As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) FOUND DURING INSPECTION, 4 FLEX SHAFT ASSEMBLIES CRACKED ON THE SWAGED FITTING ENDS ON 2 THRUST REVERSERS ON OUR ACFT. 2 WERE FOUND ON THE LT ENGINE AND 2 ON THE RT ENGINE. 3 WERE PN 121754-2 AND ONE 121754-3. LOOKING AT THE FAILED PARTS IT APPEARS THAT THE MATERIAL IS ALUMINUM. ALL CRACKS WERE SIMILAR IN NATURE. PARTS HAVE BEEN SENT TO MFG FOR EVALUATION.