As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK HIGH TEMP. LEFT PACK TURNED OFF. CABIN ALTITUDE INCREASED AND LOST PRESSURIZATION. (FLT#4722) CLOSED PRESSURIZED A/C TO 1.0 DP. SYSTEM PRESSURIZED NORMALLY WITH NO DEFECTS NOTED IAW AMM. OPS CHECKED LEFT PACK. OPS CHECKED GOOD WITH NO DEFECTS NOTED IAW AMM.