What was found
RIGHT PAC FLOW DISAGREE ALERT CAME ON IN FLT (HISTORY). FOUND RIGHT BULKHEAD CHECK VALVE FLAPPER DAMAGED AND STUCK CLOSED. REPLACED FLAPPER AND END ASSY IAW MM 21-20-01, OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
RIGHT PAC FLOW DISAGREE ALERT CAME ON IN FLT (HISTORY). FOUND RIGHT BULKHEAD CHECK VALVE FLAPPER DAMAGED AND STUCK CLOSED. REPLACED FLAPPER AND END ASSY IAW MM 21-20-01, OPS CHECK GOOD.