DCA84AA034

At about 1118, a Beech C-99 (wings west flt 628), N6399U, & a rockwell 112TC, N112SM, collided in midair aprx 8 mi west-northwest of the san loui Obispo county arpt. The rockwell 112TC had departed paso robles, CA & was descending toward the san loui Obispo county arpt. The Beech C-99 had departed san loui Obispo & was climbing on a flt to san francisco. They collided head-on at about 3400 ft MSL in clear wx. The C-99 crew had just contacted los angeles ARTCC. At that time, the aircrews of both acft were governed by the 'see-and-avoid' concept with regard to each other. An investigationrevealed that the standard departure & instrument apch procedures shared a common track. The C-99 was departing along the departure track. Just prior to the collision, the 112TC crew had contacted UNICOM & reported at the dobra inter- section which was on the ILS apch course. After colliding, both acft crashed on open terrain & burned. The controller had only seconds to appraise radar data & issue a safety advisory. Wings west reqd 1 radio to be tuned to company freq.

At about 1118, a Beech C-99 (wings west flt 628), N6399U, & a rockwell 112TC, N112SM, collided in midair about 8 mi west-northwest of the san loui Obispo county arpt. The rockwell 112TC had departed paso robles, CA & was descending toward the san loui Obispo county arpt. The Beech C-99 had departed san loui Obispo & was climbing on a flt to san francisco. They collided head-on at about 3400 ft MSL in clear wx. The C-99 crew had just contacted los angeles ARTCC. At that time, the aircrews of both acft were governed by the 'see-and-avoid' concept with regard to each other. An investigation revealed that the standard departure & instrument apch procedures shared a common track. The C-99 was departing along the departure track. Just prior to the collision, the 112TC crew had contacted UNICOM & reported at the dobra intersection which was on the ILS apch course. After colliding, both acft crashed on open terrain & burned. The controller had only seconds to appraise radar data & issue a safety advisory. Wings west reqd 1 radio on company freq.