Grumman, the manufacturer, had issued warnings as early as 1963 about fuel leaks from the Mallard's wing being indicative of possible structural problems, however for unknown reasons the airline did not consider this particularly relevant to its own aircraft.
Grumman had issued warnings as early as 1963 about fuel leaks from the Mallard's wing for unknown reasons. This was however. The airline did not consider this particularly relevant to its own aircraft unknown reasons. Grumman was being indicative of possible structural problems. The airline did not consider this particularly relevant to its own aircraft. This was for unknown reasons. Grumman was the manufacturer.