Flight Instruments

Question 1

What happens if a PFD (Display 1 or 5) fails?

Answer 1

• The PFD information should automatically revert to respective side MFD (Display
  2 or 4)

Question 2

If a PFD has failed and occupies the MFD and subsequently the EICAS fails?

Answer 2

• EICAS on goes on opposite MFD

Question 3

What does FMA stand for?

Answer 3

• Flight Mode Annunciator

Question 4

When is Glideslope Inhibit automatically reset?

Answer 4

• Climbing above 2000

Question 5

What does EICAS Full do?

Answer 5

• Turns off de-clutter mode

Question 6

When does de-clutter of EICAS activate?

Answer 6

• 30 sec after Land gear retracted, flap slat retracted and all other parameters are
  normal.

Question 7

How are Root Cause Messages depicted on the EICAS?

Answer 7

• Chevron next to EICAS message

Question 8

How would you recognize an ADS failure?

Answer 8

• The affected PFD loses all Air Data Information
• A red cross is shown over the failed PFD
• An EICAS message is generated alerting the crew of the failure.

Question 9

When is the IESS powered?

Answer 9

• When BATT 1 is selected ON and

- When BATT 2 is selected to AUTO

Question 10

How long does it take for the IESS to align?

Answer 10

• Alignment takes about 90 seconds and can be identified by the “INIT 90 s” flag

Question 11

What does the IRS (Inertial Reference System) compute?

Answer 11

• Airplane position,
• Ground Speed,
• Heading and,
• Altitude

Question 12

How would you “correct” an IRS failure?

Answer 12

• In case of an individual IRS failure, the opposite IRS may be selected via the
  Reversionary Panel