What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
Narrative: on August 24, 1995, at 1823, an mbb BO-105 helicopter owned by petroleum helicopters, inc., departed for a scene call. Smoke began filling the cabin after the pilot turned on the environmental control unit (ecu). The ecu was turned off and the cabin cleared. This occurred on a passenger/cargo flight. Visual flight rules (VFR) conditions prevailed, and a VFR flight plan was filed. There was no damage to aircraft or injury to personnel. The pilot holds a commercial pilot certificate. The flight originated at granite reef heliport on August 24, 1995, at 1823.
As the FAA filed it
NARRATIVE: ON AUGUST 24, 1995, AT 1823, AN MBB BO-105 HELICOPTER OWNED BY PETROLEUM HELICOPTERS, INC., DEPARTED FOR A SCENE CALL. SMOKE BEGAN FILLING THE CABIN AFTER THE PILOT TURNED ON THE ENVIRONMENTAL CONTROL UNIT (ECU). THE ECU WAS TURNED OFF AND THE CABIN CLEARED. THIS OCCURRED ON A PASSENGER/CARGO FLIGHT. VISUAL FLIGHT RULES (VFR) CONDITIONS PREVAILED, AND A VFR FLIGHT PLAN WAS FILED. THERE WAS NO DAMAGE TO AIRCRAFT OR INJURY TO PERSONNEL. THE PILOT HOLDS A COMMERCIAL PILOT CERTIFICATE. THE FLIGHT ORIGINATED AT GRANITE REEF HELIPORT ON AUGUST 24, 1995, AT 1823.