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Aug 06/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 131
ALL
ICE INDICATOR ILLUMINATION SYSTEM PRESENTATION
GENERAL
A visual ice indicator is fitted in the central
retainer of the windshield. It can be illuminated to
appreciate the icing conditions at night or in
darkness.
ICE INDICATOR
The illuminated ice indicator consists of a titanium
part with openings, a transparent cover and a Light
Emitting Diode.
IDENTIFICATION
FIN: 16DD
CONTROL
The indicator illumination LED is supplied with 28VDC
and controlled by the ICE IND & STBY COMPASS switch.
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EFFECTIVITY 30-81-00 Page 2
Aug 06/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 132
ALL
ICE INDICATOR ILLUMINATION SYSTEM PRESENTATION
TMUIC6001-P01 LEVEL 3
EFFECTIVITY 30-81-00 Page 3
Aug 06/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 133
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TMUIC6001 LEVEL 3
EFFECTIVITY 30-81-00 Page 4
Aug 06/99
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 134
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30 - ICE AND RAIN PROTECTION
30-81-00 DUAL ADVISORY ICE DETECTION
SYSTEM PRESENTATION
CONTENTS:
Function
Detection
Messages
Monitoring
Self Examination
TMUIC3001 LEVEL 1
EFFECTIVITY 30-81-00 Page 1
Jun 30/94
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 135
ALL
DUAL ADVISORY ICE DETECTION SYSTEM PRESENTATION
FUNCTION
The purpose of the dual advisory ice detection system
is to provide :
- better detection of icing conditions,
- fuel saving by cutting off the hot air bleed
for the anti-ice systems when the latter are
no longer necessary.
The dual advisory ice detection system is made of two
ice detectors installed on the aircraft skin and
directly connected to the Flight Warning Computer (FWC)
to send warning messages to the crew on the Engine and
Warning Display.
DETECTION
Two levels of detection are provided :
- "ICE DETECTED" corresponding to an elementary
detection,
- "SEVERE ICE DETECTED" corresponding to 7
successive elementary detections.
The ice detection system is operating at electrical
power up and sends warning messages in flight, above
1500 feet and when TAT is below 8°C, even with one ice
detector faulty.
MESSAGES
The ice detectors generate three different discrete
signals :
- "ICE DETECTED" signal when engine air intake
anti-ice is necessary,
- "SEVERE ICE DETECTED" signal when wing anti-ice
is necessary,
- FAULT signal when the two ice detectors are
faulty.
MONITORING
Each ice detector is provided with a BITE function for
continuous monitoring.
The FAULT signals are also sent to the System Data
Acquisition Concentrator (SDAC) and to the Centralized
Fault Display Interface Unit (CFDIU).
TMUIC3001-T01 LEVEL 1
EFFECTIVITY 30-81-00 Page 2
Jun 30/94
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 136
ALL
TMUIC3001-P01 LEVEL 1
DUAL ADVISORY ICE DETECTION SYSTEM PRESENTATION
EFFECTIVITY 30-81-00 Page 3
Jun 30/94
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 137
ALL
SELF EXAMINATION
How many levels of ice detection are provided ?
A - Two.
B - Three.
C - Seven.
When is the ice detection system inhibited ?
A - At last engine shut down.
B - At electrical power off.
C - On ground, below 1500 feet or TAT < 8°C.
TMUIC3001 LEVEL 1
EFFECTIVITY 30-81-00 Page 4
Jun 30/94
_A319/A320/A321 TECHNICAL TRAINING MANUAL
MECHANICS / ELECTRICS & AVIONICS COURSE 30 ICE & RAIN PROTECTION
UF94200
EFFECTIVITY Page 138
ALL
30 - ICE AND RAIN PROTECTION
30-81-00 DUAL ADVISORY ICE DETECTION
SYSTEM WARNINGS
CONTENTS:
Ice Detected
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