W DOC AIRBUS | MMEL OPS PROC

Landing Gear Control and Interface Unit (LGCIU)

32-31-01ALanding Gear Control and Interface Unit (LGCIU)
Applicable to: -
- During Cockpit Preparation
  • HYDRAULIC/LGCIU/SYS2 (121VU Q35) C/BPULL
The following table gives the consequences on the systems affected when the LGCIU 2 is inoperative and above mentioned C/B is pulled.
SYSTEMS
CONSEQUENCES
PROCEDURE
AVNCS VENT(on ground)
  • The system remains in closed circuit configuration.
  • (If Installed) The ground cooling system is inoperative.
  • Time limitations on ground for ELEC PWR supply:
    • OAT ≤ 43 °C: No Limitation
    • 44 °C ≤ OAT ≤ 52 °C: 3 h
    • OAT ≥ 53 °C: 30 min
  • Check that the air conditioning system is operative.
HYD(on ground)
The PTU runs after the first engine start until the second engine is started.
The BLUE ELEC PUMP FAULT light and the YELLOW ENG 2 PUMP FAULT light come on when engines are off.
(If Installed) TPIS
The WHEEL TYRE LO PR alert threshold is set to flight level.
ATC 2(on ground)
The ATC 2 is not inhibited.
On ground, set the ATC selector to SYS 1.
LIGHTS
The (If Installed) strobe lights are not inhibited on ground when set to AUTO.
On ground, set the STROBE sw to OFF.
On ground, with flaps retracted, logo lights do not come on.
The taxi light, the runway turn-off light, and the takeoff light are inoperative on ground and in flight.
ELEC(on ground)
When only the APU generator or the GPU supplies the aircraft, the main galleys are not supplied.
ENG 2(on ground)
The FADEC supply is continuously on.
The automatic start abort is inoperative.
Use the MAN START procedure. Refer to FCOM
The minimum idle is inoperative when slats/flaps are extended.
Refer to OpsProc Minimum Idle on Ground
When FLX TO is selected, MCT thrust is set.
Use the TOGA for takeoff.
The thrust reverser is inoperative.
Refer to OpsProc Thrust Reverser
The (If Installed) BUMP function is inoperative.
Do not use the BUMP function.
SLATS(on ground)
The slats are slow from 1 to 0.
AIR COND(on ground)
Both air conditioning packs ram air inlet do not close.
WING A ICE(on ground)
On ground, when set to ON, the WING A ICE valve do not close at the end of the test sequence ( 30 s).
The WING A.ICE OPEN ON GND alert will be displayed on the EWD.
ADIRU and AVNCS VENTalert
The horn and the light are inoperative.
WATER SERVICING(on ground)
The preselect water servicing is inoperative.
CARGO DOOR(FWD and AFT)
Only the manual control is operative.
RECORDERS(on ground)
The CVR test and the CVR erase functions are inoperative.
The CVR and the DFDR do not stop after engine shutdown.
BRAKES(on ground)
The (If Installed) brakes cooling is inoperative.
(If Installed) AIRSTAIRS
The (If Installed) airstairs cannot be extended.
(If Installed) WEIGHT AND BALANCE SYSTEM
The WBS (If Installed) is inoperative.
ECAM(in flight and on ground)
  • On the WHEEL SD Page, the landing gear position indications associated with the LGCIU 2 are displayed XX.
  • The L/G LGCIU 2 FAULT alert is diplayed on the EWD.
(If Installed) FTIS
(If Installed) FTIS is inoperative.
- In flight
In the case of loss of the LGCIU 1:
AP and FD are lost.
Maximum landing capability is CAT 1.
"WTRUIB" 2025