What was found
LOSS OF CABIN PRESSURE AT FL450 ENROUTE FROM MYNN TO KHPN. CREW DECLARED AN EMERGENCY, PERFORMED EMERGENCY DECENT AND DIVERTED TO KMCO WHERE THEY LANDED UNEVENTFUL. UPON INSPECTION BY MAINTENANCE, A WIGGINS FITTING (CLAMP) ON A BLEED AIR LINE ATTACHING TO THE THE LH AIR CYCLE MACHINE WAS FOUND FAILED. THE FAILURE POINT WAS THE LATCHING MECHANISM AND THIS ALLOWED THE CLAMP TO DETACH FROM THE BLEED AIR LINE ALLOWING AIR PRESSURE TO VENT INTO THE REAR EQUIPMENT BAY INSTEAD OF THE CABIN. REPLACEMENT OF THE FITTING AND SEALS RESULTED IN SATISFACTORY OPS AND LEAK CHECKS.