As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE: C, LT WING NR 10 V/C FLAP I/B LINKAGE O/B RIB NR 4, NR 5 AND NR 7 ROTARY ACTUATOR MOUNTING HOLES FOUND PITTING CORROSION (COUNT FROM I/B CLOCKWISE). BOLT HOLE NR 4, NR 5 AND NR 7 REPAIRED AS PER RS 574135066 AND REFER EO B747-5740-19269-A FOR REPEAT INSPECTION INSTRUCTIONS.