THE EMPLOYEE HAD REMOVED A BENT DOOR LATCH FROM 22.9 KV FEEDER TO STRAIGHTEN. HE PLACED THE LATCH ON A METAL SKID AND STRUCK THE LATCH WITH A HAMMER. THE LATCH FLEW UP AND STRUCK THE EMPLOYEE IN THE LOWER LIP AND LEFT FRONT TOOTH CAUSING A CHIP. AS THE EMPLOYEE TURNED SUDDENLY TO AVOID LATCH, HE SUFFERED A MUSCLE PULL IN HIS LOWER BACK.