AIR BLEED IN MAINTENANCE

AIR BLEED in Maintenance without ECAM status CFDS fault msg.
TSM 36-00-00-810-802-A

Air Bleed in maintenance is a common msg of our cockpit and very irritating to LM Engineers; especially when some fussy pilot force to remove the warning or asking to make us DMR entry just prior to departure.

One can easily find 6 to 8 snags as above C/F under MEL everyday.

Here is few tips/Guidelines from AMM which can be followed to cancel the msg and minimise the snags on fleet:-

Open CB 2ww and 3ww(FWC1&2) for 5 to 10 sec to cancel the Air bleed maintenance msg then close the CBs.

It is to be noted that 2 minutes are necessary for full initialisation of FWC.Further to this,BMC reset will not cancel the Air bleed msg on ECAM status page.

(A)AIR BLEED STATUS MSG come into view after power transfer

it will go after the first subsequent Engine Start.This will not come after engine shut down.

(B)AIR BLEED STATUS MSG AFTER ENGINE S/D
The msg is applicable as it appears after Engine shut Down in the PFR and an ECAM warning with related CFDS message.

To erase the Air Bleed msg,the only condition is to start the FWC flight phase 1,After Engine S/D the a/c will be in Flight Phase 10.300 seconds later the start of flight phase 1 should reset the Air Bleed msg.

If the fault continue,
Go to MCDU SYSTEM REPORT/PNEU MENU PAGE and push the Line Key adjacent to the BMC1(2).

If BMC 1(2) page does not comes into view,c/o TSM Task.

If BMC 1(2) page  comes into view then the the Air Bleed maintenance msg on status page is an unwanted msg and can be ignored.

Open the AIR BLEED ENG1 and ENG 2 monitoring CBs 2HA1,3HA1 Or 2HA2 &3HA2 during 5 to 10 sec and then CLOSE them.

Note:-Always follow the relevant AMM&TSM.

Regards,
-pramodara