As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3852 -FIRE- DURING TAXI IN RAMP REPORTED A SMALL FIRE FROM THE LEFT ENGINE TAILPIPE. FIRE EXTINGUISHED WITHOUT THE USE OF EXTINGUISHING AGENTS. CORRECTIVE ACTION: MAINTENANCE FOUND NO EVIDENCE OF FIRE. PERFORMED BSI OF #1 ENGINE AND TAIL PIPE FIRE INSPECTION PER 737 AMM 71-00. LEAK CHECKS OK, AIRCRAFT RETURNED TO SERVICE.