Other Limitations

Question 1

Alternate flaps duty cycle

Answer 1

• When extending or retracting flaps with the ALTERNATE FLAPS position switch, allow 15 seconds after releasing the ALTERNATE FLAPS position switch before moving the switch again to avoid damage to the alternate flap motor clutch
• After a complete extend/retract cycle, i.e., 0 to 15 and back to 0, allow 5 minutes cooling before attempting another extension.

Question 2

Wx radar limitations

Answer 2

Avoid weather radar operation in a hangar, or within 50 feet (15.25 meters) of fueling operations or a fuel spill.

Avoid weather radar operation when personnel are within the area normally enclosed by the aircraft nose radome.

Question 3

Fuel system limitations: temp., loading, imbalance

Answer 3

Maximum tank fuel temperature is 49°C.
Minimum tank fuel temperature prior to takeoff and inflight is - 43°C, or 3°C above the fuel freezing point temperature, whichever is higher.
Lateral imbalance between main tanks 1 and 2 must be scheduled to be zero. Random fuel imbalance must not exceed 453 kgs for taxi, takeoff, flight or landing.
Main tanks 1 and 2 must be full if center tank contains more than 453 kgs.