ATC1 or ATC2 System Inoperative A320
1.Possible Causes:
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
| Ref. AMM 34-52-00-740-004 | BITE Test of the Air Traffic Control (ATC) |
3. Fault Confirmation
SUBTASK 34-52-00-710-051-A
A. Test
(1) Not applicable, the fault is evident.
4. Fault Isolation
SUBTASK 34-52-00-810-066-B
A. If the warning light on the ATC/TCAS control unit comes on:
— Pull the C/B (Panel 49VU for ATC1, Panel 121VU for ATC2) of the selected ATC on the ATC/TCAS control unit.
If the warning light goes off, then the selected ATC is faulty.
— do the BITE test of the faulty ATC Ref. AMM 34-52-00-740-004.
(1) If the test gives a maintenance message:
— Do the trouble shooting procedure related to the maintenance message.
