As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING T/C NG-28FCD-18090-1, FOUND NR 2 MAIN TANK COMPENSATOR PROBE F15R AND TANK UNIT PROBE F1R OUT OF CAPACITANCE LIMITS INITIATED MIG2C S/N 40-0009478. GROUNDED - YES. ACCOMPLISHED T/C NG-28FCD-18090-1 AND 78528000-LINE, ON THE NR 2 MAIN TANK, REMOVED AND REPLACED MAIN TANK COMPENSATOR PROBE F15R AND TANK UNIT PROBE F1R REF AMM 28-41-21/401. OPERATIONAL CHECK SATISFACTORY.