Sunday, March 01, 2020

Loss of Engine Power (Total): North American Navion A, N8695H; accident occurred August 27, 2017 near Rohnerville Airport (KFOT), Fortuna, Humboldt County, California


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

Additional Participating Entity:

Federal Aviation Administration / Flight Standards District Office; Oakland, California

Aviation Accident Factual Report - National Transportation Safety Board:

Investigation Docket - National Transportation Safety Board:

Location: Fortuna, CA
Accident Number: WPR17LA191
Date & Time: 08/27/2017, 1620 PDT
Registration: N8695H
Aircraft Damage: Substantial
Defining Event: Loss of engine power (total)
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Personal 

On August 27, 2017, about 1620 Pacific daylight time, a North American Navion A airplane, N8695H, experienced a total loss of engine power during the initial climb from Rohnerville Airport, Fortuna, California. The private pilot was not injured; the airplane sustained substantial damage to the firewall during the forced landing. The airplane was registered to and operated by the pilot as a Title 14 Code of Federal Regulations Part 91 personal flight. Visual meteorological conditions prevailed and no flight plan had been filed for the local flight which departed from Fortuna about 1615.

The pilot stated that he departed with about 10-12 gallons of fuel on board. After the airplane reached about 1,000 ft above ground level (agl), the engine experienced a total loss of power. He attempted to return back to the airport, but was unable to maintain altitude and he made an off-airport landing in a pasture about .5 miles from the runway at Fortuna.

A Federal Aviation Administration (FAA) certificated airframe and powerplant mechanic completed a post accident examination under the auspice of an FAA inspector. The inspector noted that the original engine for this airplane was replaced by a Teledyne Continental Motors IO-470H which was installed in June 2003. The spark plugs were removed from all cylinders revealing no signs of deterioration, wear or oil/carbon fouling. Continuity was established for each magneto, which produced spark at each cylinder. A borescope inspection of each cylinder revealed no evidence of excessive wear, deterioration, broken rings, or broken valves.

The FAA inspector further stated that he observed fuel in the left, right, and main tanks. He sumped samples from each tank disclosing that there was no debris or water visible. Disassembly of the fuel manifold revealed a clean screen; there was no fuel visible. The mechanic removed the fuel inlet supply line to the fuel manifold and activated the electric fuel boost pump. Fuel flowed normally out of the inlet supply line from the tank that was selected, all of which were selected. The reason for the loss of power was not determined.

Pilot Information

Certificate: Private
Age: 91, Male 
Airplane Rating(s): Multi-engine Land; Single-engine Land
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: 08/01/2015
Occupational Pilot: No
Last Flight Review or Equivalent:
Flight Time: (Estimated) 3000 hours (Total, all aircraft) 

Aircraft and Owner/Operator Information

Registration: N8695H
Aircraft Category: Airplane
Year of Manufacture: 1947
Amateur Built: No
Airworthiness Certificate: Normal
Serial Number: NAV-4-695
Landing Gear Type: Tricycle
Seats: 4
Date/Type of Last Inspection: 10/18/2016, Annual
Certified Max Gross Wt.: 2860 lbs
Time Since Last Inspection: 4 Hours
Engines:  Reciprocating
Airframe Total Time: 3739 Hours at time of accident
Engine Manufacturer: Teledyne Continental
ELT: Installed, activated, aided in locating accident
Engine Model/Series: IO-470H6B
Registered Owner: On file
Rated Power: 260 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: KFOT, 391 ft msl
Distance from Accident Site: 1 Nautical Miles
Observation Time: 2315 UTC
Direction from Accident Site: 111°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling:None 
Visibility (RVR):
Wind Speed/Gusts: 12 knots / 17 knots
Turbulence Type Forecast/Actual:
Wind Direction: 290°
Turbulence Severity Forecast/Actual:
Altimeter Setting: 29.96 inches Hg
Temperature/Dew Point: 19°C / 13°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Fortuna, CA (FOT)
Type of Flight Plan Filed: None
Destination: Fortuna, CA (FOT)
Type of Clearance: None
Departure Time: 1615 PDT
Type of Airspace:

Airport Information

Runway Surface Type: N/A
Airport Elevation: 392 ft
Runway Surface Condition: Dry
Runway Used: N/A
IFR Approach: None
Runway Length/Width:
VFR Approach/Landing: Forced Landing

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: 40.558611, -124.148889

1 comment:

  1. I don't know if I like 91 year old pilots flying above my home. I sure don't like them driving on my streets.