Preliminary Reports

The airplane sustained substantial damage at about 1434 Eastern time when it collided with terrain during a low altitude aerobatic maneuver. Visual conditions prevailed; the solo airline transport pilot was killed. The intended 15-minute airshow routine of the accident flight consisted of six airplanes. The accident occurred during an opposing pass involving the accident airplane and another T-28. The pilot of the second T-28 reported he and the accident pilot were laterally displaced and flying towards each other.

At about 1100 Pacific time, the airplane experienced a loss of engine power on final approach. The pilot subsequently landed short of the intended runway. The airline transport pilot was not injured. The airplane sustained substantial damage to the forward portion of the fuselage and wings. Visual conditions prevailed.

The airplane collided with the ground at about 0850 Pacific time and was consumed by a post-impact fire. The solo private pilot sustained serious injuries. Visual conditions prevailed. Witnesses reported the pilot was conducting aerobatics over the runway when the airplane impacted terrain adjacent to the airport perimeter fence.

At about 0922 Pacific time, the airplane sustained substantial damage after impacting terrain following a loss of control during initial climb. The solo private pilot sustained serious injuries. Visual conditions prevailed. According to a witness, the airplane initially climbed to an altitude of between 50 and 100 feet agl before it began to veer to the left. The airplane then simultaneously pitched up to about a 30-degree angle, and then entered a left-wing-down, nose-down attitude.

The airplane was substantially damaged at about 1005 Mountain time during a forced landing after a partial loss of engine power. The solo airline transport pilot was not injured. Visual conditions prevailed. The pilot reported a satisfactory preflight inspection and run-up. After taking off from the 6764-foot-elevation airport and at about 500 feet agl, he detected a vibration in the engine and observed the manifold pressure drop from 25 inches to 20 inches and the rpm drop from 2500 to 2300. The pilot turned on the fuel boost pump, but no change in engine performance was observed.

The airplane, operated by United Airlines, experienced a bird strike in its left engine while landing. Examination of the engine revealed all the fan blades were damaged, with three fan blades fractured. The left engine inlet cowl exhibited numerous impact marks on the inner barrel skin with two penetrations forward of the engine fan case.

At 1715 Eastern time, the airplane experienced a nose gear collapse during landing rollout. Visual conditions prevailed. The airplane received structural damage to the forward pressure vessel. The airline transport rated pilot and two passengers reported no injuries. After the pilot entered a right-hand traffic pattern and completed all pre-landing checklist items, the airplane touched down on the runway and the nose landing gear collapsed.

At 1055 Mountain time, the airplane experienced a loss of engine power during cruise flight and the pilot subsequently force-landed the airplane in a field. The private pilot sustained serious injuries and the airplane was substantially damaged. Visual conditions prevailed.

The airplane collided with the ground during initial takeoff climb at about 1111 Eastern time. Visual conditions prevailed. The airplane received structural damage to the left wing and airframe. The commercial pilot and three passengers reported minor injuries; one passenger received serious injuries.

At about 1115 Central time, the airplane impacted terrain shortly after takeoff. The two occupants received fatal injuries and the airplane was substantially damaged. Visual conditions prevailed.