WPR09CA092

NTSB accident investigation · Ryan Navion · Three Forks, MT · January 19, 2009

Accident · No injuriesData collectionFinal report
Date
January 18, 2009, 17:45 local (Jan 19, 2009, 00:45 UTC)
Place
Three Forks, MT
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N4443KRyan Navion
Defining event
Approach-VFR pattern final: Fuel starvation
Weather
Visual (VMC) · Dusk
Status
Completed · report April 15, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20090118000149A
Case key
73251

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

A total loss of engine power due to fuel starvation as a result of the pilot's inadequate fuel system management. Contributing to the accident were the pilot's diverted attention and failure to perform the prelanding checklist.

Findings · 3

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementRyan NAVION: 2 casesAll aircraft: 1,695 casesProbable cause
Attention/monitoring: attentionPersonnel issues › Psychological · PilotRyan NAVION: 1 caseAll aircraft: 226 casesProbable cause
Use of equip/info: use of checklistPersonnel issues › Task performance · PilotRyan NAVION: 1 caseAll aircraft: 336 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The pilot reported that prior to departure he noted that both wing tip tanks were full of fuel and that the main tank was at least 2/3 full, giving adequate fuel for the flight. After takeoff, the pilot repositioned the fuel selector to draw fuel from the right tip tank, and later, while en route, the pilot switched the fuel selector to the left tip tank. Approaching the destination airport, the pilot became somewhat distracted while talking with a passenger. He did not follow the prelanding checklist and failed to reposition the fuel selector to the main tank, which contained adequate fuel. When the airplane was about 2.5 miles from the airport, all engine power was lost. The pilot then repositioned the fuel selector to draw fuel from the main tank; however, engine power was not restored as the airplane descended from the traffic pattern. The pilot made a forced landing on the underlying rough terrain. During roll out, the airplane collided with vegetation and a wing broke.

Factual narrative

The pilot reported that prior to departure he noted that both wing tip tanks were full of fuel and the main tank was at least 2/3 full, giving adequate fuel for the flight. After takeoff the pilot repositioned the fuel selector to draw fuel from the right tip tank, and later while en route, the pilot switched the fuel selector to the left tip tank. Approaching the destination airport, the pilot became somewhat distracted while talking with a passenger. He did not follow the prelanding checklist and failed to reposition the fuel selector to the main tank, which contained adequate fuel. When the airplane was about 2.5 miles from the airport, all engine power was lost. The pilot then repositioned the fuel selector to draw fuel from the main tank; however, engine power was not restored as the airplane descended from the traffic pattern. The pilot made a forced landing on the underlying rough terrain. During roll out, the airplane collided with vegetation and a wing broke.

Aircraft

Registration
N4443K
Reported as
Ryan Navion
Category
Airplane
Serial number
NAV-4-1443
Airframe hours
5,738
Engine
Cont Motor IO-470 SERIES, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · March 8, 2008 · 51 hours before
Departed
GCC · Gillette-Campbe, WY
Destination
9S5 · Three Forks, MT
Flight plan
VFR
Airport
9S5 · Three Forks, runway 20, 5,100 × 60 ft, asphalt

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
74
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
April 3, 2008
Seat
Left
Flight hours
974 total · 32 in this make and model · 937 as pilot in command · 11 in the last 90 days · 8 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
Calm
Visibility
20 statute miles
Lowest ceiling
None

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.