As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 2 ENGINE FF 2500-5000 LB FLUCTUATION- ON CLIMB OUT, NOTICED FLUCTUATING FUEL FLOW EFFECTING A SPIKE IN N1 (5-10 PERCENT) EGT TEMP VARY 3-5 DEGREES ALONG WITH A SLIGHT N2 SPIKE (2 PERCENT) NOTIFIED MECHANIC, RETURNED TO LANDING RWY 36R. TAXI IN, INSTRUMENTS APPEARED NORMAL. REMOVED AND REPLACED NR 2 HMU IAW MM. IAW MOCC REQUEST REMOVED AND REPLACED NR 2 MAIN FUEL FILTER IAW A300 MM. ALL CHECKS COMPLIED WITH NORMALLY.