As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER LEVEL OFF NOTED THAT MAIN GEARBOX OIL PRESSURE WAS STEADY AT 50 PSI WITH OCCASSIONAL DIPS TO 49 PSI. RETURNED TO HOUMA. MAINTENANCE FOUND THE TRANSMISSION TO BE OVERSERVICED. DRAINED THE FLUID LEVEL TO THE PROPER LEVEL. PRESSURE CHECKED GOOD ON CHECK FLIGHT.