Icing Flashcards
1
Q
What ice protection equipment is fitted to the aircraft?
A
only the pitot heat
2
Q
Icing Encounter during Flight Procedure (12 steps)
A
- PITOT HEAT Switch -ON
- Turn back or change altitude to obtain an outside air temperature that is less conducive to icing.
- Pull cabin heat control full out and open defroster outlets to obtain maximum windshield defroster airflow. Adjust cabin air control to get maximum defroster heat and airflow.
- Watch for signs of induction air filter icing. A loss of engine RPM could be caused by ice blocking the air intake filter. Adjust the throttle as necessary to hold engine RPM. Adjust mixture, as necessary, for any change in power settings.
- Plan a landing at the nearest airport. With an extremely rapid ice build-up, select a suitable “off airport” landing site.
- With an ice accumulation of 0.25 inch or more on the wing leading edges, be prepared for significantly higher power requirements, higher approach and stall speeds, and a longer landing roll.
- Leave wing flaps retracted. With a severe ice build-up on the horizontal tail, the change in wing wake airflow direction caused by wing flap extension could result in a loss of elevator effectiveness.
- Open left window and, if practical, scrape ice from a portion of the windshield for visibility in the landing approach.
- Perform a landing approach using a forward slip, if necessary, for improved visibility.
- Approach at 65 to 75 KIAS depending upon the amount of the ice accumulation.
- Perform a landing in level attitude.
- Missed approaches should be avoided whenever possible because of severely reduced climb capability.
