As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BRAKE ASSEMBLY, PN 5010520-1, FAILED PREMATURELY. ONE EACH PISTON LEAKING FROM INSULATOR AREA. PISTON INTERNALLY FILLED WITH FLUID. EVIDENCE OF T-SEAL FAILURE. SUBMITTER STATED THIS IS A CONTINUAL DISCREPANCY. BRAKE ASSEMBLY WAS JUST UPGRADED WITH LATEST RETURN PINS IN MAY, 2000. NOTE: OEM PARTS INSTALLED IN BRAKE ASSEMBLY AND THE MOST RECENT BRAKE CONFIGURATION P/N 5010520-1. (X)