As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT EXPERIENCED A DUAL BLEED TRIP IN FLIGHT RESULTING IN LOSS OF PRESSURIZATION. CREW CONDUCTED AN EMERGENCY DESCENT AND DECLARED AN EMERGENCY. FLIGHT DATA RECORDER, COCKPIT VOICE RECORDER, AND ACMS CARD REMOVED FOR ANALYSIS. ENGINE BLEED AIR HEALTH CHECKS CARRIED OUT WITH PRECOOLER VALVES FAILING ON BOTH NR 1 AND NR 2 ENGINES.