As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS PREPARING TO TAKEOFF AFTER START UP, WHEN THE MAIN TRANSMISSION CHIP LIGHT ILLUMINATED. PILOT SHUTDOWN THE ACFT. REMOVED MAIN TRANSMISSION CHIP DETECTOR & FOUND IT SATURATED WITH METAL PARTICLES. IAW THE MM, DRAINED & FLUSHED THE MAIN TRANSMISSION OIL SYS, CHANGED THE OIL FILTER, & CONDUCTED A GND RUN. IT FAILED THE GND RUN UP. MAIN TRANSMISSION ASSEMBLY R & R. THIS TRANSMISSION ASSEMBLY HAD BEEN INSTALLED AFTER BEING REPAIRED ON 02 16 2016. THERE HAD BEEN TWO OTHER CHIP INDICATIONS BEFORE THE ONE THAT OCCURRED ON 05 16 2016.