What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) On may 4, 2005 approximately 1430 CDT, a Bell 206 single engine helicopter, N9877Z, sustained substantial damage when the pilot executed a forced landing. VMC prevailed for the survey flight and a flight plan was not filed. The pilot reported that he felt a shudder and vibration followed by an uncommanded yaw. He entered an autorotation. Neither the pilot nor the five passengers were injured. Later investigation of the aircraft did not turn up evidence of component failure.
As the FAA filed it
(-23) ON MAY 4, 2005 APPROXIMATELY 1430 CDT, A BELL 206 SINGLE ENGINE HELICOPTER, N9877Z, SUSTAINED SUBSTANTIAL DAMAGE WHEN THE PILOT EXECUTED A FORCED LANDING. VMC PREVAILED FOR THE SURVEY FLIGHT AND A FLIGHT PLAN WAS NOT FILED. THE PILOT REPORTED THAT HE FELT A SHUDDER AND VIBRATION FOLLOWED BY AN UNCOMMANDED YAW. HE ENTERED AN AUTOROTATION. NEITHER THE PILOT NOR THE FIVE PASSENGERS WERE INJURED. LATER INVESTIGATION OF THE AIRCRAFT DID NOT TURN UP EVIDENCE OF COMPONENT FAILURE.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.