As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PUSHBACK ZONE TEMP LIGHT ILLUMINATED, EXTINGUISHED WITH MASTER CAUTION RESET. ACFT GROUNDED. BITE CHECK OF ZONE TEMP CONTROLLERS SHOWS NO FAULTS. NO PRIOR HISTORY 90 DAYS IN TRAX. SYSTEM OPS NORMAL, REF AMM 21-60-00. RAN PACKS WITH NO DISCREPANCIES NOTED. GROUND VERIFICATION SATISFACTORY.