Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
1. When would the When the ADIRU is ON with AC power removed
ADIRU ON BAT light
be illuminated?
2. If the ON BAT light Horn going ott in the nose wheel well
is on, what else is
an indication of the
ADIRU using the
battery?
3. When can the Only on the ground below 30 kts. Never in flight per system logic
ADIRU be turned
off?
4. Can you still nav- Yes, but only in HDG. No LNAV/VNAV, LOC/GS, FPV or envelope protections
igate without the
ADIRU?
5. How can you nav- Use HDG SEL after you update it
igate without the
ADIRU?
6. What bus powers Hot Battery Bus
the ADIRU?
7. If the ADIRU fails, Only data derived from the air data modules, no inertial navigation
what will the
SAARU provide?
8. What devices are Ring laser gyros, linear accelerometers and input processors
inside the ADIRU?
9.
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
What three compo- ADMs
nents make up the ADIRU
ADIRS? SAARU
10. What kind of infor- Primary flight data
mation is provided Air data
by the ADIRU? Inertial reference
11. How will you up- Enter the mag compass heading initially on the POS INIT page, with periodic
date the heading updates
information to the
SAARU?
12. With a SAARU-only Attitude reference will remain displayed on the PFDs. Can crosscheck the values
operation, where with the STBY flight instruments display
will attitude ref-
erence be found?
How do you know
that the SAARU is
healthy?
13. How will Since you have lost all navigational performance you must exit MNPS/OTS
SAARU-only opera- routing
tion affect Class II
Nav or over-water
operations?
14. If the ADIRU fails AFDS modes not available: LNAV/VNAV, TO/GA, LOC, GS, FPA, TRK/HDG SEL
with GPS opera- (HDG
tional, how do the available to regain AP after it is updated in FMC)
PFD, ND and AFDS PFD will be missing flap maneuvering speeds and HDG (regained once up-
look/display? What dated)
else do you loose? ND modes that normally display HDG up now function in TRK up.
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
Wind direction/speed and arrow
Autobrakes
FMC VNAV/PERF Prediction pages lost
15. If the ADIRU fails ND MAP modes
and GPS is not op- CDU Active Leg CRS/Dist
erational, what ad- CDU Direct to
ditional five items ALTN Page DIVERT NOW
are inoperative? Nav Radio Autotuning
16. How long does it 6-15 minutes depending on location and aircraft movement during alignment
take for the ADIRU
to align?
17. How do you align Turn it ott for 30 seconds then back on. Enter reference position in the FMC
the ADIRU?
18. How often should Once every 24 hours
the ADIRU be reset?
19. What happens if FMC MSG will be generated, must begin realignment process again
the aircraft is
moved during the
alignment process?
20. How long after an 3 minutes. Must updated periodically from then on
ADIRU failure will
you have to update
the HDG informa-
tion?
21. With any EICAS STATUS or SYS synoptic pages
message, how will
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
you find addition-
al information re-
garding the mal-
function?
22. On initial power up Align mode
what mode does
the ADIRU start up
in?
23. Is there an EICAS ADIRU ALIGN MODE and time to remain on ND
message for ADIRU
alignment?
24. How can you tell if ND has green GPS
the GPS is updating POS REF Page in FMC
the FMC?
25. How can you pow- You cant, no controls whatsoever
er-up the SAARU?
26. What is the ADIRU? Air Data Inertial Reference Unit
27. What is the SAARU? Secondary Attitude and Air Data Reference Unit
28. What are the Air Data Modules
ADMs?
29. For what engine Engine shutdown/flameout above 70 kts
malfunctions will Split thrust by 10%
the TAC work?
30. For what three en-
gine malfunctions
and Answers 2026 Guide
1. When would the When the ADIRU is ON with AC power removed
ADIRU ON BAT light
be illuminated?
2. If the ON BAT light Horn going ott in the nose wheel well
is on, what else is
an indication of the
ADIRU using the
battery?
3. When can the Only on the ground below 30 kts. Never in flight per system logic
ADIRU be turned
off?
4. Can you still nav- Yes, but only in HDG. No LNAV/VNAV, LOC/GS, FPV or envelope protections
igate without the
ADIRU?
5. How can you nav- Use HDG SEL after you update it
igate without the
ADIRU?
6. What bus powers Hot Battery Bus
the ADIRU?
7. If the ADIRU fails, Only data derived from the air data modules, no inertial navigation
what will the
SAARU provide?
8. What devices are Ring laser gyros, linear accelerometers and input processors
inside the ADIRU?
9.
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
What three compo- ADMs
nents make up the ADIRU
ADIRS? SAARU
10. What kind of infor- Primary flight data
mation is provided Air data
by the ADIRU? Inertial reference
11. How will you up- Enter the mag compass heading initially on the POS INIT page, with periodic
date the heading updates
information to the
SAARU?
12. With a SAARU-only Attitude reference will remain displayed on the PFDs. Can crosscheck the values
operation, where with the STBY flight instruments display
will attitude ref-
erence be found?
How do you know
that the SAARU is
healthy?
13. How will Since you have lost all navigational performance you must exit MNPS/OTS
SAARU-only opera- routing
tion affect Class II
Nav or over-water
operations?
14. If the ADIRU fails AFDS modes not available: LNAV/VNAV, TO/GA, LOC, GS, FPA, TRK/HDG SEL
with GPS opera- (HDG
tional, how do the available to regain AP after it is updated in FMC)
PFD, ND and AFDS PFD will be missing flap maneuvering speeds and HDG (regained once up-
look/display? What dated)
else do you loose? ND modes that normally display HDG up now function in TRK up.
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
Wind direction/speed and arrow
Autobrakes
FMC VNAV/PERF Prediction pages lost
15. If the ADIRU fails ND MAP modes
and GPS is not op- CDU Active Leg CRS/Dist
erational, what ad- CDU Direct to
ditional five items ALTN Page DIVERT NOW
are inoperative? Nav Radio Autotuning
16. How long does it 6-15 minutes depending on location and aircraft movement during alignment
take for the ADIRU
to align?
17. How do you align Turn it ott for 30 seconds then back on. Enter reference position in the FMC
the ADIRU?
18. How often should Once every 24 hours
the ADIRU be reset?
19. What happens if FMC MSG will be generated, must begin realignment process again
the aircraft is
moved during the
alignment process?
20. How long after an 3 minutes. Must updated periodically from then on
ADIRU failure will
you have to update
the HDG informa-
tion?
21. With any EICAS STATUS or SYS synoptic pages
message, how will
, Kalitta Air 777 - Gouge Questions
and Answers 2026 Guide
you find addition-
al information re-
garding the mal-
function?
22. On initial power up Align mode
what mode does
the ADIRU start up
in?
23. Is there an EICAS ADIRU ALIGN MODE and time to remain on ND
message for ADIRU
alignment?
24. How can you tell if ND has green GPS
the GPS is updating POS REF Page in FMC
the FMC?
25. How can you pow- You cant, no controls whatsoever
er-up the SAARU?
26. What is the ADIRU? Air Data Inertial Reference Unit
27. What is the SAARU? Secondary Attitude and Air Data Reference Unit
28. What are the Air Data Modules
ADMs?
29. For what engine Engine shutdown/flameout above 70 kts
malfunctions will Split thrust by 10%
the TAC work?
30. For what three en-
gine malfunctions
