As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COMPONENT TEAR DOWN FINDINGS: BLOWER MOTOR END CAP BEARING P/N:M4000AC-3, FAILED INTERNALLY, CAUSING HIGH MOTOR DRAG AND HEAT BUILDUP. HEAT SINK RESISITORS, WIRE TERMINALS AND NOISE SUPPRESSORS SHOWED HIGH HEAT AREAS (MOST LIKELY DUE TO HIGH CURRENT DRAW FROM MOTOR). NO OTHER ASSEMBLY / PART FAILURES NOTED AT DISASSEMBLY OF COMPONENT. UNIT TO BE OVERHAULED AND RETURNED TO SERVICE.