Sunday, October 27, 2019

Part(s) Separation From Aircraft: Cessna Ector 305A, N1834; accident occurred August 27, 2017 at Wurtsboro–Sullivan County Airport (N82), New York

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

Additional Participating Entity: 

Federal Aviation Administration / Flight Standards District Office; Albany, New York

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Wurtsboro, NY
Accident Number: ERA17LA298
Date & Time: 08/27/2017, 1530 EDT
Registration: N1834
Aircraft: CESSNA 305
Aircraft Damage: Substantial
Defining Event: Part(s) separation from AC
Injuries: 1 Minor
Flight Conducted Under: Part 91: General Aviation - Other Work Use 

On August 27, 2017, about 1530 eastern daylight time, a Cessna 305A, N1834, was substantially damaged during the landing roll at Wurtsboro- Sullivan County Airport (N82), Wurtsboro, New York. The commercial pilot sustained minor injuries. The airplane was registered to and operated by a corporation as a Title 14 Code of Federal Regulations Part 91 glider tow flight. Visual meteorological conditions prevailed at the time of the accident, and no flight plan was filed for the local flight.

According to the pilot, he completed five glider tow flights prior to the accident flight. After he landed on a turf runway, during the landing roll, the pilot noticed a "severe vibration." Next, the airplane stopped, nosed over, and came to rest inverted on the turf runway.

During the accident sequence, the wings and rudder were substantially damaged.

In addition, the left main landing gear wheel had separated from the axle.

According to Federal Aviation Administration records, the airplane was manufactured in 1964. It was equipped with a Continental Motors Inc. O-470 series engine, a 213-hp, engine. According to the airframe maintenance logbook, the most recent annual inspection was performed on September 3, 2016, at a total time of 4,677.8 hours. At that time, it was "found to be in airworthy condition."

An examination of the left main landing gear wheel axle by the National Transportation Safety Board Materials Laboratory revealed that the axle of the left main landing gear assembly was fractured near the end that would have been attached to the landing gear strut. Examination of the fracture surface using a stereo microscope revealed fracture features consistent with a fatigue fracture. There were two opposing fatigue regions on the fracture surface separated by an overstress region. The first fatigue region had a shiny appearance consistent with recontact of the fracture surfaces. The second fatigue region exhibited a more matte appearance and covered a larger area than the first region. In addition, the tread of the rubber tire exhibited a wear pattern that was not centered but instead had shifted towards the shoulder.

According to Part 43 Appendix D – Scope and Detail of Items (as Applicable to Particular Aircraft) To Be Included in Annual and 100-Hour inspections, "each person performing an annual or 100-hour inspection shall inspect (where applicable) the following components of the landing gear group:
1) All units – for poor condition and insecurity of attachment.
3) Linkages, trusses, and members – for undue or excessive wear fatigue, and distortion.
7) Wheels – for cracks, defects, and condition of bearings.
8) Tires – for wear and cuts."

Pilot Information

Certificate: Flight Instructor; Commercial
Age: 78, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land; Single-engine Sea
Seat Occupied: Unknown
Other Aircraft Rating(s): Glider
Restraint Used: Unknown
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Multi-engine; Airplane Single-engine
Toxicology Performed: No
Medical Certification: Class 2
Last FAA Medical Exam: 04/01/2017
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time:

Aircraft and Owner/Operator Information

Aircraft Make: CESSNA
Registration: N1834
Model/Series:305 A 
Aircraft Category: Airplane
Year of Manufacture:
Amateur Built: No
Airworthiness Certificate: Utility
Serial Number: 2006
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: 09/03/2016, Annual
Certified Max Gross Wt.: 2101 lbs
Time Since Last Inspection:
Engines: 1 Reciprocating
Airframe Total Time: 4677.8 Hours as of last inspection
Engine Manufacturer: CONT MOTOR
Engine Model/Series: O-470 SERIES
Rated Power: 213 hp
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: MGJ, 365 ft msl
Distance from Accident Site: 10 Nautical Miles
Observation Time: 1554 EDT
Direction from Accident Site: 121°
Lowest Cloud Condition: Few / 6000 ft agl
Visibility:  10 Miles
Lowest Ceiling:None 
Visibility (RVR):
Wind Speed/Gusts: 5 knots /
Turbulence Type Forecast/Actual:
Wind Direction: 40°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 30.23 inches Hg
Temperature/Dew Point: 24°C / 10°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Wurtsboro, NY (N82)
Type of Flight Plan Filed: None
Destination: Wurtsboro, NY (N82)
Type of Clearance: None
Departure Time:  EDT
Type of Airspace:

Airport Information

Runway Surface Type: Grass/turf
Airport Elevation:548 ft 
Runway Surface Condition: Dry; Vegetation
Runway Used: 05
IFR Approach: None
Runway Length/Width: 3591 ft / 60 ft
VFR Approach/Landing: Full Stop; Traffic Pattern 

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Minor
Latitude, Longitude: 41.596667, -74.461389 (est)

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