Tuesday, September 5, 2017

Cessna 180H, N8249V: Accident occurred September 04, 2017 in Noatak River, Alaska

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

Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

Location: Ambler, AK
Accident Number:  GAA17CA521
Date & Time: 09/04/2017, 1600 AKD
Registration: N8249V
Aircraft: CESSNA 180
Aircraft Damage: Substantial
Defining Event: Landing area undershoot
Injuries: 2 None
Flight Conducted Under:  Part 91: General Aviation - Personal

Analysis

The pilot of the tailwheel-equipped airplane reported that, during landing on an off-airport gravel bar, the airplane touched down about 30 ft short of the intended landing area. Subsequently, the right wheel struck a large rock, the gear collapsed, and the left wing impacted the ground.

The airplane sustained substantial damage to the fuselage and left wing.

The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane 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 pilot's failure to maintain an appropriate glidepath to an off-airport landing site.

Findings

Aircraft
Descent/approach/glide path - Not attained/maintained (Cause)

Personnel issues
Aircraft control - Pilot (Cause)
Environmental issues

Factual Information

History of Flight

Landing
Landing area undershoot (Defining event)
Collision with terr/obj (non-CFIT)
  
Pilot Information

Certificate: Commercial
Age: 77, 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: No
Medical Certification: Class 2 With Waivers/Limitations
Last FAA Medical Exam: 06/08/2017
Occupational Pilot: No
Last Flight Review or Equivalent:  06/23/2017
Flight Time:  (Estimated) 4500 hours (Total, all aircraft), 1800 hours (Total, this make and model), 4500 hours (Pilot In Command, all aircraft), 20 hours (Last 90 days, all aircraft), 17 hours (Last 30 days, all aircraft), 6 hours (Last 24 hours, all aircraft)
  
Aircraft and Owner/Operator Information

Aircraft Manufacturer: CESSNA
Registration: N8249V
Model/Series: 180 H
Aircraft Category: Airplane
Year of Manufacture: 1966
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18051751
Landing Gear Type: Tailwheel
Seats: 4
Date/Type of Last Inspection: 05/08/2017, Annual
Certified Max Gross Wt.: 2800 lbs
Time Since Last Inspection: 
Engines: 1 Reciprocating
Airframe Total Time: 4215.81 Hours at time of accident
Engine Manufacturer: CONT MOTOR
ELT: C91A installed, not activated
Engine Model/Series: O-470 SERIES
Registered Owner: On file
Rated Power: 230 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: PAFM, 289 ft msl
Observation Time: 2356 UTC
Distance from Accident Site: 51 Nautical Miles
Direction from Accident Site: 205°
Lowest Cloud Condition: 
Temperature/Dew Point: 15°C / 3°C
Lowest Ceiling: Broken / 6000 ft agl
Visibility:  10 Miles
Wind Speed/Gusts, Direction: 10 knots/ 15 knots, 130°
Visibility (RVR): 
Altimeter Setting: 29.75 inches Hg
Visibility (RVV): 
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: KOBUK, AK (OBU)
Type of Flight Plan Filed: None
Destination: Ambler, AK
Type of Clearance: None
Departure Time: 1445 AKD
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:  67.874444, -156.931667 (est)

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

Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf
  
http://registry.faa.gov/N8249V

NTSB Identification: GAA17CA521
14 CFR Part 91: General Aviation
Accident occurred Monday, September 04, 2017 in Ambler, AK
Aircraft: CESSNA 180, registration: N8249V
Injuries: 2 Uninjured.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot of the tailwheel-equipped airplane reported that, during landing on an off-airport gravel bar, the airplane touched down about 30 ft. short of the intended landing area. Subsequently, the right wheel struck a large rock, the gear collapsed, and the left wing impacted the ground.

The airplane sustained substantial damage to the fuselage and left wing.

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

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