Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-107
26-Jul-2017
AURAL WARNING
The TCAS system provides the following aural warnings
• Traffic advisories (TA)
• TRAFFIC - TRAFFIC
• Resolution Advisories (RA)
o CLIMB, CLIMB, CLIMB
o DESCEND, DESCEND
o MONITOR VERTICAL SPEED
o CLIMB – CROSSING CLIMB, CLIMB – CROSSING CLIMB
o DESCENT – CROSSING DESCENT, DESCENT – CROSSING DESCENT
o INCREASE CLIMB, INCREASE CLIMB
o INCREASE DESCENT, INCREASE DESCENT
o CLIMB – CLIMB, NOW, CLIMB – CLIMB, NOW
o DESCENT – DESCENT, NOW, DESCENT – DESCENT, NOW
o MAINTAIN VERTICAL SPEED, MAINTAIN
o MAINTAIN VERTICAL SPEED, CROSSING MAINTAIN
o ADJUST VERTICAL SPEED, ADJUST
• When clear of conflict
o CLEAR OF CONFLICT
• TCAS self-system test performed without any faults
o TCAS SYSTEM TEST OK
• TCAS self system test performed with a fault
o TCAS SYSTEM TEST FAILED
GROUND PROXIMITY WARNING SYSTEM (GPWS)
The ground proximity warning system, GPWS, helps the flight crew to prevent unsafe flight manoeuvers in
terrain proximity or when detecting wind shears.
The current flight path and aircrafts configuration is compared to a terrain database and different aural and
visual warnings are triggered when possible collisions or unsafe flight manoeuvers are detected.
The GPWS features the following modes / warnings:
• Mode 1 – Excessive descent rate
• Mode 2 – excessive terrain closure rate
• Mode 3 – Altitude loss after take-off
• Mode 4 – Unsafe terrain clearance
• Mode 5 – Below glideslope alert
• Mode 6 – callouts (descent below minimum, altitude callouts and bank angle alert)
• Mode 7 –windshear detection and alerting
• Terrain clearance floor and terrain / obstacle awareness alerting and display