What was found
LEFT PACK "OFF" LIGHT WITH ASSOCIATED "L PACK OFF" DISPLAYED IN CRUISE WITH PACK SELECTED TO "STBY" (REF DF583) DUCT PRESSURE AND PRESSURIZATION NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT PACK "OFF" LIGHT WITH ASSOCIATED "L PACK OFF" DISPLAYED IN CRUISE WITH PACK SELECTED TO "STBY" (REF DF583) DUCT PRESSURE AND PRESSURIZATION NORMAL.