Sunday, December 2, 2018

Piper PA-18-150 Super Cub, registered to and operator does business as Alaska Dall Sheep Guides LLC, N6727A: Accident occurred August 20, 2018 in McGrath, Alaska

Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska

Aviation Accident Factual 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/N6727A


Location: McGrath, AK
Accident Number: GAA18CA504
Date & Time: 08/20/2018, 0830 AKD
Registration: N6727A
Aircraft: Piper PA18
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 2 None
Flight Conducted Under: Part 91: General Aviation - Business 

The pilot of the tailwheel-equipped airplane reported that, during takeoff on a gravel, dirt airstrip, a "rogue crosswind gust of wind" pushed the airplane to the right. The airplane struck a "bump", became airborne, continued drifting right, and landed hard in a creek.

The airplane sustained substantial damage to the fuselage.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

The pilot reported that the prevailing wind was light and variable and not gusting. The airplane was departing to the south. 

Pilot Information

Certificate: Airline Transport; Flight Instructor; Commercial; Flight Engineer
Age: 72, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 06/05/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 12/08/2017
Flight Time:  (Estimated) 21618 hours (Total, all aircraft), 4509 hours (Total, this make and model), 16853 hours (Pilot In Command, all aircraft), 81 hours (Last 90 days, all aircraft), 10 hours (Last 30 days, all aircraft), 1 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Piper
Registration: N6727A
Model/Series: PA18 150
Aircraft Category: Airplane
Year of Manufacture: 1981
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 18-8109031
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 04/19/2018, Annual
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 2621 Hours at time of accident
Engine Manufacturer: Lycoming
ELT: C91  installed, activated, aided in locating accident
Engine Model/Series: O-320-A2B
Registered Owner: Alaska Dall Sheep Guides, LLC
Rated Power: 160 hp
Operator: On file
Operating Certificate(s) Held: None
Operator Does Business As: Alaska Dall Sheep Guides, LLC.
Operator Designator Code:

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: PAFW, 1060 ft msl
Distance from Accident Site: 25 Nautical Miles
Observation Time: 1701 UTC
Direction from Accident Site: 230°
Lowest Cloud Condition: Few / 2000 ft agl
Visibility: 10 Miles
Lowest Ceiling: Overcast / 10000 ft agl
Visibility (RVR):
Wind Speed/Gusts: 3 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 360°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.03 inches Hg
Temperature/Dew Point: 12°C / 11°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: McGrath, AK
Type of Flight Plan Filed: None
Destination: Farewell, AK (0AA4)
Type of Clearance: None
Departure Time: 0830 ADT
Type of Airspace: Class G

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 1 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 2 None
Latitude, Longitude:  62.797500, -152.930833 (est)

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