Sunday, October 20, 2019

Unknown or Undetermined: Cessna TU206G Turbo, N206HL; accident occurred October 02, 2015 near Fall City Airport (1WA6), King County, Washington

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

Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; Renton, Washington
Textron Aviation; Wichita, Kansas
Continental Motors Inc; Mobile, Alabama

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board: 

Location: Fall City, WA
Accident Number: WPR16LA003
Date & Time: 10/02/2015, 1835 PDT
Registration: N206HL
Aircraft: CESSNA TU206G
Aircraft Damage: Substantial
Defining Event: Unknown or undetermined
Injuries: 1 Serious
Flight Conducted Under: Part 91: General Aviation - Personal 

On October 2, 2015, about 1835 Pacific daylight time, a Cessna TU206G, N206HL, impacted terrain about 1 mile southeast from the Fall City Airport (1WA6), Fall City, Washington. The private pilot was seriously injured, and the airplane sustained substantial damage. The airplane was registered to Global Ventures, Inc., and the pilot was operating it as a Title 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed for the flight that originated from the Portland-Hillsboro Airport (HIO), Portland, Oregon about 1700. The flight was destined for 1WA6.

According to records provided by the Federal Aviation Administration (FAA), the airplane was initially on an instrument flight rules (IFR) flight plan to Boeing Field/King County International Airport (BFI), Seattle, Washington. The pilot cancelled the IFR flight plan with air traffic controllers, and then proceeded under visual flight rules (VFR) to 1WA6. The pilot had no further radio contact with any air traffic facilities.

Emergency responders reported that they received a call regarding a downed airplane that had come to rest behind the Fall City Beach Grill. They reported that the wings were damaged, and the left fuel tank had ruptured, and fuel was leaking.

FAA inspectors responded to the accident site. They stated that the engine mounts and engine separated from the firewall and the nose landing gear fork had sheared.

A postaccident engine examination was accomplished under the auspices of the FAA, and Continental Motors Inc. The visual examination revealed no holes in the crankcase. The engine remained attached to the airframe through the engine mounts; it sustained minor impact damage. The propeller assembly remained attached to the crankshaft. Two of the propeller blades had aft bending and chord wise scratches while the third blade was not damaged. The exhaust system remained attached and secured to the cylinders and turbocharger. No leaks were noted with the induction system. Both magnetos remained attached and secured to their respective mounting pads on the engine; spark was obtained at the posts for both magnetos. The spark plugs remained secured to their cylinders and ignition leads. The number 2 top spark plug displayed a significant amount of combustion deposits on the electrode, as well as a broken insulator. The other spark plugs displayed normal operating and wear signatures.

The propeller was removed from the crankshaft, and the crankshaft was rotated using a hand tool. Valve train and mechanical continuity was established, and thumb compression was obtained during manual rotation. The crankshaft was corroded aft of the propeller flange just forward of the crankshaft seal.

With the exception of the number 2-cylinder top spark plug, there were no other anomalies noted with the engine that would have precluded normal operation.

The pilot did not return NTSB form 6120.1 Pilot/Operator Aircraft Accident/Incident Report. Multiple attempts were made to contact the pilot to determine what the nature of the emergency was that he had encountered while en route to 1WA6; however, he did not respond.

Pilot Information

Certificate: Private
Age: 39, Male
Airplane Rating(s): Single-engine Land; Single-engine Sea
Seat Occupied: Left
Other Aircraft Rating(s): None
Restraint Used:
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 3 With Waivers/Limitations
Last FAA Medical Exam: 04/01/2015
Occupational Pilot: No
Last Flight Review or Equivalent: 
Flight Time:

Aircraft and Owner/Operator Information

Aircraft Make: CESSNA
Registration: N206HL
Model/Series: TU206G
Aircraft Category: Airplane
Year of Manufacture: 1993
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: U20604986
Landing Gear Type: Unknown
Date/Type of Last Inspection:
Certified Max Gross Wt.:
Time Since Last Inspection:
Airframe Total Time:
Engine Manufacturer:
Engine Model/Series:
Registered Owner: On file
Rated Power:
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: RTN, 140 ft msl
Distance from Accident Site:
Observation Time: 1830 PDT
Direction from Accident Site:
Lowest Cloud Condition: Clear
Visibility:  6 Miles
Lowest Ceiling: Broken / 800 ft agl
Visibility (RVR):
Wind Speed/Gusts: 15 knots /
Turbulence Type Forecast/Actual: None / None
Wind Direction: 160°
Turbulence Severity Forecast/Actual: N/A / N/A
Altimeter Setting: 30.05 inches Hg
Temperature/Dew Point: 13°C / 12°C
Precipitation and Obscuration: Moderate - Mist
Departure Point:
Type of Flight Plan Filed: IFR
Destination: Fall City, WA
Type of Clearance: None
Departure Time:
Type of Airspace:

Wreckage and Impact Information

Crew Injuries: 1 Serious
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Serious
Latitude, Longitude: 47.559444, -121.863611 (est)

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