As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMBOUT AT 6000 FT FLOW LIGHT ILLUMINATED. AT ALTITUDE OF 10000 (CABIN ALT 9000) FLOW LIGHT WENT OUT. WHEN CLIMB INITIATED FLOW LIGHT CAME ON AGAIN AND CABIN ALT WARNING SOUNDED. FLT ATTENDANT REPORTED LOUD NOISE FROM AROUND 2 L DOOR AREA. REPLACED BLOWN DUCT BOOT FROM LEFT PACK OUTLET.