As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATW - FOUND NR 1 ENGINE OTBD FIRE BOTTLE DISCHARGED DUE TO CHAFING OF BOTTLE ON COWLING BOLTS (REF W/C NR 2 THIS WORK PURCHASE). CORRECTIVE ACTION: REPLACE NR 1 ENGINE OUTBOARD FIRE BOTTLE, OPS CHECK OK, S/N OFF CN1662M. S/N ON CL9784M.