What was found
DURING HMV IT WAS FOUND THAT A C-2 CARGO COMPARTMENT FIRE EXTINGUISHER DISCHARGE LINE WAS CHAFING ON APU AIR SUPPLY DUCT. REPLACED LINE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HMV IT WAS FOUND THAT A C-2 CARGO COMPARTMENT FIRE EXTINGUISHER DISCHARGE LINE WAS CHAFING ON APU AIR SUPPLY DUCT. REPLACED LINE.