As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CHIP ENGINE LIGHT BEFORE LANDING. LANDING C/O NORMALLY. CONTAMINATION ON CHIP DETECTORS. CLEANED DETECTORS. HOVER FLIGHT REQUIRED TO CHECK FOR RE-OCCURENCES. CHIP LIGHT ON AGAIN JUST AFTER TAKEOFF (IN HOVER). LANDING C/O NORMALLY. CONTAMINATION AGAIN ON TU 208 DETECTOR. ACFT GROUNDED. REPLACED 5 ENG MODULES FOR INVESTIGATION AT MFG FACILITY.