Nope , it does not have any Primary Maintenance at ERM or ALLP.!
The primary maintenance is done @TVC only with following RSA pattern..
06304 TVC - ERS
06305 ERS - CAN...
more...
06308 CAN - ALLP (SM at CAN)
06307 ALLP - CAN
06306 CAN - ERS (Again SM at CAN)
06303 ERS - TVC