As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT 3196 CREW REPORTED PACK 1 OVERLOAD IAW LG PG 3622567, MEL 2129 THE ACFT WAS REMOVED FROM SERVICE. R & R OVER PRESS SWITCH IAW MM 21-51-06. PERFORMED TROUBLESHOOTING IAW FIM 21-51-00-810-801 STEPS 1 - 3. MEL IS RESTORED, THE ACFT RETURN TO SERVICE.