http://avherald.com/h?article=507b5bbb&opt=0(I attached the audio)
An Alaska Airlines Boeing 737-800, registration N525AS performing flight AS-1263 from Los Angeles,CA to Redmond,OR (USA), was cleared for takeoff from Los Angeles' runway 25R and was accelerating for departure when about 50 seconds after receiving the takeoff clearance the crew announced they were aborting takeoff on the runway advising they had hit some foreign object debris on the runway, cabin said about 10-15 feet long, probably a piece of rubber. The piece was probably between the 10 and 9 marker. The aircraft slowed safely and returned to the apron, the crew advising they were concerned about the debris having gone into their engines.
The aircraft remained on the ground for about 13 hours and just now returned to service.
The FAA reported: "AIRCRAFT STRUCK A PIECE OF RUBBER ON DEPARTURE ROLL, ADBORTED DEPARTURE AND RETURNED TO GATE, LOS ANGELES, CA.", the damage was "UNKNOWN".
