Friday, February 21, 2020

Abnormal Runway Contact: Aerospatiale AS-350B-2 Ecureuil, N188FS; accident occurred February 18, 2020 at Tampa Executive Airport (KVDF), Hillsborough County, Florida

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Tampa, Florida

Aviation Accident Preliminary Report - National Transportation Safety Board: https://app.ntsb.gov/pdf

https://registry.faa.gov/N188FS 

Location: Tampa, FL
Accident Number: ERA20CA106
Date & Time: 02/18/2020, 1550 EST
Registration: N188FS
Aircraft: Aerospatiale AS350
Aircraft Damage: Substantial
Defining Event: Abnormal runway contact
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Instructional 

The flight instructor of the helicopter reported that, he directed the airplane rated pilot to conduct an autorotation with a 180° turn, followed with a power recovery. Abeam the departure end of runway, he moved the throttle lever from the FLY position to IDLE. While conducting the maneuver, the student pilot overshot the runway and aligned the helicopter with the parallel taxiway. Upon realizing the unacceptable position, they elected to abort the maneuver and perform a go-around. While the student pilot continued to fly the helicopter, the instructor inadvertently moved the throttle lever from IDLE, aft, towards the OFF position, then forward, to the FLY position. The engine experienced a total loss of power and the instructor adjusted the throttle to no avail. As the helicopter continued the descent, the student pilot requested that the instructor "get on the controls". The instructor left the throttle in the full power position, took the controls and conduct a power-off autorotation. The helicopter landed on the taxiway, skidded about 180 feet, departed the taxiway, onto the adjacent grass and came to rest in a drainage ditch.

The flight instructor reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.

The Federal Aviation Administrator inspector who examined the helicopter at the accident site reported damage to the left anti-vibrator mount beam.

Flight Instructor Information

Certificate: Airline Transport; Commercial
Age: 56, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
Instrument Rating(s): Airplane; Helicopter
Second Pilot Present: Yes
Instructor Rating(s): Helicopter
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 04/16/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/20/2019
Flight Time:   (Estimated) 12088 hours (Total, all aircraft), 1226 hours (Total, this make and model), 11023 hours (Pilot In Command, all aircraft), 49 hours (Last 90 days, all aircraft), 11 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft)

Student Pilot Information

Certificate: Private
Age: 32, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Right
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 07/22/2019
Occupational Pilot: Yes
Last Flight Review or Equivalent: 09/25/2009
Flight Time:   (Estimated) 225 hours (Total, all aircraft), 104 hours (Total, this make and model), 118 hours (Pilot In Command, all aircraft), 67 hours (Last 90 days, all aircraft), 23 hours (Last 30 days, all aircraft), 1 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Aerospatiale
Registration: N188FS
Model/Series: AS350 B2
Aircraft Category: Helicopter
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 7863
Landing Gear Type: High Skid
Seats: 6
Date/Type of Last Inspection: 10/09/2019, 100 Hour
Certified Max Gross Wt.: 4961 lbs
Time Since Last Inspection:
Engines: 1 Turbo Shaft
Airframe Total Time: 2627.3 Hours at time of accident
Engine Manufacturer: SAFRAN/Turbomeca
ELT: C126 installed, not activated
Engine Model/Series: Arriel 1D1
Registered Owner: Hillsborough County Sheriff's Office
Rated Power: 72195 hp
Operator: Hillsborough County Sheriff's Office
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: VDF, 22 ft msl
Distance from Accident Site: 0 Nautical Miles
Observation Time: 2115 UTC
Direction from Accident Site: 66°
Lowest Cloud Condition:
Visibility:  10 Miles
Lowest Ceiling: Overcast / 4900 ft agl
Visibility (RVR):
Wind Speed/Gusts: 5 knots / 14 knots
Turbulence Type Forecast/Actual: None / None
Wind Direction: 160°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.09 inches Hg
Temperature/Dew Point: 29°C / 19°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Tampa, FL (TPF)
Type of Flight Plan Filed: None
Destination: Tampa, FL (VDF)
Type of Clearance: None
Departure Time: 1545 EST
Type of Airspace: Class G

Airport Information

Airport: Tampa Executive (VDF)
Runway Surface Type: Asphalt
Airport Elevation: 21 ft
Runway Surface Condition: Dry
Runway Used: 18
IFR Approach: None
Runway Length/Width: 3219 ft / 75 ft
VFR Approach/Landing: Forced Landing; Simulated Forced Landing

Wreckage and Impact Information

Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude: 28.013889, -82.345278 (est)

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