Prove the cause of UPS cargo plane crash that killed the pilot, two jumbo.

Officials said they have not recovered the black box to determine why a UPS cargo plane crashed jumbo Wednesday morning just outside of Birmingham, Ala the airport, killing both pilots.
NTSB member Robert L. Sumwalt said at a news conference Wednesday that the tail of the plane was still smoldering, researchers have not been able to gain access to the cockpit voice and flight data recorders have. But researchers are on. Scene for a number of days.
Sumwalt said a preliminary investigation of the crash indicates that the pilot and the pilot did not make any distress call before the impact.
UPS spokesman confirmed that the UPS-300 Airbus aircraft MyFoxAL.com tail number N155UP with two crew members on board. The flight took place in Louisville, Kentucky, and crashed, according to the Birmingham-Shuttlesworth. International Airport before dawn.
The plane crashed in a field outside the airport fence and a white plume of smoke seen rising from the site. Emergency crews respond to the crash.
UPS said it is in the process of informing shippers of all packages on the flight.
Sharon Wilson, who lives near the airport, said she was in bed before daybreak, when she heard a sound like a plane engine sputtering to her house.
"It sounded like the plane was out of fuel. We think it is an attempt to make it to the airport. But a few minutes later we heard a loud ', "she said.
Another resident Jerome Sanders lived across the runway. He said he heard the plane just before dawn and could see flames seconds before it crashed.
"It was on fire before it hit," Sanders said.
National Transportation Safety Board to the team from Washington DC to check errors. The scene is about a half mile north of runway 18 at the weather, rain and low clouds.
"In many parts of the aircraft," Birmingham Mayor William Bell, who has been briefed on the situation by the city's fire chief, said: "There are two to three small explosions, but we thought. that is related to fuel flight ".
Previously UPS cargo plane crashed on September 3, 2010 in the United Arab Emirates, Dubai, only outside. Both pilots were killed. Officials have blamed the crash on the loading of between 80,000 to 90,000 lithium batteries, which are sensitive to temperature. Researchers found that the fire likely started on board in cargo with battery

Prove the cause of UPS cargo plane crash that killed the pilot, two jumbo.