Sunday, June 16, 2019

Loss of Control on Ground: Cessna 180J, N9949N, accident occurred August 15, 2018 in Ambler, Alaska

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

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Ambler, AK
Accident Number: GAA18CA492
Date & Time: 08/15/2018, 1200 AKD
Registration: N9949N
Aircraft: Cessna 180
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 2 None
Flight Conducted Under: Part 135: Air Taxi & Commuter - Non-scheduled - Sightseeing

The pilot in the tailwheel-equipped airplane reported that he landed on a sloping and uneven sand bar. The area selected for the landing roll increased in elevation. During the landing roll the nose pivoted to the right, and the left wing and horizontal stabilizer struck the ground.

The left wing spar, the left aileron, and the left side of the vertical stabilizer and elevator sustained substantial damage.

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

Pilot Information

Certificate: Airline Transport; Commercial
Age: 58, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 3-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: Yes
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 04/10/2018
Occupational Pilot: Yes
Last Flight Review or Equivalent: 06/21/2018
Flight Time:  (Estimated) 5573 hours (Total, all aircraft), 1565 hours (Total, this make and model), 5474 hours (Pilot In Command, all aircraft), 238 hours (Last 90 days, all aircraft), 1 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Cessna
Registration: N9949N
Model/Series: 180 J
Aircraft Category: Airplane
Year of Manufacture: 1975
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18052604
Landing Gear Type: Tailwheel
Seats: 4
Date/Type of Last Inspection:  100 Hour
Certified Max Gross Wt.: 3190 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: Continental
ELT: Installed, not activated
Engine Model/Series: O-470
Registered Owner: Fox, Heather J.
Rated Power:
Operator:  Birchwood Aircraft Services LLC
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: PAFM, 289 ft msl
Distance from Accident Site: 25 Nautical Miles
Observation Time: 1956 UTC
Direction from Accident Site: 83°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: Light and Variable /
Turbulence Type Forecast/Actual: /
Wind Direction: Variable
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 29.92 inches Hg
Temperature/Dew Point: 9°C / -1°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Bettles, AK (BTT)
Type of Flight Plan Filed: Company VFR
Destination: Bettles, AK (BTT)
Type of Clearance: None
Departure Time: 0915 AKD
Type of Airspace: Class E 

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:  67.050000, -158.910000 (est)

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