As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) POCKETS 20,21,22 FOUND CRACKED SPAN WISE ON UNDER SIDE OF POCKET. AFTER REMOVAL OF POCKET FROM THE BLADE, IT WAS FOUND THAT THE POCKETS WERE NOT BONDED TO THE BACK FACE OF THE SPAR. THIS ALLOWED THE POCKETS TO WORK UP AND DOWN CAUSING THE SURFACE CRACKS.