As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LIGHT SMOKE AND FUMES ASSOCIATED WITH RIGHT RECIRCULATION FAN LEFT AND RIGHT RECIRCULATION FANS SELECTED OFF. CREW CONFIRMED RIGHT RECIRCULATION FAN THE CAUSE. PERFORMED CONDITIONAL INSPECTION PER 05-51-58 AND FOUND RIGHT RECIRCULATION FAN MAKING NOISE. FAN NIS LAX, PLACARD PER MEL 21-25-01C, ALSO COMPLIED WITH "SMOKE IN THE PLANE QUESTIONNAIRE. HNL REMOVED AND REPLACED RIGHT RECIRCULATION FAN PER AMM 21-25-01. OPERATIONAL AND LEAK CHECKS OK.