Circular 56
CORRIGENDUM No. 2
16/3/60
(Accident Digest No. 9)
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,Owing to a printing error in the Canadian lccident Reports Serial loso 56-17 and 57-2, Summary No. 15 in the Ucraft Accident Digest No. 9 ircular 5AN/51 inadvertently includgd material from the two reports. Pages 88 tand 89 of the Digest should, therefore, be csncelled and the attached pages substituted.
CORRIGENDUM No. 2 16/3/60 Accident Digest No. 9 ICAO Circular 56-/51 88 No. 15 World Wide Airways, Inc., Douglas DC-3, CF-JNN, struck the ground following loss of altitude in the vicinity of Fox, North West Territories, on 5 April 1957. Report by Department 'of Transport, Canada, Serial No. 57-2 Circumstances The aircraft departed Fox at approx- imately 1706 hours Eastern Standard Time on a flight calling at various DEW Line sites and intending to return to Fox. At 2157 hours, on the last flight, the captain called Fox tower and gave the estimated time of arrival as 2207 hours. In his state- ment the captain said that he passed over the site at Fox and made a descending turn to the left to join the circuiton the downwind leg for runway 36. Shortly after levelling off on the downwind leg, the aircraft lost altitude 700 to 800 feet and struck the ground in what appeared to have been an almost straight and level attitude. The pilot-in-command suffered minor injuries. Investigation and Evidence The pilot-in-command had accumu- lated a total of 3337 hours of flying experi- ence, of which 2000 hours had been ac- quired on Douglas DC-3 type aircraft. He had flown 249 hours during the previous 90 days. The co-pilot had accumulated a total of 4280 hours of which 2350 were on Douglas DC-3 type aircraft. He had flown 167 hours during the previous 90 days. At the time of the accident the cap- tain and the co-pilot had been on duty for 17 hours during which time they had flown for about 10 hours and made 20 take-offs and 19 landings. No evidence was found to indicate malfunctioning of the airframe, engine or controls. The weight of the aircraft was well below the maximum permissible and the centre of gravity was within limits. No definite reason could be found for the aircraft's loss of 700 - 800 ft of altitude. Weather was not considered to have been a factor in the accident. Probable Cause While trying to fly visually at night without adequate reference to instruments, the pilot' a1lowe.d the aircraft to lose alti- tude while on the downwind leg of the circuit the aircraft struck the ground with wheels down in a slightly nose down attitude. ICAO Ref. AIG/ACC/REP/GEN/NO. 1
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