An undated file photo shows the Philippine Air Force (PAF) "Nomad" plane which crashed January 28, 2010, on the runway in Cotabato city, southern Philippines.
Filipino investigators work at the site of a Philippine Air Force plane crash on January 28, 2010 in the southern city of Cotabato, Maguindanao Province, Philippines. The Air Force plane was carrying eight members of the Philippine Air Force that were all killed in the accident. The plane crashed into several homes in a residential area before bursting into flames, shortly after takeoff. The dead included Maj. Gen. Butch Lacson, commander of a division of the Philippine Air Force, two pilots and five crewmen.