As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN TRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT DURING CLIMB SHORTLY AFTER TAKEOFF. PILOT ABORTED FLIGHT AND RETURNED TO THE BASE. MECHANIC PERFORMED UNWANTED PARTICLE INSPECTION AND FOUND ONE SLIVER. NORMAL FINDINGS AFTER MAJOR MAINTENANCE (MAST REPLACEMENT) IAW BH407GX MM DMC-407-A-63-00-00-01A-310A-A TABLE 1. NO ACTION REQUIRED. HOWEVER, MECHANIC PERFORMED DRAIN AND FLUSH, CHANGED TRANSMISSION OIL FILTER. PILOT PERFORMED GROUND RUN AFTERWARDS WITH NO FURTHER CHIP INDICATIONS.