As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
*** WHILE AIRCRAFT WAS IN FOR HEAVY CHECK *** MAINTENANCE REPORTED A CRACK ON THE RT WING FIXED LEADING EDGE SKIN AT SLAT TRACK NR 4 CUTOUT. MAINTENANCE CUTOUT AND REPAIRED CRACK ON THE RT WING FIXED LEADING EDGE SKIN AT SLAT TRACK NR 4 CUTOUT IAW SRM 51-10-03 AND 57-49-01.