AUTOFLIGHT

Question 1

When does the AP control the rudder?

Answer 1

when LAND3 or LAND2 annonciated AP control of the rudder is active
all requirements have been fullfilled below 1500ft

Question 2

When is the RWY alignment actuated? (4)

Answer 2

actuated at 500ft RA with LAND2 or LAND3
activation is not displayed
AP initiate a slip with max baank angle 2° when the crab angle exceeds 5°
wings level from a slip is initiated when ROLLOUT engaged

Question 3

What does ASA means?

Answer 3

Autoland Status Annunciators

Question 4

What does ASA monitors?

Answer 4

ASA monitors 3 channels
each channels consist of FRII
FCC
RA
ILS
IRS

Question 5

What happen if ASA fails in flight? FO? CA

Answer 5

CA ASA: CATIIIA OK

FO ASA: CATII only

Question 6

what is alert height?

Answer 6

200ft RA

Question 7

lost of a gen from 1500ft to 200ft RA?

Answer 7

reverts to normal, Center bus switch back to L main AC/DC

NO LAND 3 appears

Question 8

lost of a gen from 200ft RA to GND?

Answer 8

no transition to normal
bus tie breaker prevents remaining gen from powering both main AC
remaining gen powers 1 main AC bus and AP

Question 9

AUTOLAND profile, below 1500ft RA? (4)

Answer 9

LAND 3 or LAND 2 on ASA
3 AP engages (3 separate source)
Rudder control operation
FLARE+ROLLOUT modes armed

Question 10

AUTOLAND profile, 500ft RA?

Answer 10

Runway align submode engages (max 2° bank for 5° crab

if wing Anti ice: turn it OFF

Question 11

AUTOLAND profile, ±330ft RA

Answer 11

Nose UP trim for the flare

Question 12

AUTOLAND profile, 200ft RA?

Answer 12

Electrical system auto power transfer inhibited below 200ft RA
ASA does NOT changes

Question 13

AUTOLAND profile, 45ft, 25ft, 5ft RA?

Answer 13

remember accurate name the FIR

45ft: FLARE
25ft: IDLE
5ft: ROLLOUT

Question 14

CATIIIA approach, APU inop, L engine fail at 100ft RA, what would be the indication of ASA?

Answer 14

no change of ASA and autoland would continue normally

Question 15

autoland above 200ft RA, explain?

Answer 15

L and C AP normally powered by L AC
R AP by R AC
below 1500ft: C AP transfer to BAT/Standby
3 separate source

Question 16

Why do we start the APU for an autoland?

Answer 16

to keep an extra gen in case of failure between 1500ft and 200ft RA

Question 17

until 200ft RA, if single source? (no APU case)

Answer 17

C AP reverts to L AC
both BTB close to keep both AC bus powered
all 3 AP are powered from a single source
NO LAND 3 on ASA

Question 18

below 200ft RA?

Answer 18

NO reversion
BtB prevents it
AP associated with fail gen is lost
autoland continue on 2 remaining AP
no change to ASA

Question 19

When does the GO AROUND mode arms?

Answer 19

GA arms and the thrust refrence imit when either:
Flaps are NOT UP
GS is captured
GA remains armed until 2s after 5ft RA

Question 20

Alternate navigation, when? which aircraft? 2 pages name? components?

Answer 20

lost of 2 FMC: go to CDU
VN and EK only
IRS legs and IRS progress
active leg Mag, others in True
waypoints in lat/long format
NO holding performance
time to go to next point