As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIRE DETECTION WARNING WITHOUT BELL OR EVIDENCE OF FIRE ON THE T HANDLES. NR 2 ENGINE FIRE DETECT FAULT LIGHT A&B ILLUMINATED AND CIRCUIT BREAKER J7 POPPED. FOUND CHAFED WIRE IN THE NR 2 NACELLE. REPAIRED THE WIRE. OPERATIONAL TEST OF FIRE DETECTION SYSTEM GOOD. RETURNED TO SERVICE.