Saturday, January 08, 2022

Abnormal Runway Contact: Cessna 170B, N4344B; accident occurred January 08, 2021 at Schoepflin Airport (WN26), Palouse, Whitman County, Washington







Aviation Accident Final Report - National Transportation Safety Board

The National Transportation Safety Board did not travel to the scene of this accident. 

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

Investigation Docket - National Transportation Safety Board:
   

Location: Palouse, Washington
Accident Number: WPR21LA083
Date and Time: January 8, 2021, 14:00 Local
Registration: N4344B
Aircraft: Cessna 170B
Aircraft Damage: Substantial
Defining Event: Abnormal runway contact
Injuries: 1 Minor, 1 None
Flight Conducted Under: Part 91: General aviation - Instructional

Analysis

The flight instructor of the tailwheel equipped airplane reported that, during an instructional flight, the student pilot’s landing flare was not sufficient to preclude a bounce. The student added power, and the airplane turned to the left toward hangars. The flight instructor took over the flight controls and continued the left turn to avoid hangars. The airplane departed the runway surface into a field. The wheels became stuck in the muddy ground and the airplane nosed over and came to rest inverted. The wings and vertical stabilizer were substantially damaged.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The student pilot’s improper landing flare and loss of directional control and the flight instructor’s delayed remedial action resulted in a runway excursion and nose over. 

Findings

Personnel issues Decision making/judgment - Student/instructed pilot
Personnel issues Aircraft control - Student/instructed pilot
Aircraft Landing flare - Incorrect use/operation
Personnel issues Monitoring other person - Instructor/check pilot
Personnel issues Delayed action - Instructor/check pilot
Environmental issues Wet/muddy terrain - Contributed to outcome

Factual Information

History of Flight

Landing-flare/touchdown Abnormal runway contact (Defining event)
Landing-landing roll Loss of control on ground
Landing-landing roll Nose over/nose down

Flight instructor Information

Certificate: Commercial; Flight instructor
Age: 61,Male
Airplane Rating(s): Single-engine land; Multi-engine land
Seat Occupied: Right
Other Aircraft Rating(s): None 
Restraint Used: Lap only
Instrument Rating(s): Airplane 
Second Pilot Present: Yes
Instructor Rating(s): Airplane multi-engine; Airplane single-engine; Instrument airplane
Toxicology Performed:
Medical Certification: Class 2 Without waivers/limitations
Last FAA Medical Exam: July 1, 2020
Occupational Pilot: No 
Last Flight Review or Equivalent: June 27, 2019
Flight Time: (Estimated) 2174 hours (Total, all aircraft), 11 hours (Total, this make and model), 2046 hours (Pilot In Command, all aircraft), 26 hours (Last 90 days, all aircraft), 9 hours (Last 30 days, all aircraft) 

Student pilot Information

Certificate: Student
Age: 39, Male
Airplane Rating(s): None 
Seat Occupied: Left
Other Aircraft Rating(s): None 
Restraint Used: Lap only
Instrument Rating(s): None 
Second Pilot Present: Yes
Instructor Rating(s): None 
Toxicology Performed:
Medical Certification: Class 3 Without waivers/limitations
Last FAA Medical Exam: December 17, 2019
Occupational Pilot: No 
Last Flight Review or Equivalent:
Flight Time: (Estimated) 69 hours (Total, all aircraft), 8 hours (Total, this make and model), 11 hours (Pilot In Command, all aircraft), 8 hours (Last 90 days, all aircraft), 3 hours (Last 30 days, all aircraft)

Aircraft and Owner/Operator Information

Aircraft Make: Cessna 
Registration: N4344B
Model/Series: 170B NO SERIES 
Aircraft Category: Airplane
Year of Manufacture: 1955
Amateur Built:
Airworthiness Certificate: Normal 
Serial Number: 26688
Landing Gear Type: Tailwheel 
Seats: 4
Date/Type of Last Inspection: September 3, 2020 Annual 
Certified Max Gross Wt.:
Time Since Last Inspection: 17 Hrs
Engines: 1 Reciprocating
Airframe Total Time: 3173.2 Hrs
Engine Manufacturer: CONT MOTOR
ELT: Installed
Engine Model/Series: 0-300 SER
Registered Owner:
Rated Power: 145 Horsepower
Operator: On file 
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual (VMC) 
Condition of Light: Day
Observation Facility, Elevation: KPUW, 2551 ft msl 
Distance from Accident Site: 9 Nautical Miles
Observation Time: 13:53 Local
Direction from Accident Site: 189°
Lowest Cloud Condition: Scattered / 12000 ft AGL
Visibility: 10 miles
Lowest Ceiling: None 
Visibility (RVR):
Wind Speed/Gusts: / 
Turbulence Type Forecast/Actual: None / None
Wind Direction: 
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.18 inches Hg 
Temperature/Dew Point: 3°C / 0°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Palouse, WA
Type of Flight Plan Filed: None
Destination: Palouse, WA 
Type of Clearance: None
Departure Time: 
Type of Airspace: Class G

Airport Information

Airport: SCHOEPFLIN WN26 
Runway Surface Type: Asphalt
Airport Elevation: 2607 ft msl 
Runway Surface Condition: Dry
Runway Used: 11 
IFR Approach: None
Runway Length/Width: 1600 ft / 25 ft
VFR Approach/Landing: Full stop; Traffic pattern

Wreckage and Impact Information

Crew Injuries: 1 Minor, 1 None 
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 Minor, 1 None 
Latitude, Longitude: 46.884969,-117.07687



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