What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) A three person maintenance crew was taxiing aircraft to an overnight parking spot. The PIC was not sure if the aircraft would fit into the parking spot so he sent the 'right seat' out to marshall him. The ground marshall 9RIGHT SEAT0 gave the PIC a "all clear" sign and started turning the aircraft to the left. The right wing hit a parked deckloader.
As the FAA filed it
(-23) A THREE PERSON MAINTENANCE CREW WAS TAXIING AIRCRAFT TO AN OVERNIGHT PARKING SPOT. THE PIC WAS NOT SURE IF THE AIRCRAFT WOULD FIT INTO THE PARKING SPOT SO HE SENT THE 'RIGHT SEAT' OUT TO MARSHALL HIM. THE GROUND MARSHALL 9RIGHT SEAT0 GAVE THE PIC A "ALL CLEAR" SIGN AND STARTED TURNING THE AIRCRAFT TO THE LEFT. THE RIGHT WING HIT A PARKED DECKLOADER.