N/A Airport
Aircraft Accident/Incident Report

Center Point, West Virginia 26348
Monday, July 29, 2013 11:40 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that, after trimming the top portion of a tree during helicopter tree-trimming operations, the engine experienced a gradual loss of power. The rotor rpm then began to decrease, and the “engine out” alarm illuminated and sounded. The pilot maneuvered to avoid power lines; however, during the descent, the rotor blades struck a power line pole, and the helicopter impacted the ground, which resulted in substantial damage to all five main rotor blades and the left landing skid. Postaccident examination of the engine and airframe and the air, fuel, and oil systems revealed no anomalies that could have contributed to the loss of power.

NTSB Probable Cause Narrative

A total loss of engine power for reasons that could not be determined because postaccident examination of the airframe and engine did not reveal any anomalies that would have precluded normal operation.

Event Information

Type of Event Accident
Event Date 7/29/2013
Event Day of the Week Monday
Time of Event 1140
Event Time Zone Eastern Daylight Time
Event City Center Point
Event State WEST VIRGINIA
Event Country --
Zipcode of the event site 26348
Event Date Year 2013
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 392706N
Event Location Longitude 0803409W
Event Location Airport N/A
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1153 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 190
Weather Observation Facility ID KCKB
Elevation of weather observation facility 1223
Distance of event from weather observation facility (units?) 32
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3900
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 21
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 5
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.15
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report 29/07/2013 15:53-> METAR KCKB 291553Z VRB05KT 10SM
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 32882
NTSB Notification Source FAA Eastern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 6 2014 3:13PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N31HM
NTSB Number ERA13LA344
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 369D
Aircraft Series Identifier --
Aircraft Serial Number 1160027D
Certified Max Gross Weight 3000
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jul 24 2013 12:00AM
Airframe hours since last inspection 29
Airframe Hours 10446
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name DAH AIRCRAFT LLC
Aircraft Owner Street Address --
Aircraft Owner City LEWES
Aircraft Owner State DE
Aircraft Owner Country USA
Aircraft Owner Zipcode 19958-3608
Operator is an individual? No
Operator Name DAH AIRCRAFT LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Lewes
Operator State DE
Operator Country USA
Operator Zip code 19958
Operator Code --
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) External Load
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code --
Departure City Center Point
Departure State WV
Departure Country USA
Departure Time 1120
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City Center Point
Destination State WV
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 6 2014 3:13PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --