As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS: AFTER LANDING IN NARITA, THE MECHANIC AND THE NEW BOARDING OUTBOUND CREW REPORTED A HOLE IN THE LEADING EDGE OF THE LEFT SLAT OUTBOARD OF NUMBER ONE ENGINE. THE AIRPLANE FLEW AND FELT FINE ON A HAND FLOWN APPROACH TO 34L. PANEL MISSING ON OUTBOARD NR 1 ENGINE. REPAIRED AND 3 LEFT SLAT BY DOUBLER REPAIR PER SRM 57-00-01. INSTALLED MISSING PANEL 438EL ON NR 1 ENGINE. INSPECT AND OPS CHECK PER MM.