[…] aircrafts electrical system on and check the gauges for fuel or anything out of the ordinary. Every few seconds I felt the aircraft tug, as John towed the aircraft and I to the pumps. After checking the gauges, I was happy to find that both wing tanks were full, so I opened up the door, jumped out and ran ahead to tell John to flip a bitch and pull the bird back to the tower. At the tower I used the aircraft checklist to do a walk around inspection.