What was found
ACFT PREPARED TO LAUNCH FOR REVENUE FLT, AN ENGINE CHIP LIGHT ILLUMINATED. ENGINE SHUTDOWN NORMALLY. CHECK OF ELECTRICAL CHIP DETECTOR REVEALED A FEW SMALL METAL SLIVERS BUT SUBSEQUENT INSP REVEALED A SIGNIFICANT NUMBER OF METAL CHIPS ON THE MODULE 5 NON ELECTRIC CHIP DETECTOR. MODULE 1 NON ELECTRIC CHIP DETECTOR WAS FOUND CLEAN. DISCOVERED THE METAL GENERATION WAS NOT A ROUTINE PROBLEM BUT RATHER THE RESULT OF PARTS COMING LOOSE IN THE MODULE & CAUSING FOD TO OCCUR. . IT IS KNOWN THAT A PLUG HAD COME LOOSE FROM THE PRE TU 156 INTERMEDIATE PINION GEAR CENTRAL BORE AND A RETAINING BOLT HEAD SHEARED OFF ALLOWING 2 WASHERS ALONG WITH THE BOLT HEAD TO DROP INTO THE GEARBOX.