On Sept. 21, 2014, the flight crew commanding a Delta Air Lines Boeing 747-400, reacting quickly to an engine power loss just after liftoff at Atlanta Hartsfield-Jackson International Airport, shut down the aircraft’s No. 4 engine. The pilots then discharged two fire bottles into the laboring Pratt & Whitney PW4056’s nacelle, wiping out an onboard fire warning after about 80 sec. They spent the next 80 min. cruising around and dumping about 280,000 lb. of fuel in preparation ...

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