Warning Systems Flashcards
How can a Mach/Airspeed warning be cancelled?
Can be cancelled by reducing speed
When are Predicative Windshear warnings available on takeoff?
12-Secs after Weather Radar begins scanning for windshear and below 1200ft
Warnings and Cautions (i.e ‘Monitor Radar Display’)
What conditions cause a PSEU caption to illuminate in-flight on the overhead panel?
It’s inhibited from thrust lever advance until 30secs and landing
If the flaps are greater than 25 how can the landing gear warning horn be cancelled if the gear is not down?
It cannot be cancelled
What are the parameters that cause altitude alerting & when is it inhibited?
Altitude alerting operates when approaching or departing from MCP altitude more than 300ft and is inhibited with flaps at 25 degrees or greater or G/S capture.
Warnings will also stop at 900ft deviation
How can a configuration warning be cancelled?
The warning can only be cancelled by correcting the configuration error
GPWS colour coding for warning
500’ below < = Green
500’ below - 2000’ above = Amber
2000’ above + = Red
When are Predicative Windshear warnings available on approach?
Below 2300ft RA WX radar starts sweeps for windshear, alerts from 1200ft RA with cautions inhibited below 400ft.
Below 50ft on approach all inhibited.
TCAS when would a TA appear?
Approx 40s away
TCAS - When would an RA start?
Approx 25s away
TCAS - When are increase descent RAs inhibited
Below 1500ft RA
TCAS - When are descent RAs inhibited?
Below 1100ft
TCAS - When in TA/RA mode would you only get TAs?
Below 1000ft RA
TCAS - When are voice alerts inhibited?
Below 500ft
