Date & Time:
Jul 17, 1975
Type of aircraft:
De Havilland DHC-3 Otter
Operator:
Registration:
9413
Flight Phase:
Takeoff (climb)
Flight Type:
Military
Survivors:
Yes
Site:
Lake, Sea, Ocean, River
MSN:
389
YOM:
1960
Country:
Canada
Region:
North America
Crew on board:
2
Crew fatalities:
0
Pax on board:
5
Pax fatalities:
0
Other fatalities:
0
Total fatalities:
0
Circumstances:
During take-off from a gravel bar along the edge of the Duke of York River, the Otter became airborne but did not gain altitude. Shortly thereafter, it contacted a steep gravel river bank, made a shallow turn to the right, settled into the river and slowly nosed over, coming to rest inverted in three or four feet of water. Water began to pour in on the two crew and five passengers, who were hanging upside down still strapped into their seats. They managed to free themselves and wade ashore.
Source: https://www.dhc-3archive.com/DHC-3_389.html
Source: https://www.dhc-3archive.com/DHC-3_389.html
Probable cause:
The accident report found that the pilot elected to take off from an “uncleared, austere airstrip” of unknown exact useable length, in unfavourable wind conditions, at or near maximum allowable gross weight. The aircraft captain had failed to brief his co-pilot and assign him the task of monitoring the cockpit instruments during the critical phase of the take-off. The air detachment commander was required to fly as a line pilot on a regular basis. This, together with being subordinate in rank to the Otter detachment commander, made effective control of flying operations virtually impossible.
