Friday, August 18, 2017

Piper PA-18A 150 Super Cub, N7678D: Accident occurred August 17, 2017 in Tyonek, Alaska

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

Location: Tyonek, AK
Accident Number: GAA17CA501
Date & Time: 08/17/2017, 1200 AKD
Registration: N7678D
Aircraft: PIPER PA18
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal

Analysis

The pilot of the tailwheel-equipped airplane reported that, during an off-airport landing on wet, marsh vegetation, he used "excessive braking," and the airplane nosed over.

The airplane sustained substantial damage to the left wing lift struts and rudder.

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 use of excessive braking during the landing roll, which resulted in a nose-over. 

Findings

Aircraft
Surface speed/braking - Capability exceeded (Cause)

Personnel issues
Aircraft control - Pilot (Cause)

Environmental issues
Wet/muddy terrain - Effect on operation

Factual Information

History of Flight

Landing
Loss of control on ground (Defining event)
Nose over/nose down 

Pilot Information

Certificate: Private
Age: 68, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: Unknown
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 10/18/2016
Occupational Pilot: No
Last Flight Review or Equivalent: 
Flight Time: (Estimated) 2000 hours (Total, all aircraft), 500 hours (Total, this make and model), 2000 hours (Pilot In Command, all aircraft), 35 hours (Last 90 days, all aircraft), 10 hours (Last 30 days, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Manufacturer: PIPER
Registration: N7678D
Model/Series: PA18 A150
Aircraft Category: Airplane
Year of Manufacture: 1957
Amateur Built: No
Airworthiness Certificate: Restricted
Serial Number: 18-5900
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 06/12/2017, Annual
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection: 
Engines: 1 Reciprocating
Airframe Total Time: 6761 Hours as of last inspection
Engine Manufacturer: LYCOMING
ELT: C91A installed, activated, aided in locating accident
Engine Model/Series: O-320-B2B
Registered Owner: On file
Rated Power: 160 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: PAEN, 92 ft msl
Observation Time: 2053 UTC
Distance from Accident Site: 26 Nautical Miles
Direction from Accident Site: 152°
Lowest Cloud Condition: Few / 2100 ft agl
Temperature/Dew Point: 11°C / 8°C
Lowest Ceiling: Overcast / 4200 ft agl
Visibility:  10 Miles
Wind Speed/Gusts, Direction: 8 knots, 230°
Visibility (RVR): 
Altimeter Setting: 29.6 inches Hg
Visibility (RVV): 
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: ANCHORAGE, AK (LHD)
Type of Flight Plan Filed: None
Destination: Tyonek, AK
Type of Clearance: None
Departure Time: 1100 AKD
Type of Airspace: Class G
  
Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 60.956111, -151.638889

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/N7678Dk

NTSB Identification: GAA17CA501
14 CFR Part 91: General Aviation
Accident occurred Thursday, August 17, 2017 in Tyonek, AK
Aircraft: PIPER PA18, registration: N7678D
Injuries: 1 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 an off airport landing on wet, marsh vegetation, he used "excessive braking" and the airplane nosed over.

The airplane sustained substantial damage to the left wing lift struts and rudder.

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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