As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY DECLARED DUE TO CABIN DEPRESSURIZATION. REPLACED RT PACK FLOW CONTROL VALVE. OPS CHECKED OK. REPLACED APU COMPRESSOR DISCHARGE SENSOR [4951546], AND SPEED SENSOR [4950009]. OPS CHECKED GOOD. RAN BOTH PACKS AND MOTORED ENGINE, HAD GOOD DUCT PRESS AND ALL OPERATIONS NORMAL.