Federal Aviation Administration / Flight Standards District Office; Baton Rouge, Louisiana
Sikorsky; Coatesville, Pennsylvania
Aviation Accident Final Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms
http://registry.faa.gov/N860AL
Location: New Iberia, LA
Accident Number: GAA18CA138
Date & Time: 02/18/2018, 0915 CST
Registration: N860AL
Aircraft: SIKORSKY S76
Aircraft Damage: Substantial
Defining Event: Miscellaneous/other
Injuries: 5 None
Flight Conducted Under: Part 135: Air Taxi Commuter - Non-scheduled
Analysis
The pilot reported that while the co-pilot was taxiing the wheel-equipped helicopter to the runway for departure, he saw a "bump" on the concrete. The co-pilot reported that he attempted to stop before the "bump", which turned out to be a pothole, but the helicopter struck the pothole with the right main landing gear, which collapsed. The pilot and the co-pilot both reported that the taxi speed was less than 5 knots.
The helicopter sustained substantial damage to the internal fuselage structure.
The Director of Operations reported that there were no preaccident mechanical failures or malfunctions with the helicopter that would have precluded normal operation.
Probable Cause and Findings
The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The helicopter's striking of a pothole while taxiing, which resulted in the right main landing gear collapsing.
Findings
Environmental issues
Factual Information
History of Flight
Taxi-into takeoff position
Landing gear collapse (Defining event)
Certificate: Airline Transport
Age: 51, Male
Airplane Rating(s): None
Seat Occupied: Left
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
Instrument Rating(s): Helicopter
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 12/17/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 12/23/2017
Flight Time: (Estimated) 9674 hours (Total, all aircraft), 3866 hours (Total, this make and model), 6895 hours (Pilot In Command, all aircraft), 68 hours (Last 90 days, all aircraft), 14 hours (Last 30 days, all aircraft)
Co-Pilot Information
Certificate: Airline Transport
Age: 50, Male
Airplane Rating(s): None
Seat Occupied: Right
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
Instrument Rating(s): Helicopter
Second Pilot Present: Yes
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 03/01/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 01/27/2018
Flight Time: (Estimated) 7277 hours (Total, all aircraft), 209 hours (Total, this make and model), 6284 hours (Pilot In Command, all aircraft), 103 hours (Last 90 days, all aircraft), 31 hours (Last 30 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Manufacturer: SIKORSKY
Registration: N860AL
Model/Series: S76 C
Aircraft Category: Helicopter
Year of Manufacture: 2002
Amateur Built: No
Airworthiness Certificate: Transport
Serial Number: 760527
Landing Gear Type: Retractable -
Seats: 14
Date/Type of Last Inspection: 02/04/2018, Unknown
Certified Max Gross Wt.: 11700 lbs
Time Since Last Inspection:
Engines: 2 Turbo Shaft
Airframe Total Time: 9866 Hours
Engine Manufacturer: SAFRAN
ELT: C91A installed, not activated
Engine Model/Series: Arriel 2S1
Registered Owner: HELIFLEET 2013-01 LLC
Rated Power: 794 hp
Operator: Bristow US LLC
Operating Certificate(s) Held: Rotorcraft External Load (133); On-demand Air Taxi (135)
Meteorological Information and Flight Plan
Conditions at Accident Site: Instrument Conditions
Condition of Light: Day
Observation Facility, Elevation: KARA, 26 ft msl
Observation Time: 1527 UTC
Distance from Accident Site: 0 Nautical Miles
Direction from Accident Site: 195°
Lowest Cloud Condition:
Temperature/Dew Point: 18°C / 17°C
Lowest Ceiling: Overcast / 300 ft agl
Visibility: 4 Miles
Wind Speed/Gusts, Direction: 7 knots, 120°
Visibility (RVR):
Altimeter Setting: 30.21 inches Hg
Visibility (RVV):
Precipitation and Obscuration: Moderate - Mist
Departure Point: New Iberia, LA (ARA)
Type of Flight Plan Filed: IFR
Destination:
Type of Clearance: IFR
Departure Time: CST
Type of Airspace: Class D
Airport Information
Airport: ACADIANA RGNL (ARA)
Runway Surface Type: Concrete
Airport Elevation: 24 ft
Runway Surface Condition: Dry; Holes
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: None
Wreckage and Impact Information
Crew Injuries: 2 None
Aircraft Damage: Substantial
Passenger Injuries: 3 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 5 None
Latitude, Longitude: 30.037222, -91.881667 (est)
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