The NTSB reported on Nov 24th, that the airplane climbed through 4260 feet at a speed of 252 KIAS, when the airplane hit 6 or 7 geese. The right hand engine spooled down to flight idle. When the crew tried to advance the throttle levers, the right hand engine experienced a number of serious compressor stalls, passengers describing fireballs being released by the engine. The crew declared emergency and returned to Kansas. Visual inspection revealed damage to both engine inlets, boroscopic inspection showed however that only the right hand engine had sustained internal damage.