Flight Management

Question 1

What does ON BAT light illuminated next the the ADIRU switch

Answer 1

The ADIRU is selected ON and the ground power or primary power has subsequently failed. ADIRU on Hot Battery Bus

Question 2

What does the Air Data Inertial Reference System calculate

x5 answers

Answer 2

1. Altitude
2. Airspeed
3. Attitude
4. Heading
5. Position

Question 3

What can cause an ADIRU to not align

Answer 3

1. NO position entered
2. BAD position entered
3. POSITION of aircraft moved

Question 4

How many times will the ADIRU accept BAD position before reinitiating an alignment

Answer 4

Two

Question 5

How often is recommended for ADIRU realignment

Answer 5

24 hours

Question 6

What is lost when ADIRS fails and operations on SAARU

Answer 6

1. Position
2. Automatic HDG update (Must be manually inputed using compass)

Question 7

Are standby instruments Altitude, Heading and Airspeed independent of ADIRU and SAARU calculations

Answer 7

Yes

Question 8

How many DME systems

Answer 8

Two

Question 9

How many ILS receivers

Answer 9

Three

Question 10

How many VOR receivers

Answer 10

Two

Question 11

Conditions for ILS auto tuning

Answer 11

1. ILS approach has been selected to the active route
2. Airplane within 50nm TopD, 150nm landing threshold or the FMC is in descent mode

Question 12

How long is ILS auto tuning inhibited after takeoff

Answer 12

10 minutes to prevent clutter

Question 13

ILS approach tuning inhibit when

Answer 13

1. A/P engaged and either GS or LOC captured
2. FD engaged and either GS or LOC captured and <500RA
3. On ground LOC active HDG within 45deg groundspeed >40kts (Autoland tracking)

Question 14

ILS approach inhibit disabled when

Answer 14

1. Either TO/GA switch pushed
2. A/P disengaged and both FD switched to OFF
3. MCP APP mode deselected above 1500RA

Question 15

What is automatic realignment of the ADIRU

Answer 15

If the airplane is stationary for a period of time the ADIRU resets velocity and acceleration errors to zero

Question 16

How long for an ADIRU to align

Answer 16

6 - 15 minutes pending distance from equator (closer is faster)
Average 10 minutes

Question 17

Required Navigation Performance vs Actual Navigation Performance

Answer 17

RNP - The navigation performance for the defined airspace operating required within the tolerance 95% of the time.
ANP - The current navigation performance of the airplane calculated to be within 95% of the time.

Question 18

When is FMC in “on approach mode”

x4 answers

Answer 18

1. the descent phase and flaps out of up
2. Sequenced the first waypoint of active approach
3. direct to or intercept course to active waypoint and the distance to go less than 12nm
4. The MaP is active and less than 25nm to go

FOM2 11.31.32

Question 19

When is FMC out of “on approach mode

x3 answers

Answer 19

1. TO/GA selected
2. The airplane lands
3. A/C flies beyond the last waypoint of the approach.

FOM2 11.31.32

Question 20

Maximum thrust (N1%) reduction for assumed temperature derated take off (D-TO)

Answer 20

25% or CLB thrust