EE OPENED SIDE DOOR ON ENGINE COMPARTMENT OF CAT LOADER TO CHECK ENGINE OIL. APPARENTLY EE HAD NOT OPENED THIS DOOR COMPLETELY AND THE SHOCK ABSORBING PROP COULD NOT HOLD IT OPEN. THE DOOR FELL CLOSED, STRIKING THE EE IN THE BACK OFTHE HEAD, FORCING HIS FACE INTO ANOTHER ACCESS DOOR AND CAUSING FACIAL LACERATIONS.