Flight Instruments Flashcards
1
Q
What happens if a PFD (Display 1 or 5) fails?
A
- The PFD information should automatically revert to respective side MFD (Display
2 or 4)
2
Q
If a PFD has failed and occupies the MFD and subsequently the EICAS fails?
A
- EICAS on goes on opposite MFD
3
Q
What does FMA stand for?
A
- Flight Mode Annunciator
4
Q
When is Glideslope Inhibit automatically reset?
A
- Climbing above 2000
5
Q
What does EICAS Full do?
A
- Turns off de-clutter mode
6
Q
When does de-clutter of EICAS activate?
A
- 30 sec after Land gear retracted, flap slat retracted and all other parameters are
normal.
7
Q
How are Root Cause Messages depicted on the EICAS?
A
- Chevron next to EICAS message
8
Q
How would you recognize an ADS failure?
A
- 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.
9
Q
When is the IESS powered?
A
- When BATT 1 is selected ON and
- When BATT 2 is selected to AUTO
10
Q
How long does it take for the IESS to align?
A
- Alignment takes about 90 seconds and can be identified by the “INIT 90 s” flag
11
Q
What does the IRS (Inertial Reference System) compute?
A
- Airplane position,
- Ground Speed,
- Heading and,
- Altitude
12
Q
How would you “correct” an IRS failure?
A
- In case of an individual IRS failure, the opposite IRS may be selected via the
Reversionary Panel
