Flight Management

Question 1

757/767: The FAULT light is illuminated on the IRS mode selector panel for the center IRU. This indicates

Answer 1

A system fault affecting the center IRS ATT and nav modes has been detected

Question 2

757/763 the FMC light illuminates when

Answer 2

There is a fmc alerting message

Question 3

753/764: Which IRU(s) remain powered during standby power operations?

Answer 3

All three IRUs remain powered

Question 4

757/767: One of the IRS mode selector is positioned to ATT. This mode provides:

Answer 4

Only attitude and heading information

Question 5

757/767; When first turned on, the IRU must go through a full alignment. Alignment requires about ____ while the system determines level attitude and true heading.

Answer 5

10 minutes

Question 6

757/767: The ALIGN light is flashing on the IRS mode selector panel for the left IRU. This indicates

Answer 6

Alignment cannot be completed due to significant difference between previous and entered positions, an unreasonable present position entry, no present position entry

Question 7

757/767: The DC FAIL light is illuminated on the IRS mode selector panel for the left IRU. This indicates that:

Answer 7

DC backup power for the related IRU has failed

Question 8

767/767 IF the IRS reverts to DC power on the ground, ____
to alert personnel of the high batter drain

Answer 8

Ground crew call horn in the nose wheel well sounds

Question 9

757/763: Three ILS receivers, tuned from a single control panel, are installed. The panel tunes all three ILS receivers simultaneously. The center ILS receiver provides input to:

Answer 9

The standby attitude indicator (SAI)

Question 10

757/767: The ON DC light is illuminated on the IRS mode selector panel for the right IRU. This indicates that:

Answer 10

Normal AC power for the right IRS has failed and the IRS is operating on DC backup power from the hot battery bus