Friday, April 26, 2019

Dynamic Rollover: Safari 400, N104CV; accident occurred April 10, 2019 in Gallatin, Sumner County, Tennessee

View of Helicopter as Found 
 Federal Aviation Administration 

View of Cockpit Area 
 Federal Aviation Administration 

View of Wreckage facing South 
Federal Aviation Administration

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Nashville, Tennessee

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket  - National Transportation Safety Board:

Location: Gallatin, TN
Accident Number: ERA19CA147
Date & Time: 04/10/2019, 1150 CDT
Registration: N104CV
Aircraft: GASKINS SAFARI 400
Aircraft Damage: Substantial
Defining Event: Dynamic rollover
Injuries: 2 Minor
Flight Conducted Under: Part 91: General Aviation - Personal

The pilot/owner stated that the helicopter was at or near its maximum allowable gross weight and required maximum engine power to hover in ground effect. After a brief local flight, the pilot completed an approach to the parallel taxiway beyond the parking area. Instead of performing a 180°pedal turn over the pavement to reverse course, the pilot initiated a teardrop-shaped turn. The helicopter turned to the right below effective translational lift (ETL) airspeed, the terrain sloped away from beneath the helicopter and once in an out-of-ground effect, higher power-demand condition, the engine could not produce the necessary power to maintain full operating rpm. The helicopter then descended below the height of the taxiway, the pilot attempted to perform a landing to rough, sloping terrain, and the helicopter rolled over and came to rest on its side. Following the accident, the pilot stated that during the accident the helicopter was performing "beautifully." He provided a comprehensive review of the events and suggested that better preflight and inflight performance planning, and inflight power management would have prevented the accident. 

Pilot Information

Certificate: Private
Age: 61, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present:No 
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 05/07/2018
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time:  2200 hours (Total, all aircraft), 160 hours (Total, this make and model)

Aircraft and Owner/Operator Information

Aircraft Make: GASKINS
Registration: N104CV
Model/Series: SAFARI 400 No Series
Aircraft Category: Helicopter
Year of Manufacture:
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: CH1503
Landing Gear Type: Skid
Seats: 2
Date/Type of Last Inspection: 04/18/2018, Condition
Certified Max Gross Wt.: 1650 lbs
Time Since Last Inspection: 75 Hours
Engines: 1 Reciprocating
Airframe Total Time: 211 Hours at time of accident
Engine Manufacturer: Superior
Engine Model/Series: XP-O-360-A3HY
Registered Owner: On file
Rated Power: 180 hp
Operator:On file 
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KXNX
Distance from Accident Site:
Observation Time: 1535 UTC
Direction from Accident Site:
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 8 knots /
Turbulence Type Forecast/Actual: 
Wind Direction: 120°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 29.93 inches Hg
Temperature/Dew Point: 22°C / 3°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Gallatin, TN (XNX)
Type of Flight Plan Filed: None
Destination: Gallatin, TN (XNX)
Type of Clearance: None
Departure Time:  CDT
Type of Airspace: Class G

Airport Information

Airport: Sumner County Rgnl (XNX)
Runway Surface Type: Asphalt
Airport Elevation: 583 ft
Runway Surface Condition: Dry
Runway Used: 17
IFR Approach: None
Runway Length/Width: 6300 ft / 100 ft
VFR Approach/Landing: Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: 1 Minor
Aircraft Fire:None
Ground Injuries:N/A
Aircraft Explosion:None
Total Injuries: 2 Minor
Latitude, Longitude: 36.375000, -86.408333 (est)

No comments:

Post a Comment