Around 1600 Rescue 45 along with Engine 55 Ogden were dispatched to cover Sta. 71 Chester Heights. 71 was operating at a Box Alarm in Aston Twp.While standing by Sta. 71 Units were alerted to Concord Twp for a box alarm. Units arrived with nothing showing. The Rescue was made available a few minutes later returned to Sta. 71. There were no further calls during the rest of the cover.