As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSELAGE SKIN AROUND APU EXHAUST IS CHAFED AT TWO LOCATIONS BETWEEN F.S. 654.20 TO F.S. 672.20. CHAFES ARE APPROX 0.125 LONG, 0.125 WIDE AND 0.015 DEEP. (C-CHECK) RO: 10/16/2019 REMOVED DAMAGE @ FS 654 - FS 672.20 AROUND APU EXH IAW REO.