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 MASTER CAUTION RECALL. ACFT GROUNDED. ACCOMPLISHED PACK /ZONE TEMP CONTROLLER BITE TEST PROCEDURES IAW AMM 21-61-00-700-806-002, AND FAULT CLEARED WITH RESET. SUBSEQUENT BITE TEST SHOWS NO CURRENT FAULTS, OPS CHECKED GOOD, NO HISTORY 30 DAYS.