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of its take off direction. Both the right and left wings were damaged extensively due to impact with the trees. The right engine was found to be twisted and almost torn loose from its mountings due to sideways motion of the aircraft on the ground. The left engine was found to be in its normal position on the aircraft and apparently had incurred only minor damage. Inspection of the blade settings of both propellers revealed them to be normal and up against the low pitch stops. The blades of both propellers were bent slightly rearward, indicating that little power was being developed at time of impact. No malfunctioning of failure was observed in the control systems, and no damage to the aircraft and engines was disclosed other than that caused by impact with obstacles beyond the runway. The brakes were removed, bench checked and found to be in normal serviceable operation. Further brake tests were conducted by installing them on another aircraft when it was found that they operated satisfactorily. Examination of both tires revealed scuff marks that coincided with the wheel marks on the runway and also with the pilot's statement of his application of the brakes on the runway. The flaps were found to be fully retracted.

An inspection of the maintenance records of this aircraft indicated that it was in an airworthy condition at the time of departure from Montreal. The pilot and copilot testified that no difficulty with the aircraft or aircraft equipment were experiences during the flight from Montreal to Burlington. 

Weather briefing of the flight was by Canadian Meteorologists at Dorval Field, Montreal. The briefing indicated that a front existed across the route between Montreal and New York in a pressure trough that extended westward into the Mississippi River Valley. Wave development was occurring on the front. The wave development which had a direct bearing on weather