What was found
LEFT BLEED DUCT WARNING IN FLIGHT, CABIN ALTITUDE CLIMBED WITH LT PACK OFF, EMERGENCY DECLARED, RAPID DESCENT CAUSED OXYGEN MASKS TO DEPLOY. MAINTENANCE IS TROUBLESHOOTING.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT BLEED DUCT WARNING IN FLIGHT, CABIN ALTITUDE CLIMBED WITH LT PACK OFF, EMERGENCY DECLARED, RAPID DESCENT CAUSED OXYGEN MASKS TO DEPLOY. MAINTENANCE IS TROUBLESHOOTING.