As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT OB FOREFLAP OB TRACK CHAFED ON BOTTOM SIDE. GENERATED NEW N/R FOR R/R; MATERIAL LOSS RANGE .941 TO .978 OUT OF LIMITS IAW CMM 57-53-18; REPLACED FLIGHT RECORDER MODULE PART NUMBER 69-37325-52 WITH 69-37325-168 OP CHECK WILL BE COMPLIED WITH ON EO 31-31-73 AND GROUND FUNCTIONAL TEST D2000-172.