As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB-OUT, ENROUTE, CREW HEARD A POPPING SOUND FROM THE LEFT SIDE OF THE AIRCRAFT AS THE AIRCRAFT PASSED FL320. NO AIR WAS FELT COMMING FROM THE VENTS. CREW DONNED OXYGEN MASKS WHEN THEY NOTED CABIN ALTITUDE APPROACHING CLIMBING TOWARD 10,000 FT. EMERGENCY DESCENT WAS INITIATED AND EMERGENCY WAS DECLARED. AIRCRAFT DIVERTED.