Recover from a backed recovery area

Oracle 11gr2 

I do full backups to disk every day an then backup the recovery area to tape. I need to restore a archive log from three days ago but I don't know and I did not fine any info to do this.

Thank you for any help

try 1)

RMAN> run {

ALLOCATE CHANNEL c1 DEVICE TYPE DISK;

restore archivelog sequence 327 thread 2;

}

using target database control file instead of recovery catalog

allocated channel: c1

channel c1: SID=355 instance=psytfpe1 device type=DISK

Starting restore at 12-DEC-11

released channel: c1

RMAN-00571: ===========================================================

RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============

RMAN-00571: ===========================================================

RMAN-03002: failure of restore command at 12/12/2011 15:16:29