ATA 30 - Ice And Rain Protection Flashcards
When to use engine anti ice ?
OAT (ground) or TAT (inflight) =< 10°C + visible moisture/contaminated surfaces
except during climb or cruise if SAT =< -40°C ( not descent)
If engine anti ice is ON, continuous ignition is automatically ON. True or False ?
True ( only on some MSN )
How is engine anti iced ?
Air from HP compressor into leading edge of the nacelle
What is the position of engine anti ice valve when in emergency electrical configuration ?
OPEN
Which slats are anti iced ?
Slats 5, 4, 3
___ ___ ___ ___ ___|
5 4 3 2 1
When wing anti ice is used ?
Ice on ice indicator or/and on wipers
Can wing anti ice be used on ground ?
No. If you put it ON —> 30s self test only
Position of the wing anti ice valve if emergency electrical configuration ?
CLOSED if on BAT only.
If EMER GEN running —> available !
Position of the wing anti ice valve in case of leak detected ?
CLOSED
How many Window Heat Computer ?
2 WHC, 1 each side
When windows/windscreen is heated ?
AUTO: inflight or on ground 1 engine running
ON: …
Windows: 1 level of heat
Windscreen: Low on ground, High in flight
How many Probe Heat Computer ?
3 PHC (1CdB, 1 Sby, 1FO)
When probes are heated ?
AUTO: inflight or on ground 1 engine running
ON: …
AoA & SAT: 1 level
Pitot: Low on ground, high inflight
TAT: inflight only
On ground, when is the rain repellent system inhibited?
Both engine off
The ENGINE ANTI-ICE VALVE closes in case of low AIR PRESSURE. True or False ?
True. E.g. in case of engine shutdown.
In case of window heat computer failure, the other computer can replace the failed one ?
No. One computer per side
What is the consequence on N1 idle and max limit of the ENG or WING A/I ?
N1 idle is increased and max limit is decreased
Can you land with WINGS A/I ON ?
No except if severe icing conditions (cf SOP when extending flaps Full)
After how many seconds ECAM msg ICE NOT DETECTED is displayed ?
190s
Which probe between AoA, TAT, SAT and pitot is not heated on ground ?
TAT
What are the impact on climb gradient in case of an open WING A/I valve ? (MEL)
5000kg in case of «hot T°» (ISA+5)
ENG A/I may be operative even if ENG BLEED off. True or False ?
True (cf Bleed system diagram)
