As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MFR FLIGHT NR 2421: FLAP POWER CAUTION LIGHT ILLUMINATED AFTER TAKEOFF WHEN FLAP SELECTOR WAS SET TO 0 DEGREES. CHECKLIST WAS COMPLETED AND CAUTION LIGHT EXTINGUISHED. FLAPS WORKED FOR REMAINDER OF FLIGHT. MAINTENANCE REMOVED AND REPLACED FLAP POWER UNIT IAW AMM TASK 27-52-01-000-801 AND 27-52-01-400-801. OPS AND LEAK CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.