Sunday, June 17, 2018

Piper PA-18-150, N3764Z: Accident occurred June 14, 2018 at Anderson Lake Airport (0AK1), Wasilla, Alaska

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

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Wasilla, AK
Accident Number: GAA18CA367
Date & Time: 06/14/2018, 1755 AKD
Registration: N3764Z
Aircraft: PIPER PA 18
Aircraft Damage: Substantial
Defining Event: Loss of control on ground
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

The pilot reported that, during short final, the airplane encountered moderate turbulence, but he was able to maintain runway alignment and glide slope with constant power and flight control adjustments. During the landing roll, about 20 miles per hour, the tailwheel equipped airplane veered right. He applied full left aileron and rudder corrections, but the airplane continued to the right, exited the runway, impacted a garden post and came to rest upright in a row of trees.

The airplane sustained substantial damage to the left wing.

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

The weather observation station located about 7 nautical miles from the accident site, about a minute after the accident, reported the wind was variable at 6 knots, gusting 15 knots. The pilot reported the wind was from 130ยบ at 21 knots, gusting 30 knots. The airplane landed on runway 26.

The pilot added that, after landing, the wind sock was discovered to be damaged, not indicating wind direction properly, was replaced days after the accident. 

Pilot Information

Certificate: Airline Transport; Flight Instructor; Commercial; Flight Engineer; Military
Age: 53, 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
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 12/04/2017
Occupational Pilot: Yes
Last Flight Review or Equivalent: 01/18/2018
Flight Time:   (Estimated) 12650 hours (Total, all aircraft), 4 hours (Total, this make and model), 3668 hours (Pilot In Command, all aircraft), 131 hours (Last 90 days, all aircraft), 81 hours (Last 30 days, all aircraft), 3 hours (Last 24 hours, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: PIPER
Registration: N3764Z
Model/Series: PA 18 150
Aircraft Category: Airplane
Year of Manufacture: 1960
Amateur Built: No
Airworthiness Certificate: Normal; Utility
Serial Number: 18-7527
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 05/18/2018, Annual
Certified Max Gross Wt.: 1750 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 1747 Hours as of last inspection
Engine Manufacturer: LYCOMING
ELT: C91  installed, not activated
Engine Model/Series: O-320-A@B
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: PAWS, 354 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 0156 UTC
Direction from Accident Site: 247°
Lowest Cloud Condition: Clear
Visibility 10 Miles
Lowest Ceiling: None
Visibility (RVR): Wind Speed/Gusts:  Light and Variable / 15 knots
Turbulence Type Forecast/Actual: None / None
Wind Direction: Variable
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 29.86 inches Hg
Temperature/Dew Point: 21°C / 6°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Wasilla, AK (0AK1)
Type of Flight Plan Filed: Unknown
Destination: Wasilla, AK (0AK1)
Type of Clearance: None
Departure Time: 1330 AKD
Type of Airspace: Class G

Airport Information

Runway Surface Type: Gravel
Airport Elevation: 463 ft
Runway Surface Condition: Dry
Runway Used: 26
IFR Approach: None
Runway Length/Width: 1800 ft / 40 ft
VFR Approach/Landing: Full Stop

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:  61.616944, -149.321667 (est)

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