As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REF TASKCARD 63-4720-1-7800 FOUND EXISTING FUEL CROSS VENT CHECK VALVE P/N: 2020138-101 LOCATED AT LHW STRINGER U-9,O/B OF RIB 31 REFER TO AMM 47-21-03 FIG 401 SHEET 1 & SB767-47-0001, IT SHOULD BE LOCATED AT STRINGER U-13. NRC 9130578 ACCOMPLISHED EC/RA 4721-01009 REV ORG ADD EMP:V897897