As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT PACK LIGHT ILLUMINATED ON DEPARTURE. FOLLOWED QRH PROCEDURE, WOULD NOT RESET. PACK LIGHT WENT OUT AFTER APPROX 20 MIN. PERFORMED FIM TASK 21-62, TASK 801 ON LT PACK TEMP CONTROLLER. OPS CHECKED GOOD. LIGHT STAYS EXTINGUISHED AT THIS TIME. NO HISTORY ON LT PACK CONTROLLER FOR 60 DAYS. ACFT OK FOR SERVICE.