As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE RIGHT ENGINE N1 ROLLED BACK APPROX 5 TO 7 PERCENT. SIGNIFICANT YAWING WAS NOTICED AS THE ENGINE ROLLED BACK AND THEN RESUMED NORMAL POWER. FELT LIKE WHEN ONE ENGINE COMPUTER GOES OFFLINE AND THEN RESUMES. DEEC DOWNLOADS REVEALED FAULT CODE 11, N2 MONOPOLE CIRCUIT OPEN. CHECKED WIRING FOR N2 MONOPOLE WITH NO DEFECTS NOTED. REPLACED N2 TRANSDUCER. OPS AND LEAK CHECKED GOOD. ALL WORK IAW LMM 77-10-05.