As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT FL390 DETECTED SMOKE AND PERFORMED AND EMERGENCY DECENT AND DIVERTED TO OMA. NO VISIBLE SMOKE UNTIL PACKS OFF. A HAZE DEVELOPED. REPLACED AFT ACM TURBINE REMOVED & REPLACED BOTH LT & RT COALESCER SOCKS & O-RINGS. F/T'D ACMM BY OPERATING APU , AT THIS TIME NO DEFECTS NOTED. IAW MM 21-51-00.