As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT ENGINE N2 FLUCTUATION INFLIGHT. COMPLIED WITH QRH. N2 SPIKE OVER 104 PERCENT AT LEAST TWO TIMES WITH POWER REDUCED. OAT -6. NO VIBE GAUGE INDICATION. DIVERTED TO ORF. FOUND DCU NR 2 CAUSING N2 FLUCTUATING INDICATION. REMOVED AND REPLACED DCU NR 2 IAW AMM 31-41-04. OPS CHECK GOOD. (M)