This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed.
The National Transportation Safety Board did not travel to the scene of this accident.
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Anchorage, Alaska
Location: Rohn, Alaska
Accident Number: ANC21LA072
Date and Time: August 12, 2021, 15:45 Local
Registration: N4018E
Aircraft: Piper PA-18-150
Injuries: 1 None
Flight Conducted Under: Part 91: General aviation - Personal
Aircraft and Owner/Operator Information
Aircraft Make: Piper
Registration: N4018E
Model/Series: PA-18-150
Aircraft Category: Airplane
Amateur Built:
Operator: On file
Operating Certificate(s) Held: None
Operator Designator Code:
Meteorological Information and Flight Plan
Conditions at Accident Site:
Condition of Light:
Observation Facility, Elevation:
Observation Time:
Distance from Accident Site:
Temperature/Dew Point:
Lowest Cloud Condition:
Wind Speed/Gusts, Direction: / ,
Lowest Ceiling:
Visibility:
Altimeter Setting:
Type of Flight Plan Filed:
Departure Point:
Destination:
Wreckage and Impact Information
Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries:
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 62.293727,-153.37426
Additional Participating Entity:
Federal Aviation Administration / Flight Standards District Office; Juneau, Alaska
Investigation Docket - National Transportation Safety Board:
Location: Kenai, AK
Accident Number: GAA18CA303
Date & Time: 05/27/2018, 1300 AKD
Registration: N4018E
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 the landing roll, the airplane ground looped to the left.
The airplane sustained substantial damage to both wings and lift struts.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The automated weather observation station located about 5 miles north of the accident airport reported that, about 7 minutes before the accident, the wind was from 220° at 7 knots. The airplane landed on runway 36.
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 directional control during the landing roll with a tailwind.
Findings
Aircraft
Directional control - Not attained/maintained (Cause)
Personnel issues
Aircraft control - Pilot (Cause)
Environmental issues
Tailwind - Effect on operation
Crosswind - Effect on operation
Factual Information
History of Flight
Landing-landing roll
Loss of control on ground (Defining event)
Pilot Information
Certificate: Private
Age: 64, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used:
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: 03/02/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 04/14/2017
Flight Time: (Estimated) 600 hours (Total, all aircraft), 3 hours (Total, this make and model), 600 hours (Pilot In Command, all aircraft), 10 hours (Last 90 days, all aircraft), 4 hours (Last 30 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: PIPER
Registration: N4018E
Model/Series: PA18 150
Aircraft Category: Airplane
Year of Manufacture: 1977
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18-7809040
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: Unknown
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: LYCOMING
ELT: Installed
Engine Model/Series: O-320 SERIES
Registered Owner: WILLIAMS, MATTHEW S.
Rated Power: 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
Distance from Accident Site: 5 Nautical Miles
Observation Time: 2053 UTC
Direction from Accident Site: 359°
Lowest Cloud Condition: Scattered / 12000 ft agl
Visibility: 10 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 220°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.67 inches Hg
Temperature/Dew Point: 13°C / 4°C
Precipitation and Obscuration:
Departure Point: Anchorage, AK (LHD)
Type of Flight Plan Filed: None
Destination: Kenai, AK (0AA7)
Type of Clearance: None
Departure Time: 1200 AKD
Type of Airspace: Class G
Airport Information
Airport: KALIFONSKY MEADOWS (0AA7)
Runway Surface Type: Grass/turf
Airport Elevation: 65 ft
Runway Surface Condition: Dry
Runway Used: 36
IFR Approach: None
Runway Length/Width: 2539 ft / 100 ft
VFR Approach/Landing: Full Stop; Traffic Pattern
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: 60.490000, -151.235000 (est)
Location: Kenai, AK
Accident Number: GAA18CA303
Date & Time: 05/27/2018, 1300 AKD
Registration: N4018E
Aircraft: PIPER PA18
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal
The pilot the tailwheel-equipped airplane reported that, during the landing roll, the airplane ground looped to the left.
The airplane sustained substantial damage to both wings and lift struts.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The automated weather observation station located about 5 miles to the north of the accident airport reported that, about 7 minutes before the accident, the wind was from 220° at 7 knots. The airplane landed on runway 36.
Pilot Information
Certificate: Private
Age: 64, 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: 03/02/2017
Occupational Pilot: No
Last Flight Review or Equivalent: 04/14/2017
Flight Time: (Estimated) 600 hours (Total, all aircraft), 3 hours (Total, this make and model), 600 hours (Pilot In Command, all aircraft), 10 hours (Last 90 days, all aircraft), 4 hours (Last 30 days, all aircraft)
Aircraft and Owner/Operator Information
Aircraft Make: PIPER
Registration: N4018E
Model/Series: PA18 150
Aircraft Category: Airplane
Year of Manufacture: 1977
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: 18-7809040
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: Unknown
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time:
Engine Manufacturer: LYCOMING
ELT: Installed, not activated
Engine Model/Series: O-320 SERIES
Registered Owner: WILLIAMS, MATTHEW S.
Rated Power: 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
Distance from Accident Site: 5 Nautical Miles
Observation Time: 2053 UTC
Direction from Accident Site: 359°
Lowest Cloud Condition: Scattered / 12000 ft agl
Visibility: 10 Miles
Lowest Ceiling:
Visibility (RVR):
Wind Speed/Gusts: 7 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 220°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.67 inches Hg
Temperature/Dew Point: 13°C / 4°C
Precipitation and Obscuration:
Departure Point: Anchorage, AK (LHD)
Type of Flight Plan Filed: None
Destination: Kenai, AK (0AA7)
Type of Clearance: None
Departure Time: 1200 AKD
Type of Airspace: Class G
Airport Information
Airport: KALIFONSKY MEADOWS (0AA7)
Runway Surface Type: Grass/turf
Airport Elevation: 65 ft
Runway Surface Condition: Dry
Runway Used: 36
IFR Approach: None
Runway Length/Width: 2539 ft / 100 ft
VFR Approach/Landing: Full Stop; Traffic Pattern
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: 60.490000, -151.235000 (est)
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