As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING AN IDLE NR 2 ENGINE RUN, FOUND FUEL DRIPPING FROM THE HMU JUST ABOVE FWD THE CONNECTOR. ACFT GROUNDED. REMOVED AND REPLACED THE NR 2 ENGINE HMU IAW N8473000, N8473001. TESTED IAW AMM 71-00-00-800-811-F00, TABLE 502.