question relates to MEL 24
 

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.

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

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