Mexico. The cause of the accident was that the cargo was improperly secured and shifted in flight, causing the centre of gravity to move aft. 28 February Douglas C-47A C-FBZN of Transfair crashed near La Grande-LG-4 airstrip in the Canadian province of Quebec, following an engine failure. The crankshaft of the engine broke between the two rows of cylinders, creating circumstances that made it very difficult for the crew to recognize that the engine had failed. The aircraft was on a cargo flight destined to land at Lac Bienville. 1 March Douglas C-49J N28PR of Borinquen Air ditched on approach to Luis Muñoz Marín International Airport, Carolina, Puerto Rico following a failure of the port engine. Although the landing gear was retracted, the crew did not feather the propeller. This resulted in increased drag which made flight impossible. The aircraft was on an international cargo flight from Golden Rock Airport, Saint Kitts and Nevis. 2 May In the United States, Douglas C-47A N28889 of Monroe County Mosquito Control District crashed at Summerland Key, Florida after striking mangrove trees whilst spraying. The aircraft was operating out of Marathon Flight Strip at the time. Both crew were killed. 6 May Douglas C-47A RP-C82 of Manila Aero Transport System crashed on take-off from Manila International Airport in the Philippines following an engine failure. The aircraft was being used on a domestic non-scheduled passenger flight although it was not licensed to carry passengers. All 18 people on board survived. 21 May Douglas C-47A C-GWYX of Central Mountain Air Services made a forced landing at Bronson Creek in Canada following an in-flight engine fire. The aircraft was subsequently destroyed by the fire but both crew escaped. The aircraft was on an international cargo flight from Wrangell Airport, Alaska to Bronson Creek Airport. 22 May Douglas C-47A N47CE of Condor Enterprise crashed in the United States at Waterman, Illinois, from DeKalb Airport, Illinois whilst on a training flight from Sugar Grove Airport to Chicago Rockford International Airport. All three crew were killed, including pilot Karen Ulane. 26 June In the United States, Douglas C-47A N8042X of California Air Tours ditched off Petersburg, Alaska following the loss of fabric from an aileron and the breaking of the chain connecting the left control wheel to the aileron control system; and the pilots' subsequent incorrect assessment of the degree of controllability of the aircraft. The aircraft was on a