As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1433 - CABIN ODOR - SHORTLY AFTER TAKEOFF ACRID ODOR IN COCKPIT AND CABIN. SELECTED COND PAGE AND HAD AMBER "FAN". TURNED CABIN FAN SWITCH (OVERHEAD) OFF AND ODOR WENT AWAY. MAINTENANCE REMOVED AND REPLACED THE RECIRCULATION FAN PER MM 21-21-51-04 AND REPLACED BOTH FILTERS PER AMM 21-21-41-04.