As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE CARGO WARNING MESSAGE, STARTED THE QRH & THE MESSAGE FLASHED AGAIN & STAYED OFF. DID NOT BLOW THE BOTTLES. FLT#4569 REPLACED LINE ON DUEL HEAT EXCHANGER FOR PRESSURIZING WATER JET & BOTH COALESCER SOCKS IAW CMM & AMM. PN 283584-1, PN 753689-3.