As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED IN FLIGHT MULTIPLE TIMES WENT OUT WITH TRIP RESET. ACFT GROUNDED. PERFORMED PACK/ZONE TEMP CONTROLLER AND RAM AIR ACTUATOR BITE TEST, REF AMM TASK 21-61-00-700-806-002. ALL S/P REVERSED REACTIVATED LT PACK SHUTOFF VALVE OPENED CARGO HEAT DUCT VALVE. OPS CHECK GOOD.