What was found
PMA BOLT, P/N 772568 QQ, REPLACMENT FOR OEM BOLT P/N 772568, FAILED AFTER ZERO HOURS AND ZERO CYCLES IN SERVICE. BOLT FRACTURED CAUSING HEAD TO BE INGESTED INTO THE N-2 COMPRESSOR DRIVE TURBINE WHERE EXTENSIVE DAMAGE WAS INFLICTED. LABORATORY ANALYSIS HAS REVEALED THE LACK OF NICKEL HAD CAUSED CADMIUM INBRITTLEMENT. SUBMITTER RECOMMENDED REMOVING AND REPLACING ALL PMA BOLTS P/N 772568 QQ FROM BATCH NR'S 30246 AND 30248 FROM SERVICE WITH LESS THAN 300 HOURS/CYCLES AT OPERATOR'S EARLIEST CONVENIENCE.