As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4541 - DURING DESCENT INTO MCO, A RAPID LOSS OF CABIN PRESSURE WAS EXPERIENCED. AS A PRECAUTIONARY MEASURE THE CREW USED THE OXYGEN MASKS. AN EMERGENCY WAS DECLARED AND THE LANDED SAFELY IN MCO. MAINTENANCE REMOVED AND REPLACED THE LEFT WATER SEPARATOR OUTLET DUCT ASSEMBLY. OPERATIONAL CHECKS GOOD. AIRCRAFT OK FOR SERVICE. (M)