What was found
LGA - FLT NR 0329 - DURING CLIMB, FLIGHT EXPERIENCED A RAPID DECOMPRESSION. AN EMERGENCY WAS DECLARED AND A DESCENT WAS MADE TO 10,000 FEET. CABIN PRESSURE DID NOT RAISE ABOVE 14,000 FEET PRE-EMPTING THE OXYGEN MASKS TO DEPLOY. THE FLIGHT DIVERTED TO LGA AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE DUCT ASSEMBLY ON THE RIGHT PACK. OPERATIONS CHECKED GOOD. (M)