As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLE FLT 2958 THE CREW REPORTED A BLEED LEAK NR 1 ENGINE AND NR 1 PACK VALVE FAILURE ON CLIMBOUT. THE AIRCRAFT RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE LEFT PACK BLEED TUBE BETWEEN THE PACK VALVE AND DUAL TEMP CONTROL VALVE. OPERATIONAL CHECKS WERE GOOD. ALSO REPLACED RELAY KO435.