As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING ROUTINE INSP A CRACK WAS FOUND IN ELASTOMER SURFACE OF BLUE CODED FREQUENCY ADAPTER THAT HAD REACHED MM LIMITATION OF 10MM. ALL (3) ADAPTERS WERE REPLACED AS A KIT IAE MFG RECOMMENDATIONS. SUGGEST MFG ALTER ELASTOMER FORMULATION TO IMPROVE SERVICE LIFE FOR THIS PART AS THIS HAS BECOME A VERY COMMON FAILURE FOR THIS PART WITH A 20,000 HR SERVICE LIFE. (K)