As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLAP ACTUATOR 2L INSTALLATION, IT WAS FOUND THAT THE EDP SUCTION LINE WAS CHAFING ON THE FIRE EXTINGUISHER TUBING ON THE LT WING INBD AFT SPAR. THE DAMAGE ON THE FIRE EXTINGISHER TUBE IS OUT OF LIMITS IAW AMM 20-10-03, TABLE 802. EDP SUCTION LINE IS OUT OF LIMITS. BOTH LINES HAVE BEEN REPLACED.