As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DEPARTING THE CREW OBSERVED A CHIP LIGHT INDICATION ON NR 2 RGB. THE ENGINE WAS SHUT-DOWN AND THE AIRCRAFT RETURNED TO POINT OF DEPARTURE WITHOUT FURTHER INCIDENT. MAINTENANCE FOUND CONTAMINATION ON THE RGB PLUG BELIEVED TO BE FROM THE STARTER SEAL. THE SEAL WAS REPLACED AND THE AIRCRAFT RUN AT HIGH POWER SETTING FOR 30 MINUTES WITH NO FURTHER INDICATION. (TC NR 20060920001)