Wednesday, December 18, 2019

Aerodynamic Stall / Spin: Piper PA-28-140, N4245J; accident occurred July 10, 2019 at Wasilla Airport (PAWS), Alaska

View of right wing damage.
Federal Aviation Administration


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

https://registry.faa.gov/N4245J

Location: Wasilla, AK
Accident Number: GAA19CA430
Date & Time: 07/09/2019, 1700 AKD
Registration: N4245J
Aircraft: Piper PA28
Aircraft Damage: Substantial
Defining Event: Aerodynamic stall/spin
Injuries: 4 None
Flight Conducted Under: Part 91: General Aviation - Personal 


View of engine mount damage.

Federal Aviation Administration


Analysis 

The pilot reported that, during the landing flare, the airplane stalled and then fell the final 3 to 5 ft to the runway and landed hard. Subsequently, the nose landing gear tire "blew out," which resulted in the mounting framework collapsing. The airplane then veered right and exited the runway, and the right wing impacted a runway sign.

The airplane sustained substantial damage to the engine mount and right 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 improper landing flare, which resulted in an aerodynamic stall and subsequent hard landing, runway excursion, and collision with a sign.

Findings

Aircraft
Landing flare - Not attained/maintained (Cause)

Personnel issues
Aircraft control - Pilot (Cause)

Environmental issues
Sign/marker - Effect on operation (Cause)

Factual Information

History of Flight

Landing
Aerodynamic stall/spin (Defining event)
Hard landing
Runway excursion
Collision with terr/obj (non-CFIT)

Pilot Information

Certificate: Private
Age: 56, Male
Airplane Rating(s): Single-engine Land
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): None
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 Without Waivers/Limitations
Last FAA Medical Exam: 06/17/2019
Occupational Pilot: No
Last Flight Review or Equivalent: 06/29/2019
Flight Time:  (Estimated) 250 hours (Total, all aircraft), 150 hours (Total, this make and model), 250 hours (Pilot In Command, all aircraft), 4 hours (Last 90 days, all aircraft), 4 hours (Last 30 days, all aircraft), 2 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: Piper
Registration: N4245J
Model/Series: PA28 140
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Normal; Utility
Serial Number: 28-22600
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 11/28/2018, Annual
Certified Max Gross Wt.: 2150 lbs
Time Since Last Inspection: 
Engines: 1 Reciprocating
Airframe Total Time: 3902.71 Hours as of last inspection
Engine Manufacturer: Lycoming
ELT: C91 installed, not activated
Engine Model/Series: O-320 E2A
Registered Owner: On file
Rated Power: 150 hp
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Unknown
Condition of Light: Day
Observation Facility, Elevation: PAAQ, 230 ft msl
Distance from Accident Site: 7 Nautical Miles
Observation Time: 0053 UTC
Direction from Accident Site: 101°
Lowest Cloud Condition: Clear
Visibility:  6 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 5 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: 26°C / 14°C
Precipitation and Obscuration: Moderate - Smoke; Moderate - Haze; No Obscuration; No Precipitation
Departure Point: Wasilla, AK (0AK1)
Type of Flight Plan Filed: None
Destination: Wasilla, AK (0AK1)
Type of Clearance: None
Departure Time: 1530 AKD
Type of Airspace: Class G

Airport Information

Airport: Anderson Lake (0AK1)
Runway Surface Type: Gravel
Airport Elevation: 463 ft
Runway Surface Condition: Dry
Runway Used: 08
IFR Approach: None
Runway Length/Width: 1800 ft / 40 ft
VFR Approach/Landing: Full Stop; Traffic Pattern

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: 3 None
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 4 None
Latitude, Longitude: 61.616944, -149.321667 (est)

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