Aircraft Accident/Incident Report

Monroe, North Carolina 28112
Thursday, January 22, 2009 10:30 EST

NTSB Narrative Summary Released at Completion of Accident

During a flight to "simulate a mission" to examine power lines, the helicopter had been paralleling the west side of transmission lines. While resetting the global position system (GPS), the pilot-in-command (PIC) transferred controls to the pilot-rated-passenger. While the PIC was trying to reduce the sensitivity of the GPS warning system, the helicopter made a right turn of almost 260 degrees of heading change, allowing the helicopter to be on a perpendicular ground track and traveling directly toward the power lines. The helicopter collided with the topmost lines in the set, which were the grounding wires for the transmission line. The helicopter was observed by an eyewitness impacting the power line and descending to the ground. Examination of the wreckage revealed no evidence of any mechanical deficiencies. Several witnesses heard the helicopter and reported that it sounded normal prior to impacting the power lines. The main rotor blade was separated from the main wreckage. The pilot-rated-passenger had a history that he had not revealed to the Federal Aviation Administration of kidney stones, severe knee pain, and regular use of prescription pain medication. This pilot had seen an orthopedic surgeon the day before the accident for continuing knee pain, for which he had requested and received additional pain medication "to help him sleep." Toxicological testing was consistent with the recent use of the potentially impairing narcotic medication that had been prescribed the day before the accident. It is possible that the pilot-rated-passenger was impaired or distracted by knee pain, by the use of narcotic medication for that pain, or by fatigue due to insomnia from the knee pain; however, the investigation could not conclusively determine if impairment or distractions contributed to the accident.

NTSB Probable Cause Narrative

The pilot-rated-passenger’s failure to maintain clearance from a known wire hazard during low-level maneuvering. Contributing to the accident was the pilot-in-command’s inadequate monitoring of the flight.

Event Information

Type of Event Accident
Event Date 1/22/2009
Event Day of the Week Thursday
Time of Event 1030
Event Time Zone Eastern Standard Time
Event City Monroe
Event State NORTH CAROLINA
Event Country --
Zipcode of the event site 28112
Event Date Year 2009
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 345839N
Event Location Longitude 0803353W
Event Location Airport --
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 1053 Eastern Standard Time
Direction of event from weather observation facility (degrees) 316
Weather Observation Facility ID EQY
Elevation of weather observation facility 679
Distance of event from weather observation facility (units?) 4
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
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) 2
Dew Point at event time (in degress fahrenheit) -8
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.17
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 26794
NTSB Notification Source FAA Southern Region ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 15 2010 1:35PM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4191A
NTSB Number ERA09LA139
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
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 OH-6A
Aircraft Series Identifier --
Aircraft Serial Number 65-12965
Certified Max Gross Weight 2550
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 26 2008 12:00AM
Airframe hours since last inspection --
Airframe Hours 5661
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Charlotte Helicopters Flight Academy, Inc
Aircraft Owner Street Address --
Aircraft Owner City Charlotte
Aircraft Owner State NC
Aircraft Owner Country USA
Aircraft Owner Zipcode 28271
Operator is an individual? No
Operator Name Charlotte Helicopters Flight Academy, Inc
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Charlotte
Operator State NC
Operator Country USA
Operator Zip code 28271
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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) Other Work Use
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code EQY
Departure City Monroe
Departure State NC
Departure Country USA
Departure Time 1000
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code EQY
Destination City Monroe
Destination State NC
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 9 2010 3:22PM
User who most recently changed record kenj
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --