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Ice and Rain Protection
Includes these subsystems:
- engine anti-ice system (bleed air)
- wing anti-ice system (bleed air)
- ADSP heating system (electric)
- windshield heating system (electric)
- windshield wipers (electric)
- water and waste ice protection system (electric)
- ice detection system (electric)
The wing and engine anti-ice systems remain active for 5 minutes after they have been automatically activated and icing conditions no longer exist.
Water and waste
The forward and rear drain masts are heated to prevent ice formation during draining, and the water fill nipple is heated to prevent ice formation during filling.
Door sills
The door sills are also automatically heated to prevent snow accumulation at the doors. They operate with WOW, the doors open, and OAT <4.4°C. The power source is 115VAC, single-phase. A failure generates a message on the CMC.