As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU EXHAUST DOOR ACTUATOR AT CUTOUT FOUND PREVIOUS REPAIR CHAFED. PREVIOUS REPAIR ON APU EXHAUST DOOR ACTUATOR AT CUTOUT AREA EVALUATED AND FOUND NOT IAW SRM 53-00-01 FIG 5 VOL I. EXISTING DOUBLER FOR REPAIRED APU SKIN AT APU EXHAUST DOOR ACTUATOR CUTOUT AREA REMOVED AND REPLACED AS PER SRM 51-35-01 VOL II.