As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING POSTFLIGHT, FOUND BOTH AFT BAY HEAT EXCHANGER FANS INOP. R & R BOTH HEAT EXCHANGERS FANS. OPS CHECKS GOOD. MX RECOMMENDS OTHER OPERATORS CHECK FOR OPS AS THERE IS NO COCKPIT INDICATION WHEN THESE FANS FAIL AND THEY ARE FOR HEAT PROTECTION FOR THE COMPOSITE REAR PRESSURE BULKHEAD STRUCTURE.