ADIRS Panel - Rev 04 Flashcards
What does the ON BAT light indicate?
(FCOM-DSC-34-10-20)
It is illuminated amber if one or more IR(s) is supplied by the aircraft battery. Also illuminates briefly during the beginning of a full alignment.
How long will each ADIRU stay on battery power?
(FCOM-DSC-34-10-40)
ADIRS 2 and 3 will remain on battery power for 5 minutes to hold alignment until a generator can be restored. ADIRU 1 (ADIRU 3 if captain selected ATT HDG CAPT 3) will remain on battery power until generator power is restored or battery #2 fails.
What information is provided by the “IR” units?
(FCOM-DSC-34-10-10)
F - Flight path vector
A - Airplane position
T - Track
H - Heading
A - Attitude
A - Acceleration
G - Ground Speed
What information is provided by the “ADR” units ?
(FCOM-DSC-34-10-10)
B - Barometric altitude
O - Overspeed warnings
A - AOA
T - Temperatures
S - Speed/Mach
What does a steady white ALIGN light indicate (older panel with keypad)?
(FCOM-DSC-34-10-20)
The respective IR is in the Align mode
How does the ADIRS panel indicate that an IR is in ALIGN mode?
(FCOM-DSC-34-10-30)
Before any engine is started (displayed on E/WD):
a. IR IN ALIGN X MN memo appears in green when at least one active IRS is being aligned
When one engine is started (displayed on E/WD):
a. IR IN ALIGN X MN memo appears in amber during IRS alignment
b. IR NOT ALIGNED is displayed as an ECAM Caution Message if the alignment of one IRS is faulty
c. IR IN ATT ALIGN appears in green during the IR alignment in Attitude Mode
What does a flashing white align light mean (older panel with keypad)?
(FCOM-DSC-34-10-20)
There are three reasons that the white align lights will flash:
There is no current position,
The position is incorrect
The aircraft moved during alignment.
How is the crew alerted to the FMGS having no current position, an incorrect position or if the aircraft has moved during the alignment?
(FCOM-DSC-34-10-20)
IR IN ALIGN X MN memo pulses in green on the E/WD
How do you fast align an IR?
(FCOM-PRO-SUP-34, FCOM-NOR-SOP-06)
Select each ADIRS selector OFF and then back to NAV (one at a time) within 5 sec
What does the IR pushbutton do on the newer ADIRS panel?
(FCOM-DSC-34-10-20)
Inertial data output of the respective IR is disconnected
What does steady illumination of the amber IR FAULT light indicate?
(FCOM-DSC-34-10-20)
A fault affects the respective IR.
What does flashing illumination of the amber IR FAULT light indicate?
(FCOM-DSC-34-10-20)
Attitude and Heading may be recovered in ATT mode
(you have lost the navigation portion).
What does the amber ADR FAULT light indicate?
(FCOM-DSC-34-10-20)
A fault is detected in the Air Data Reference portion
Does turning the IR Mode Rotary Switch to OFF also turn off the ADR?
(FCOM-DSC-34-10-20)
Yes
Can you turn the ADR OFF and still have the IR?
(FCOM-DSC-34-10-20)
Yes