W DOC AIRBUS | TSM A320F

Spurious ENG BLEED fault indication on the Engine 2


TASK 36-11-00-810-958-A
Spurious ENG BLEED fault indication on the Engine 2


1. Possible Causes
  • BMC-2 [1HA2]
  • P/BSW-ENG 2 BLEED [4HA2]
  • wiring
2. Job Set-up Information
 A. Referenced Information
REFERENCE
DESIGNATION
AMM 36-11-00-740-001
BITE Test of the BMC 1(2)
ASM 361102
AMM 36-11-34-000-001
Removal of the BMC
AMM 36-11-34-400-001
Installation of the BMC
3. Fault Confirmation
Subtask 36-11-00-740-071-A ** ON A/C NOT FOR ALL
A. Test
   (1) Do the BITE test of the BMC2 AMM 36-11-00-740-001.
4. Fault Isolation
Subtask 36-11-00-810-252-A ** ON A/C NOT FOR ALL
A. If the BITE test gives the maintenance message:
BMC2 OR BLEED FAULT IND 4HA2
   (1) If the fault continues:
     (a) If the fault continues:
  • do a check and repair the wiring ASM 361102 between:
    . pin A/C2 of the engine 2 bleed pushbutton switch (4HA2) and pin AA/4A of the BMC2 (1HA2)
    . pin A/C2 of the engine 2 bleed pushbutton switch and pin AA/4A of the BMC2
    . pin A/C3 and the ground.
Subtask 36-11-00-810-252-D ** ON A/C NOT FOR ALL
A. If the BITE test gives the maintenance message:
BMC2 OR BLEED FAULT IND 4HA2
NOTE: If the maintenance message BMC2 OR BLEED FAULT IND 4HA2 comes into view with no associated ECAM warning, no trouble shooting procedure is necessary.
   (1) If the fault continues:
     (a) If the fault continues:
  • Do a check and repair the wiring ASM 361102 between:
    . Pin A/C2 of the engine 2 bleed pushbutton switch (4HA2) and pin AA/4A of the BMC2 (1HA2)
    . Pin A/C2 of the engine 2 bleed pushbutton switch and pin AA/4A of the BMC2
    . Pin A/C3 and the ground.
Subtask 36-11-00-740-072-A ** ON A/C NOT FOR ALL
B. Do the test given in Para. 3.
[Rev.8 from Aug 2018] 2026.04.04 04:33:51 UTC