National Transportation Safety Board
Aviation Accident Factual Report

 

 

Location:

Minot, ND

Accident Number:

CEN20LA068

Date & Time:

01/22/2020, 1332 CST

Registration:

N947LH

Aircraft:

Bell 407

Aircraft Damage:

Substantial

Defining Event:

Collision during takeoff/land

Injuries:

1 None

Flight Conducted Under:

Part 91: General Aviation - Positioning - Air Medical (Unspecified)

 

On January 22, 2019, about 1332 central standard time, a Bell 407 helicopter, N947LH, impacted a helipad perimeter fence during a landing near Minot, North Dakota. The pilot, sole occupant was not injured, and the helicopter sustained substantial damage. The helicopter was registered to and operated by Executive Air Taxi Corp under the provisions of Title 14 Code of Federal Regulations Part 91 as a positioning flight. Day visual meteorological conditions prevailed for the flight.

The pilot conducted a flight to the Trinity Medical Helipad (2ND4) to pick up the medical crew. The pilot stated he performed a right 180° circling approach to the helipad. As he finished the turn, he thought he was a little low on final approach and "pulled in a little collective." He applied more collective as he was leveling off and the "helicopter contacted the pad firmly." The pilot added that it was firmer than a normal landing, but he thought everything was okay until he noticed a small vibration.

Before departing with the medical crew, the pilot still felt the vibration in the helicopter, so he shut the helicopter down to check. After shutdown, the crew walked toward the tail and noticed a slight bend in the lower vertical fin, the tips of both tail rotor blades missing, and the helipad safety fence was missing a small section of the fence-edge pipe.

Additional examination of the helicopter identified cracks in the tailboom structure.

A review of security camera video of the helipad showed the helicopter's tail rotor impact with the edge-fencing.

 

 

 

Pilot Information

Certificate:

Airline Transport

Age:

60

Airplane Rating(s):

None

Seat Occupied:

Right

Other Aircraft Rating(s):

Helicopter

Restraint Used:

 

Instrument Rating(s):

Helicopter

Second Pilot Present:

No

Instructor Rating(s):

Helicopter; Instrument Helicopter

Toxicology Performed:

No

Medical Certification:

Class 2 Without Waivers/Limitations

Last FAA Medical Exam:

12/10/2019

Occupational Pilot:

Yes

Last Flight Review or Equivalent:

07/18/2019

Flight Time:

6340.8 hours (Total, all aircraft), 98.1 hours (Total, this make and model)

 

 

Aircraft and Owner/Operator Information

Aircraft Make:

Bell

Registration:

N947LH

Model/Series:

407 No Series

Aircraft Category:

Helicopter

Year of Manufacture:

2001

Amateur Built:

No

Airworthiness Certificate:

Normal

Serial Number:

53509

Landing Gear Type:

Skid;

Seats:

 

Date/Type of Last Inspection:

12/26/2019, Continuous Airworthiness

Certified Max Gross Wt.:

5501 lbs

Time Since Last Inspection:

 

Engines:

1 Turbo Shaft

Airframe Total Time:

7601.9 Hours at time of accident

Engine Manufacturer:

Allison

ELT:

C126 installed, not activated

Engine Model/Series:

250-C47

Registered Owner:

Executive Air Taxi Corp

Rated Power:

650 hp

Operator:

Executive Air Taxi Corp

Operating Certificate(s) Held:

On-demand Air Taxi (135)

 

Meteorological Information and Flight Plan

Conditions at Accident Site:

Visual Conditions

Condition of Light:

Day

Observation Facility, Elevation:

KMOT

Distance from Accident Site:

2 Nautical Miles

Observation Time:

1354 CST

Direction from Accident Site:

45°

Lowest Cloud Condition:

Clear

Visibility

10 Miles

Lowest Ceiling:

 

Visibility (RVR):

 

Wind Speed/Gusts:

6 knots /

Turbulence Type Forecast/Actual:

/

Wind Direction:

300°

Turbulence Severity Forecast/Actual:

/

Altimeter Setting:

29.78 inches Hg

Temperature/Dew Point:

-2°C / -6°C

Precipitation and Obscuration:

No Precipitation

Departure Point:

Minot, ND (KMOT)

Type of Flight Plan Filed:

Company VFR

Destination:

Minot, ND (2ND4)

Type of Clearance:

VFR

Departure Time:

1315 CST

Type of Airspace:

 

 

Airport Information

Airport:

Trinity Health (2ND4)

Runway Surface Type:

N/A

Airport Elevation:

1692 ft

Runway Surface Condition:

Dry

Runway Used:

N/A

IFR Approach:

None

Runway Length/Width:

 

VFR Approach/Landing:

None

 

Wreckage and Impact Information

Crew Injuries:

1 None

Aircraft Damage:

Substantial

Passenger Injuries:

N/A

Aircraft Fire:

None

Ground Injuries:

N/A

Aircraft Explosion:

None

Total Injuries:

1 None

Latitude, Longitude:

48.232222, -101.293333

 


Administrative Information

Investigator In Charge (IIC):

Craig Hatch

Additional Participating Persons:

Brent Allen; FAA FSDO; Fargo, ND

Note:

The NTSB did not travel to the scene of this accident.

Investigation Docket:

http://dms.ntsb.gov/pubdms/search/dockList.cfm?mKey=100876