Last night server crashed and some of mysql DB mailboxgroup got corrupted (missing few tables and one complete db)

I've already dumped & import all databases in mysql because of zmdbintegrityreport (it fixed almost all problems except that mysql bug that can be found on forums)
but the problem remains, incomplete databases - libexec/scripts/ returns some missing tables!

I've decided to do a workaround since we want to migrate zimbra from 32bit to 64 environment (clean inst.) but until then...

I can get accounts of corrupted mailboxgroup from zimbra.mailbox table but the problem is I can't remove them from Admin console nor zmprov so I could restore them from zimbra backup.
What else can I do? What would be the proper way?
Removing records from zimbra.mailbox, ldap etc?