Flight Instruments / NAV / AFDS / Warning Systems

Question 1

What things happen at 80 knots on takeoff roll?

Answer 1

1) Master CAUTION light is inhibited until 400 feet AGL or 20 seconds after nose gear strut extension
2) Auto Throttle mode changes to THR HOLD

Question 2

What flight instruments are lost with a Left IRU?

Answer 2

Captain’s ADI and HSI

F/O’s RDMI

Question 3

When do multiple autopilots engage?

Answer 3

Below 1500 feet in APP mode

Question 4

What are the 3 ways to disconnect the auto throttles?

Answer 4

1) Disconnect switch on the throttle
2) A/T ARM switch - OFF
3) Activate thrust reversers

Question 5

When does the standby engine indicator activate?

Answer 5

1) Failure of both EICAS CRTs (screens)
2) Failure of EICAS system (2 computers)
3) AC power loss
4) Failure of either EICAS CRT with STATUS selected

Question 6

When will a CONFIG warning activate for takeoff?

Answer 6

Aircraft on the ground and thrust levers advanced for takeoff and:

• Parking brake valve closed
• Spoiler handle not in the DOWN detent
• Stab trim outside the green band
• Flaps or Slats not in takeoff position

Question 7

When will a CONFIG warning activate in flight?

Answer 7

Any landing gear not down and locked and:

• Aircraft below 800 feet RA and either thrust lever at idle
• Landing flaps selected

Question 8

Below what altitude is the NO LAND 3 annunciation inhibited?

Answer 8

200 feet RA

Question 9

When will the IRS ALIGN light flash?

Answer 9

During alignment if:

• the aircraft is moved
• a bad position is entered (1 degree/60 NM)
• no position entered into the FMC after 10 min

Question 10

What is the normal IRS alignment time?
High latitude alignment time?
Quick alignment time?

Answer 10

10 min - normal
17 min - high latitude
30 sec - quick align

Question 11

What are the flight instrument indications of a successful IRU alignment?

Answer 11

ADI and headings appear on EFIS/FPDS

Question 12

What happens with loss of AC power to IRS - ETOPS and non-ETOPS?

Answer 12

ETOPS: left IRU powered by HMG, center and right will have ON DC light illuminated (powered by hot battery bus), after 5 min right IRU will shed

Non-ETOPS: ON DC light across all 3 IRUs (powered by hot battery bus), after 5 min left and center will shed, right will stay on for captain’s RDMI

Question 13

G/A Mode pitches for what speed?

What thrust does G/A Mode command?

Answer 13

G/A mode pitches for MCP speed or speed at time G/A trigger was pressed (whichever is higher). If airspeed increases above this speed for 5 seconds, G/A pitch will change to the new speed (up to Vref + 25 knots).

G/A mode commands thrust for a 2000 FPM climb rate, if a higher climb rate is desired, push up the throttles to command

Question 14

G/A Mode pitches for what speed?

What thrust does G/A Mode command?

Answer 14

G/A mode pitches for MCP speed or speed at time G/A trigger was pressed (whichever is higher). If airspeed increases above this speed for 5 seconds, G/A pitch will change to the new speed (up to Vref + 25 knots).

G/A mode commands thrust for a 2000 FPM climb rate, if a higher climb rate is desired, push up the throttles to command max thrust.