As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST LT ENGINE OUTBOARD COWLING ON TAKEOFF. ON APPROACH LT ENGINE GAVE FIRE WARNING. MADE PRECAUTIONARY ENGINE SHUT DOWN AND DISCHARGED FIRE BOTTLE. REMOVED AND REPLACED LT ENGINE HINGE COWLING AND UPPER BEAM IAW ATR JIC 54-00-00 AND 54-12-61, FOR MORE INFO SEE NRWC NR 200402 AND 200554. REPLACED LEFT ENGINE FIRE EXTINGUISHER BOTTLE IAW JIC 26-21-71. ALSO REPLACED LT ENGINE FIRE BOTTLE AGENT NR 1 SQUIBB CARTRIDGE IAW JIC 26-21-72. OPT SATISFACTORY AT THIS TIME.