What was found
AFT CABIN SMOKE ALARMS ACTIVATED IMMEDIATELY AFTER TAKEOFF, ACRID ODOR OBSERVED ON FLIGHT DECK AND IN CABIN, F/A NOTIFIED FLIGHT DECK OF SMOKE. EMERGENCY RETURN TO AIRFIELD .
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFT CABIN SMOKE ALARMS ACTIVATED IMMEDIATELY AFTER TAKEOFF, ACRID ODOR OBSERVED ON FLIGHT DECK AND IN CABIN, F/A NOTIFIED FLIGHT DECK OF SMOKE. EMERGENCY RETURN TO AIRFIELD .