CEN14CA137

NTSB accident investigation · Piper PA 18-150 · Gordon, NE · February 12, 2014

Accident · No injuriesData collectionFinal report
Date
February 12, 2014, 11:22 local (18:22 UTC)
Place
Gordon, NE
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N83325Piper PA 18-150
Defining event
Enroute-cruise: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed · report April 1, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20140212001339A
Case key
88796

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 loss of engine power due to the pilot's improper planning and miscalculation of the fuel supply, which resulted in fuel exhaustion.

Findings · 5

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 managementPiper PA-18-150: 4 casesAll aircraft: 1,695 casesProbable cause
Planning/preparation: fuel planningPersonnel issues › Task performance · PilotPiper PA-18-150: 1 caseAll aircraft: 719 casesProbable cause
Object/animal/substance: poleEnvironmental issues › Physical environment · Contributed to outcomePiper PA-18-150: 3 casesAll aircraft: 142 cases
Object/animal/substance: fence/fence postEnvironmental issues › Physical environment · Contributed to outcomePiper PA-18-150: 5 casesAll aircraft: 313 cases

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

In a statement provided by the pilot, the fuel calculations for the accident flight were based on the fuel burn from the flight the day before. On the day of the accident flight, the pilot used a clock timer from the time of engine start to estimate the longevity of the fuel supply. He and his passenger departed on a low altitude wildlife control flight. When the timer read 4 hours and 22 minutes, the engine experienced a partial loss of power two consecutive times. The pilot restored the power both times by applying carburetor heat. When the engine experienced a loss of power the third time, he attempted to restore the power by leaning the mixture control and adjusting the fuel selector. Finally, the engine experienced a total loss of power and the pilot landed on the highway to the north with a gusty quartering tailwind from the southwest. During the landing roll, a gust of wind pushed the airplane to the right. The airplane exited the road, struck a fence, and a wooden pole which resulted in substantial damage to the right wing and fuselage. The responding Federal Aviation Administration inspector determined that the airplane's usable fuel supply had been exhausted. In a statement provided by the operator's representative, the pilot stated that his fuel calculations were not correct and the fuel supply had been exhausted.

Factual narrative

In a statement provided by the pilot, the fuel calculations for the accident flight were based on the fuel burn from the flight the day before. On the day of the accident flight, the pilot used a clock timer from the time of engine start to estimate the longevity of the fuel supply. He and his passenger departed on a low altitude wildlife control flight. When the timer read 4 hours and 22 minutes, the engine experienced a partial loss of power two consecutive times. The pilot restored the power both times by applying carburetor heat. When the engine experienced a loss of power the third time, he attempted to restore the power by leaning the mixture control and adjusting the fuel selector. Finally, the engine experienced a total loss of power and the pilot landed on the highway to the north with a gusty quartering tailwind from the southwest. During the landing roll, a gust of wind pushed the airplane to the right. The airplane exited the road, struck a fence, and a wooden pole which resulted in substantial damage to the right wing and fuselage. The responding Federal Aviation Administration inspector determined that the airplane's usable fuel supply had been exhausted. In a statement provided by the operator's representative, the pilot stated that his fuel calculations were not correct and the fuel supply had been exhausted.

Aircraft

Registration
N83325
Reported as
Piper PA 18-150 (A150)
Category
Airplane
Serial number
18-7609078
Built
1976
Airframe hours
14,717
Engine
Lycoming O-320 A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Public aircraft - federal · Public use
Operator
Usda Aphis Wildlife Services
Registered owner
Usda Aphis Wildlife Services
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
100 hour · May 1, 2013
Departed
GRN · Gordon, NE
Destination
GRN · Gordon, NE
Airport
GRN · Gordon Muni

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
39
Injuries
None
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
February 4, 2014
Seat
Front
Restraint
5-point
Flight hours
4,328 total · 105 in this make and model · 3,938 as pilot in command · 49 in the last 90 days · 49 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
34 °F, dew point 18 °F
Altimeter
29.88 inHg
Observed at
KIEN, 23 nm away

Docket · 5

The files NTSB released with the investigation on March 28, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.4 MB in all.

FAA reports on this event · 1

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

Other investigations on N83325 · 1

Matched to the same aircraft by N-number and date.