HUGHES 369 near Franklin, PA — 2009-07-22
- Date
- 2009-07-22
- Location
- Franklin, PA, USA
- Aircraft
- HUGHES 369
- Registration
- N61735
- Category
- Helicopter
- Highest injury
- Fatal
- Fatalities
- 1
- Phase of flight
- Descent
Probable cause
A loss of engine power due to fuel exhaustion as a result of the pilot's fuel mismanagement.
NTSB narrative
The helicopter was proceeding to a nearby landing location with an external load of seismic monitoring equipment. Several individuals on the ground heard the pilot talking on their communication frequency. Most of the communication was inaudible; however, several witnesses heard the pilot say that he was "going into the tree[s]." The helicopter was located in an open area near the edge of a tree line. The wreckage was confined within the immediate crash area, except for the external load; which was located 281 feet away in the wooded area. The helicopter had come to rest upright. The main rotor and tail rotor blades exhibited little damage to the leading edges. Approximately three drops of fuel was located throughout the helicopter's fuel system, and no fuel was located in or around the helicopter. No evidence of precrash mechanical failure of the helicopter structure, flight controls, systems, or engine were found.
Analysis
- Primary failure mode
- Fuel management
- First missed decision gate
- Pilot could have chosen to land with more fuel before attempting the flight.
NTSB coding
Evidence available
- Photos
- 21 docket documents
Docket documents21
- Helicopter Operator Information (NTSB Report Supplement)form
- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (Owner)form
- Release of Aircraft Wreckage, NTSB Form 6120.15form
- Statement of Party Representatives to NTSB Investigationinterview
- Airframe Maintenance Logbooks [Excerpts]other
- Engine Maintenance Logbook [Excerpt]other
- Fuel Consumption Chartother
- Fuel Control Unit and Power Turbine Governor Testother
- GPS Graphic Readoutother
- Garrett County Airport Weatherother
- Memorandum For Record: GeoKinetics(Contract Company) Personnelother
- Memorandum For Record: Mr. Paul Mavrinacother
- Memorandum For Record: Mrs. Crouseother
- Pennsylvania Mechanic Entries During Julyother
- Position Logsother
- Photo 1: Helicopter Left Side As It Came To Restphotos
- Photo 2: Helicopter Right Side As It Came To Restphotos
- Photo 3: Main Fuel Tankphotos
- Materials Laboratory 15 - Factual Report 09-096report
- Reports from Federal Agenciesreport
- Toxicological Reportreport
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