Specifications

SECTION V
MODEL 560 ABNORMAL PROCEDURES
WING ANTI-ICE FAILURE (WING ANTI-ICE L OR R CAUTION LIGHT ON AND MASTER CAUTION)
1. Throttle (affected side) - INCREASE THRUST (as required above 70% N
2
).
IF WING ANTI-ICE LIGHT REMAINS ON
2. WING XFLOW Switch - ON.
3. Throttle (opposite side) - INCREASE THRUST (as required above 70% N
2
).
IF WING ANTI-ICE LIGHT STILL REMAINS ON
4. L/R WING/ENG Anti-ice Circuit Breaker (affected side) (LH panel) - PULL.
CAUTION
RESPECTIVE WING AND ENG ANTI-ICE ANNUNCIATORS WILL BE INOPERATIVE
AND THE WING/ENGINE ANTI-ICE VALVES WILL OPEN. AFFECTED WING
OVERHEAT PROTECTION WILL BE DISABLED.
5. Monitor wing leading edges. If any significant ice accumulates on the heated surface, the
affected side must be considered inoperative.
NOTE
The outboard 32 inches of each wing is unheated and ice will accumulate with the
wing anti-ice operating normally.
6. Reset respective WING/ENG Anti-ice circuit breaker after exiting icing conditions.
IF ICE ACCUMULATES ON THE FAILED SIDE WING LEADING EDGE
7. L and R WING/ENGINE Anti-ice Switches (both sides
) - ENGINE.
8. L/R WING/ENG Anti-ice Circuit Breaker (affected side) (LH panel) - RESET.
9. IGNITION Switch - ON.
10. Autopilot - OFF.
11. Leave icing environment as soon as possible.
WARNING
IF WING ANTI-ICE HAS FAILED ON ONE SIDE, BOTH SIDES MUST BE
SWITCHED TO ENGINE ANTI-ICE ONLY TO AVOID ASYMMETRIC WING ICE
ACCUMULATION AND TO RETAIN AIRPLANE CONTROL.
NOTE
f Minor airframe buffet may be present during operation with ice on both wing leading
edges.
f After an icing encounter with failed wing anti-ice, the crew should visually confirm
the presence of ice on the wing leading edges. If no ice is present on either wing,
the following BEFORE LANDING procedure is not applicable and normal landing
procedures should be used.
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I 56OMB-01 Configuration AA 5-17