As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AIRCRAFT 7104, L/P 5251830) "DOOR FLT LOCK 4R" STATUS MSG. PERFORMED FLT LOCK CONTROL TEST PER B777AMM 52-11-26 FOUND 4R FLT LOCK NOT ENGAGING VERIFIED GOOD GRD AT PIN 2 AND 3 OF CONN DM52101 VERIFIED 28 VOLTS AT PIN 1 OF DM52101 WHL PERFMG FLT LOCK TEST RANG OPEN FROM PIN 1 TO 2 ON 4R FLT LOCK ACT. RPLCD 4R DOOR FLT LOCK AND TESTED PER B777 AMM 52-71 OPS NRML.