Ice and Rain Protection

Question 1

Q1: How many Ice detectors are there?

Answer 1

A:2

Question 2

Q2: How do you test the Ice detection system?

Answer 2

A: By using the ICE DETECT soft key on the AVIO tab on the AVIONIC synoptic page

Question 3

Q3: What is the indication for a successful ice detection system test?

Answer 3

A: A green PASS message displayed beside the ICE DETECT soft key

Question 4

Q4: What is the indication of an unsuccessful ice detection system test?

Answer 4

A: An amber FAIL message displayed beside the ICE DETECT soft key

Question 5

Q5: Are all leading-edge slats anti-iced?

Answer 5

A: No (inboard of the engine nacelles are not)

Question 6

Q6: With the WING anti-ice rotary selector in AUTO, when In icing conditions, the Wing Anti-Ice system activates when?

Answer 6

A: When the aircraft altitude reaches 1500 ft AGL or 2 minutes after takeoff, whichever occurs first

Question 7

Q7: What happens if the APU is the source of bleed air when WAI protection is required?

Answer 7

A: The IASC changes the bleed air source to the engines when turning the WAI ON

Question 8

Q8: How do you conduct a WING A/ICE test?

Answer 8

A:
1. Advance thrust levers to 30% N1 or 50% N1 (single engine)
2. Anti-Ice Wing – ON
3. AVIONIC SYN Page – Select
4. AVIO, TEST – WING A/ICE – Select
5. Confirm “PASS” is shown
6. Thrust Levers – As Required
7. Anti-Ice Wing – AUTO or ON
. Also acceptable inflight (WAI ON limitation <19,000 ft and <15c TAT)

Question 9

Q9: The cowl anti-ice system uses what stage bleed air?

Answer 9

A: 6th stage

Question 10

Q10: The TAT, AOA sensors, and ADSPs are automatically heated, when?

Answer 10

A: If any engine is running or W OFF W

Question 11

Q11: When are the windshield wipers synchronized?

Answer 11

A: When the rotary switch position is the same on both sides