As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START, MASTER CAUTION ON RECALL, LEFT PACK LIGHT REMAINS ON BUT RESETS - EXTINGUISHES WITH RECALL. GROUNDED - YES. ACCOMPLISHED PZTC BITE FOR L/H PACK REF AMM 21-61-00. BITE TEST GOOD. PREV FLT SHOWED L/H RAM AIR ACTUATOR FAULT. NO OTHER DEFECTS NOTED.