ANC14LA091

NTSB accident investigation · Piper J3 · Ft. Yukon, AK · September 28, 2014

Accident · No injuriesLimited investigationFinal report
Date
September 28, 2014, 14:50 local (22:50 UTC)
Place
Ft. Yukon, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N7092HPiper J3
Defining event
Enroute: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed · report March 2, 2016
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20140928021269A
Case key
91000

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

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Probable cause

The pilot's improper preflight inspection and in-flight fuel management, which resulted in fuel exhaustion and a subsequent forced landing.

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.

Planning/preparation: fuel planningPersonnel issues › Task performance · PilotPiper J3C-65: 3 casesAll aircraft: 719 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelPiper J3C-65: 7 casesAll aircraft: 1,695 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Contributed to outcomePiper J3C-65: 11 casesAll aircraft: 933 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

The private pilot was conducting a personal cross-country flight. The pilot reported that, during the flight, the engine experienced a total loss of power. The pilot made a forced landing in a burned out area of trees, which resulted in substantial damage to the wings and fuselage. The pilot reported the accident about 6 months after it occurred. The pilot reported that, after the forced landing, he noted that the right fuel tank cap was missing and that the fuel in the right fuel tank was depleted. The fuel selector was selected to the right fuel tank when the engine lost power, and the pilot stated that he did not attempt to switch the fuel selector to the left fuel tank. The airplane was never recovered or examined; however, given the pilot's statement, it is likely that the engine lost power due to fuel exhaustion.

Factual narrative

On September 28, 2014, about 1450 Alaska daylight time, a Piper J-3 airplane, N7092H, sustained substantial damage after colliding with terrain following a loss of engine power about 20 miles north of Circle, Alaska. The airplane was owned and operated by the private pilot as a personal flight under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no Federal Aviation Administration (FAA) flight plan had been filed for the flight. On the day of the accident, the National Transportation Safety Board investigator-in-charge was notified that an airplane had crashed and that the pilot was taken to a hospital for treatment and released. In the weeks following the accident, multiple attempts were made to contact the pilot by both the NTSB and FAA, with no success. On April 1, 2015, the accident pilot contacted the FAA and made a statement about the accident. He stated that he was returning from his homestead about 140 miles north of Circle, and about 20 miles north of Circle, the airplane's engine lost all power. He made a forced landing in a burned out area of trees, and the airplane sustained damage to both wing, the left wing spar, and the fuselage. After the forced landing, he stated that he noticed the right hand wing fuel cap was missing. He stated that he had added five gallons of fuel to the right fuel tank before departing, and flew with the fuel selector on the right fuel tank for the entire flight before the engine lost power. He stated that after the engine lost power, he did not attempt to switch the fuel selector to the left fuel tank. The airplane was not examined by the NTSB, and after repeated attempts, the pilot did not submit an NTSB Pilot/Operator Aircraft Accident Report (NTSB Form 6120.1)

Aircraft

Registration
N7092H
Reported as
Piper J3
Category
Airplane
Serial number
20343
Built
1963
Engine
Cont Motor A&C75 SERIES, 75 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal

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
63
Injuries
None
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Last flight review
October 12, 2010
Seat
Front

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
37 °F, dew point 23 °F
Altimeter
29.75 inHg
Observed at
PFYU, 31 nm away

Docket · 1

The files NTSB released with the investigation on January 28, 2016, on NTSB’s docket system: statements, records, photos and specialists’ reports. 124 KB 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.