question relates to MEL 24

[airguy2012]

Does anybody know why MEL A321 says NO-GO for contactor 1PC2 while MEL A330 says NO-GO for 1PC1?
I think these 321 and 330 electrical system are same in nature.

[Tinwacker]

Electrical systems are similar in nature!!

Will review the wiring diagram but suspect that its to do with ETOPS for the DC Tie Contactor and what the DC BUS 1 is suppling

TW

[Tinwacker]

ATA 24

A330 ELEC DC BUS 1 FAULT

A number of items are made inop with this DC BUS 1 failure, but most important are the following:
TR1. L and R FUEL STBY and ZONE CTLR 1 single channel which are NO GO iaw the respective MEL ATA's

The R FUEL PUMP 2 affects ETOPS

CAPT WIPER affects land capability

Crew awareness:
Aircraft is down graded to CAT 3 SINGLE
PACK 1 at fixed temp

A321 later....
.... but I am sure that it will be something similar and on the lines of containing a component or system which is also NO GO iaw MEL ATA

TW