As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED MAINTENANCE AN INSPECTION OF THE LEFT OUTBOARD FLAP REVEALED A 1.5 INCH CRACK IN THE UPPER SKIN ALONG THE TRAILING EDGE LOCATED BETWEEN THE FIRST AND SECOND RIB OUTBOARD FROM THE INBOARD END. THE CRACK WAS REPAIRED BY STOP DRILLING AND INSTALLING A DOUBLER.