service bulletin. "More investigative work has to occur," the engine maker said.

"More than half of the 600 GEnx engines with the specific gearbox experiencing issues have received new modified versions, and progress is moving fast. By the end of the year, we expect the entire fleet of 600 engines to be retrofitted," GE added.

The gearbox issue has been traced to wear on the pinion gear within the gearbox. The wear, in turn, was found to cause excessive vibration and, ultimately, a shutdown. The pinion gear has been redesigned to correct the problem, according to GE.

Rolls-Royce, meanwhile, is working with Boeing and All Nippon Airways to investigate the cause of a Trent 1000 failure which forced a Shanghai-bound 787-8 to abort take-off from Tokyo Narita Airport.

The incident, which affected the left (No. 1) engine, occurred about 10 sec. into the take-off run, and was accompanied by a loud bang and the emission of flame from the primary exhaust nozzle and bypass duct.
GE orders gear change to prevent 787 engine shutdown

About 600 Boeing 787 engines will be modified by the end of the year to correct a transfer gearbox problem suspected in several in-flight shutdowns.

About half of the affected engines have been upgraded with a redesigned pinion gear within the transfer gearbox, GE Aviation says.

Wear on the pinion gear has led to excessive vibration, ultimately causing shutdowns of the engine.

GE adds that investigators have not determined the cause of an in-flight shutdown on 7 August by a GEnx-1B-powered Jetstar 787-8.

The 787-8, registered VH-VKK, diverted to Guam, according to the Australian Transport Safety Board.

The aircraft entered service on 16 July 2015, according to the Flight Fleet Analyzer database.

The redesign of the pinion is the second on-going service bulletin on the GEnx-1B engine.

Earlier this year, the US Federal Aviation Administration also directed airlines to modify the tip clearances for the fan blades. Otherwise, the blades can rub against the case in some cases due to ice shedding.

About 80% of the installed GEnx-1B fleet has completed the tip clearance modification, GE says.

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