Page:CAB Accident Report, United Airlines Flight 21.pdf/49



The controls and instruments located in the pilot's cockpit were either completely demolished or so badly damaged by impact that readings could not be taken or the indications could not be relied upon. The throttles were in a closed position. The ignition switches were in the "both-on" position, and the master switch was "on". The aileron and rudder tab controls were set at zero degrees, while the elevator tab control was set at 1 degree "nose-up" position. The flap valve handle was in the fully down position and the landing gear handle in the neutral position. All controls were checked and found to be intact from the cockpit to the point of attachment. All fuel and oil lines were intact from the nacelle to the fuel tanks and were checked for signs of water or foreign substances. The fuel valves were badly damaged but were found open to the main tanks.