Bell 47 Safety Record

Complete NTSB accident and incident history. 744 events recorded from 1982 to 2026.

744

All Events

391

Incidents

169

Minor

96

Serious

84

Fatal (106 fatalities)

Date Location Reg# Severity Damage Probable Cause
Aug 02, 2011 Charles City, IA N4771N Serious (1) substantial The pilot's failure to refuel the helicopter which resulted in a loss of engine power due to fuel exhaustion.
Jul 31, 2011 Porterville, CA N6260C Incident substantial The pilot's decision to takeoff in a tailwind condition, and his subsequent failure to attain sufficient lift during the takeoff.
Jul 27, 2011 Nicolett, MN N7578 Incident substantial The pilot's failure to maintain control of the helicopter while maneuvering during an aerial application flight.
Jul 20, 2011 Watsonville, CA N1375X Incident substantial The pilot's failure to maintain clearance from a pole while maneuvering during an aerial application flight.
Jun 18, 2011 Montgomery City, MO N24HM Incident substantial
A loss of control during the precautionary landing, which resulted in inadvertent contact between the main rotor and the tailboom. Contributing to the…

A loss of control during the precautionary landing, which resulted in inadvertent contact between the main rotor and the tailboom. Contributing to the accident was the overloaded condition.

May 25, 2011 Lakeville, MN N96SH Serious (1) substantial The loss of engine power due to a loose B-nut on the compressor discharge pressure bleed line.
Apr 06, 2011 Torrance, CA N9FK Minor substantial The pilot did not maintain adequate altitude during takeoff, which resulted in ground contact and a dynamic rollover.
Sep 26, 2010 Gaston, OR N7860S Incident substantial The pilot's failure to maintain tail rotor clearance while landing on a transport trailer positioned on an uneven surface.
Sep 03, 2010 Salinas, CA N4427F Serious (1) substantial
The pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter …

The pilot's visual flight rules flight into instrument meteorological conditions, which resulted in his spatial disorientation and loss of helicopter control.

Jul 24, 2010 Rochester, MN N124SH Fatal (1) substantial
The total loss of engine power due to a high-cycle fatigue fracture of a first-stage compressor blade. The reason for the fracture could not be determ…

The total loss of engine power due to a high-cycle fatigue fracture of a first-stage compressor blade. The reason for the fracture could not be determined during postaccident examination.

Jun 13, 2010 Plymouth, MI N47WK Incident substantial The pilot's failure to use carburetor heat, which led to carburetor icing and a loss of engine power following takeoff.
Jun 08, 2010 Shaw Island, WA N7069J Incident substantial The passenger's inadvertent movement of the mixture control during climb, resulting in a loss of engine power.
Jan 22, 2010 Shafter, CA N28938 Minor substantial
The loss of a main rotor blade counterweight due to corrosion. Contributing to the accident was the failure of the operator to perform the initial and…

The loss of a main rotor blade counterweight due to corrosion. Contributing to the accident was the failure of the operator to perform the initial and recurrent inspections required by a Service Bulletin to detect the corrosion in the counterweight.

Oct 02, 2009 Dorrance, PA N74004 Incident substantial A total loss of engine power due to fuel exhaustion for undetermined reasons.
Aug 11, 2009 Covert, MI N9526 Incident substantial A loss of engine power due to fuel starvation as a result of blocked fuel vents.
Jul 08, 2009 Turlock, CA N6768D Incident substantial The pilot's failure to maintain rotor RPM while maneuvering at a low altitude.
Jul 07, 2009 Ocean Shores, WA N8169J Minor substantial The pilot's failure to maintain clearance from the water while maneuvering due to the pilot's diverted attention.
Jun 05, 2009 San Marcos, TX N8420E Serious (1) substantial The pilot's failure to maintain clearance from power lines.
May 30, 2009 Kyle, TX N4823 Serious (1) substantial
The ground crewmember's failure to assure that the fuel nozzle was closed before pressurizing the line. Contributing to the accident was the lack of a…

The ground crewmember's failure to assure that the fuel nozzle was closed before pressurizing the line. Contributing to the accident was the lack of an available fire extinguisher.

Oct 11, 2008 Florence, AZ N8567F Incident substantial
The pilot’s inadequate compensation for a wind shift encountered during the landing approach, which resulted in a hard landing and rollover. Contribu…

The pilot’s inadequate compensation for a wind shift encountered during the landing approach, which resulted in a hard landing and rollover. Contributing to the accident was the encounter with the wind shift.

Aug 14, 2008 Kenyon, MN N47AH Incident substantial The pilot's inadequate preflight planning which resulted in the helicopter settling with power.
Jul 24, 2008 Mayville, WI N24HM Fatal (1) minor The pilot's failure to maintain clearance with the rotating rotor blades after he exited the helicopter after landing.
Jul 24, 2008 Lafetyette, IN N4029G Incident substantial
The loss of engine power during an aerial application flight due to a fatigue fracture of the carburetor heat control valve spring and the inadequate …

The loss of engine power during an aerial application flight due to a fatigue fracture of the carburetor heat control valve spring and the inadequate maintenance inspection by the pilot/mechanic. An additional cause was the low altitude of the operation.

Jul 15, 2008 Shafter, CA N1390X Incident substantial
The pilot's failure to maintain adequate altitude while maneuvering. Contributing factors were the failure of the helicopter's lights during the night…

The pilot's failure to maintain adequate altitude while maneuvering. Contributing factors were the failure of the helicopter's lights during the night flight and the effect of that failure on the pilot's visual perception.

Jul 11, 2008 Port Edwards, WI N73995 Minor substantial
The pilot failed to maintain control of the helicopter when he inadvertently flared the helicopter and the rotor rpm decayed as a result of sustaining…

The pilot failed to maintain control of the helicopter when he inadvertently flared the helicopter and the rotor rpm decayed as a result of sustaining bee stings during an aerial application flight. Contributing to the accidnet included the bees and the low altitude.

Disclaimer: This data is sourced from the NTSB Aviation Accident Database. NTSB events reflect reported accidents and incidents and do not necessarily indicate a defect in the aircraft type. Many events involve pilot error, weather conditions, maintenance issues, or other factors unrelated to the aircraft design. This information is provided for research purposes only — consult official NTSB reports for complete details.
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