R Mod : 4273
ATR 42 Model : 400/500
GENERAL
FIRE PROTECTION
P 5
NOV 99
090
1.08
.
10
CARGO COMPARTMENTS AND TOILET SMOKE DETECTION
AFT COMPT/LAV FANS Pb
Pb pressed in : One fan runs.
FAULT
: The fan is out of order
FAULT illuminates amber and CCAS is activated.
ALTN
: (Pb released) the alternate fan runs, ALTN light illuminates white.
SMK TEST Pb
Allows to test the FWD and AFT smoke detectors working.
CAB VENT AIRFLOW pb
Allows to inhibit cabin ventilation in case of smoke detection.
pb pressed in : Normal use. Both cabin ventilation isolating valves are opened.
OFF It is extinguished.
OFF
: (pb released) Both cabin ventilation isolating valves are closed.
OFF It illuminates white.
CONTAINER SMK ACTIVATION pb
ON
: (pb pressed in) in cargo configuration, allows to connect the
container smoke detectors. ON It illuminates white.
pb released
: in pax configuration, only FWD and AFT smoke detectors are used.
CONTAINER SMK Its
Are associated to the container smoke detectors (only when pb
4
is ON).
Illuminate red in conbination with FWD SMK or/and AFT SMK red It on CAP in case
of smoke detection. CCAS is then activated.
SMK TEST pb
Allows to test the 4 specific container smoke detectors working.
AA
1
2
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4
5
6
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01/07//2018 REV 1 These notes are not revised after issue For Training Purposes Only
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