Warning Systems

Question 1

What is Displayed on the Primary EICAS Display?

Answer 1

• EICAS Message Field (Warning, Caution, & Advisory).
• Engine Secondary Data Cue
• Primary Engine Indications (N1 and EGT)

Question 2

What is on the Secondary EICAS Display?

Answer 2

• N2
• FF
• Oil Press.
• Oil Temp.
• Oil Qty.
• ViB

Question 3

What makes up the warning system?

Answer 3

• EICAS
• GPWS
• TCAS

Question 4

What is inhibited during TO?

Answer 4

• The Master Warning Lights and Fire Bell are inhibited from rotation (nose gear extension) until 400’ RA or 20 seconds.
• Still get Fire Light and EICAS Message.
• After Rotation, TO Configuration warnings are inhibited.
• The Master Caution and aural indications are inhibited after 80 KIAS until 400’ or 20 Seconds after rotation, or in the event of a RTO, 75 KIAS.
• Datalink Lost EICAS message (from Thrust Set)
• Windshear Sys EICAS message (from Thrust Set until …)

Question 5

What is inhibited during Landing?

Answer 5

• EICAS Comm alerts (SELCAL, ACARS, PRINTER)
• The Cabin Alert CHIME
• Inhibit starts descending below 800’ AGL and terminates at less than 75 KIAS or 900’ AGL on a GA.

Question 6

What is Message Inhibit?

Answer 6

• When Fuel Control Switch in Cutoff, L ENG SHUTDOWN replaces individual messages.
• ## When you have multiple failures in one system, it will consolidate EICAS Messages.

Question 7

Describe the Alert Message Inhibits.

Answer 7

• Some alert messages will inhibit others that are lower priority or connected.
• Certain alert messages are time delayed, to avoid excessive EICAS messages due to changing conditions / in transit erroneous indications.
• Altitude alerting is inhibited in flight, with the landing gear down and locked.

Question 8

What will trigger a TO CONFIG Warning?

Answer 8

• Armed when on the ground and thrust is in the takeoff range on either engine.
• Consists of Master Warning, CONFIG warning light, aural warning siren, and associated EICAS message.
• FLAPS
• Parking Break
• Spoilers
• Stabilizer

Question 9

What will trigger a LNDG CONFIG Warning?

Answer 9

• In flight, LG NOT down and locked, AND
• flaps are at 25 or 30, or
• any thrust lever is at IDLE below 800’ RA
• Master Warning light and Aural Warning
• CONFIG Warning Light.
• Cannot be deactivated by pressing Master Warning Light

Question 10

Can you cancel an airspeed warning?

Answer 10

YES! by pressing master warning