As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON CLIMB-OUT, NR 1 ENGINE FIRE T-HANDLE ILLUMINATED AND FIRE TONE SOUNDED. ALL ENGINE INDICATIONS REMAINED NORMAL AND NO UNUSUAL SMELLS WERE EVIDENT. CLEANED CORROSION FROM PINS ON CONNECTORS OF NR 1 ENGINE FIRE DETECTOR CONTROL AMPLIFIER FIRE DETECTION. SYSTEM CHECKED GOOD.