(Photo courtesy of Pilar, Bataan Municipal Police Station) MANILA - The Philippine Air Force (PAF) is looking into materiel, meteorological, and human factors in determining the cause of Wednesday's crash of a Siai-Marchetti SF-260TP turboprop light attack aircraft that killed two pilots. In an interview with reporters on Thursday, PAF spokesperson Col. Ma. Consuelo Castillo said aircraft accident investigation teams have secured the crash site in Sitio Tabon, Barangay Del Rosario in Pilar town, Bataan as the probe is ongoing. "We (are looking) at all possible angles para po matunton natin yung (to trace the) real cause of the accident," she added. For the materiel angle, she said this would be investigated by examining recovered aircraft components and the last transmissions made by the pilots before the actual crash landing. This is to determine if there were problems encountered during the flight. "And then of course, we also have to look at possible human factors