What was found
AIRCRAFT WAS NOT GROUNDED: AN EMERGENCY WAS DECLARED DURING DESCENT INTO ABQ DUE TO THE FLIGHT CREW REPORTING THAT AROUND 20,000 FT THE CABIN PRESSURE EXCEEDED 10,000FT. THE FLIGHT CREW ACCCOMPLISHED QRH / ABNORMAL PROCEDURES AND LANDED SAFELY AT ABQ WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED TSM 21-31-00-810-808A AND 21-31-00-810-810A. NO FAULTS COULD BE CONFIRMED. ACCOMPLISHED OPERATIONAL TEST OF CABIN PRESSURE CONTROLLER SYSTEM PER AMM 21-31-00, AND PRESSURIZED AIRCRAFT PER AMM 05-53-00. NO FAULTS FOUND. MAINTENANCE NOTED THAT THE POST FLIGHT REPORT MESSAGES WERE WARNINGS, NOT FAULTS. MAINTENANCE DETERMINED THAT THE AIRCRAFT WAS OK FOR SERVICE.