As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI FOR TAKEOFF THE LT PACK LIGHT CAME ON DURING MASTER CAUTION RECALL. THE LIGHT GOES OUT WHEN THE MASTER CAUTION RESET. ACFT GROUNDED. VERIFIED DISCREPANCY. PERFORMED LT PZTC BITE REF AMM 21-61-00. FOUND ACTUATOR EXT FAULT LOGGED. RESET SYSTEM. PERFORMED PZTC OPS CHECK REF AMM 21-61-00. GROUND RAN PACK FOR 1 HOUR. PERFORMED BITE AGAIN NO FAULTS FOUND. IN ADDITION PERFORMED RAM AIR SYS TEST REF AMM 21-51-00. SYS CKS NORMAL.