As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SMOKE ODOR AND WHITE HAZE FOUND AROUND ROWS 7-10. TROUBLESHOT IAW FIM 21-20-00-810-801-A. WHEN OPERATING INDIVIDUAL PACKS FOUND ODOR COMING FROM NR 2 PACK. PACK TURNED OFF AND ODOR CEASED. NO OTHER CAUSE FOUND. ACCOMPLISHED THE MAINTENANCE OPS TEST OF THE ELECTRONIC RACK VENTILATION SYSTEM IAW AMM 21-28-00-810-801-A. VERIFIED VENT SHUFOFF VALVE AND GROUND SHUTOFF VALVE OPERATE NORMALLY. REMOVED AND REPLACED NR 2 ACM IAW AMM 21-51-05. OPS AND LEAK CHECKED OK.