As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT WING ON L/E DROP FOUND 1 CRACK .050" LONG ON SKIN UPPER SURFACE AT STA XW 320 AFTER REMOVE PLATE ( REMOVED PART AND SEE NRC N00169 ). SKIN REPAIRED WITH DOUBLER IAW SRM 57-10-00 FIG 55 SHT 1 AND 2 VOL 1. SEE DETAILED PARTS TRAVELER N01887/ F171887.