As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER TWO PACK LIGHT ON. GROUNDED - YES. OPERATED BOTH PACKS, NO DEFECTS NOTED. NR 2 PACK LIGHT REMAINED OFF. COULD NOT DUPLICATE REPORTED DEFECT, IAW AMM 21-00-00. NO FAULTS NOTED ON BITE BOX IN 263 LEGS. MEL 21-22E REMOVED. OPS CHECKED GOOD.