As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING A 50 HR INSPECTION, A PIECE OF THE P2.8 FLAPPER VALVE WAS FOUND IN THE ENGINE FIRE BOTTLE COMPARTMENT OF THE NR 2 ENGINE. THE FLAPPER VALVE IS POST SB41042. SB41042 WAS INTRODUCED AS A RESULT OF A SIMILAR PROBLEM WITH THE PRE SB VALVES.