COLD WEATHER OPERATIONS

Aircraft and their components are designed to operate within certain temperature ranges. If information about these ranges is not available, operators should consult the manufacturer as to precautions to be taken in extremely cold weather operations. Also the advice of operators and mechanics permanently located in the area of operation is of great value.

1. Aircraft Preparation For Cold Weather Operations

a) in extremely cold temperatures all oil lines, oil pressure lines and tanks, in aircraft with reciprocating engines, should be inspected for proper insulation to preclude the possibility of oil congealing. Insulation must be fireproof and the installation accomplished by an experienced mechanic.

b) baffles, winter fronts and oil cooler covers are recommended by some manufacturers (check for manufacturer’s approval)

c) check if oil and grease grades are as those specified by the manufacturer