Systems ICE & RAIN PROTECTION Flashcards
Which leading edge slats have bleed air protection
Slats 2,3 & 4
FCOM 1 13-01-1 13-03-1
What happens when the L/R COWL rotary switch on the Anti Ice panel is set to AUTO
EEC controls CAIV based on signals from Ice Detectors
FCOM 1 13-04-1
What happens when the PROBE HEAT switch is AUTO (dark)
Air Data Smart Probe ADSP and Total Air Temperature TAT probes are controlled automatically
-Modulate on the ground (depending on probe temp) with at least one engine running and speed < 55 kts 2 minute timer
- ON full heat speed > 55kts or WoW
FCOM 1 13-08-3
What is the heat source for Cowl Anti Icing
6th stage Engine Bleed
FCOM 1 13-04-1
List temperature range limitations for CAI and WAI use on the ground
CAI must be ON if temp 10 deg or below, visible moisture, visibility 1500m or less
WAI must be ON if temp 5 deg (10 deg airborne) or less, visible moisture, visibility 1500m or less
AFM limitations 02-04-4/5
When ice is detected the sensing element heats up momentarily to de-ice and will continue to indicate icing conditions for ___ min. The Anti Ice system will then remain on for an additional ___ min
Continue to indicate for 1 minute
and remain on for an additional 2 minutes
FCOM 1 13-02-2
The P2T2 probes in the engine cowl are electrically heated when the engine is
Operating
FCOM 1 13-05-2
Can TAT probes be used as an indication of ambient temperature after landing
No
They are not ventilated and so residual heat may increase indication
FCOM 1 13-05-2
The windshield and side window anti ice system is turned on automatically when
AC power is available
115 VAC AC BUS 1 & 2 AC ESS
FCOM 1 13-06-1
The Cowl Anti-Ice System components are
4 pressure regulated valves Cowl Anti-Ice Valves
2 in series in each engine cowl
Electrically controlled by EEC, pneumatically operated and fail safe OPEN
2 Cowl Anti-Ice Temperature Sensors CAITS
1 in each Cowl area
FCOM 1 13-04-3
CAIS is inhibited until ___ ft or __ mins after T/O, whichever occurs first
1500 ft or 2 mins
FCOM 1 13-04-5
CAIS is inhibited on the ground if
Engine not running or outside temp is >15 deg
FCOM 1 13-04-5
The Wing Anti-Ice System WAIS distributes engine bleed air that comes from the
The Pressure Regulating Shut Off Valve PRSOV
FCOM 1 13-03-1
In AUTO the WAIS activates in icing conditions ___ ft or ___ mins afterT/O
1500 ft or 2 mins
FCOM 1 13-03-7
When WAIS is set to ON if icing conditions are anticipated the WAIS is inhibited on the ground before a speed of
60 kts
FCOM 1 13-03-7
To avoid engine damage, before the WAIS test is started on the ground the engine N1 must be increased to
30% with dual engine bleed
50% with single source bleed
FCOM 1 13-03-8
It is recommended to do the WAI test before flex temp entry because
Wing anti-ice test can lead to rejection of assumed temperature entry
FCOM 2 06-12-01-5
