Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. NTSB: Pilot of Kobe Bryant's Helicopter Climbed to Avoid Cloud Layer VOA News The pilot of the helicopter that crashed and killed basketball superstar Kobe Bryant apparently climbed to avoid a cloud layer just before slamming into a hillside, federal investigators say. Jennifer Homendy of the National Transportation Safety Board said Monday the copter was about 700 meters off the ground before it plunged more than 300 meters into the hills north of Los Angeles. Air traffic say the pilot's message that he had to climb to avoid the clouds was the last thing they heard from the copter. Homendy says the debris field is "extensive." "A piece of the tail is down the hill, the fuselage is on the other side of that hill and the main rotor is about 91 meters beyond that," she said, adding that everything is looked at during the investigation -- the pilot, the aircraft, and the environment. Federal rules do not require helicopters to carry black boxes. .