Flight Instruments

Question 1

Mach number begins to appear at

Answer 1

.40 and above

Question 2

Trend vector represents ____ seconds

Answer 2

10

Question 3

What’s an Air Data Module? (ADM)

Answer 3

The air data modules convert pneumatic pressure to electrical signals and send these data to the ADIRUs. Each pitot air data module is connected to its on–side pitot probe; there is no cross connection. 6 ADMs, one for each of the main static and pitot ports. FCOM pg. 753 for more.

Question 4

How many pitot and static ports for STBY instrument?

Answer 4

1, 2.

Question 5

What color is the localizer pointer (diamond) on the ND

Answer 5

Pointer is only on EFIS. It’s magenta unless excessively deviated and AP engaged below 1000ft, when it turns amber.

Question 6

CDS MAINT?

Answer 6

A dispatch-able fault has occurred with DEU, and it happens between engine starts on ground only.

Question 7

CDS FAULT?

Answer 7

(amber) – A non-dispatchable CDS fault has occurred. Displayed on the ground only, prior to start of the second engine.

Question 8

DSPLY SOURCE (amber)

Answer 8

A DEU has failed. • If a DEU fails above FL220 –
the autopilot and flight directors are not affected
• If a DEU fails during climb or descent below FL220 with the failed side autopilot engaged –
the flight director pitch command bar is removed from both pilots’ displays,
the flight director pitch command bar reappears at ALT ACQ, the autopilot engages in CWS P; LVL CHG, VNAV, and V/S are not available with the failed side autopilot.
• If a DEU fails during level flight below FL220 with the failed side
autopilot engaged –
• climb or descent to a new altitude is only possible in CWS P
• If a DEU fails in the approach mode above 400 feet with both flight directors on –
the flight director pitch and roll command bars are removed from the display on the failed side
• If a DEU fails prior to engaging the second autopilot for a dual autopilot approach –
engagement of the second autopilot is inhibited.