What was found
GAT RETURN, DUE TO RT PACK LT ON, WOULD NOT RESET IAW QRH. REMOVED AND REPLACED PACK TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-4. OPS AND LEAK CHECK GOOD. (K)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
GAT RETURN, DUE TO RT PACK LT ON, WOULD NOT RESET IAW QRH. REMOVED AND REPLACED PACK TEMPERATURE CONTROL VALVE IAW AMM 21-51-10-4. OPS AND LEAK CHECK GOOD. (K)