ANC15LA010

NTSB accident investigation · Piper PA 12 · Palmer, AK · February 1, 2015

Accident · No injuriesLimited investigationFinal report
Date
January 31, 2015, 20:40 local (Feb 1, 2015, 05:40 UTC)
Place
Palmer, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N2370MPiper PA 12
Defining event
Approach-VFR pattern base: Fuel starvation
Weather
Visual (VMC) · Night
Status
Completed · report November 5, 2015
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
FAA Wasilla FSDO
FAA report
20150131002879A
Case key
90682

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 student pilot’s improper fuel management, which resulted in a loss of engine power due to fuel starvation. Contributing to the accident was the pilot’s inadvertent switching of the fuel selector to the “off” position during the attempted engine restart.

Findings · 4

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.

Use of equip/info: use of equip/systemPersonnel issues › Task performance · Student/instructed pilotPiper PA-12: 10 casesAll aircraft: 1,391 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelPiper PA-12: 10 casesAll aircraft: 1,695 casesProbable cause
Object/animal/substance: wireEnvironmental issues › Physical environment · Contributed to outcomePiper PA-12: 1 caseAll aircraft: 588 cases
Use of equip/info: use of equip/systemPersonnel issues › Task performance · Student/instructed pilotPiper PA-12: 10 casesAll aircraft: 1,391 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 student pilot reported that he was practicing night, solo takeoffs and landings when the engine lost power. He attempted to restart the engine by applying carburetor heat and switching the fuel selector from the left tank to the right tank, but the engine did not regain power. He did not think that the airplane could reach the runway, so he chose to conduct a forced landing in a golf course adjacent to the airport. During the final approach, the landing gear contacted a power line, and the airplane subsequently impacted terrain. The student pilot further reported that he believed that he inadvertently switched the fuel selector to the "off" position instead of the "right tank" position after the power loss. Examination of the airplane's fuel tanks after the accident revealed that the left wing fuel tank was empty.

Factual narrative

On January 31, 2015, about 2040 Alaska standard time, a Piper PA-12 airplane, sustained substantial damage during a forced landing, following a loss of engine power while in the traffic pattern at the Palmer Municipal Airport, Palmer Alaska. The student pilot was not injured. The airplane was registered to a private individual, and operated by the pilot as a night, visual flight rules training flight under the provisions of 14 CFR part 91 when the accident occurred. Night, visual meteorological conditions prevailed, and no flight plan was filed for the local flight. In a telephone conversation with the National Transportation Safety Board investigator-in-charge, the student pilot stated that he was practicing night, solo takeoff and landings at the Palmer Airport. While turning from the downwind to base leg in the traffic pattern, the engine began to sputter and lose power. He applied carburetor heat and switched fuel tanks, and the engine momentarily regained power, but then lost power a second time. Not thinking that he could make the runway environment, he elected for a forced landing on a golf course adjacent to the airport. During the final approach, the airplane's landing gear contacted a power line, and the airplane impacted terrain, sustaining substantial damage to the wings and fuselage. Examination of the airplane by a Federal Aviation Administration (FAA) safety inspector from the Wasilla Flight Standards District Office revealed that the left wing fuel tank was empty. In a separate interview with the FAA, the student pilot stated that after the engine lost power the first time he thought that he inadvertently switched the fuel selector valve to the "OFF" position instead of the "Right Tank" position. The student pilot did not complete and submit NTSB form 6120.1

Aircraft

Registration
N2370M
Reported as
Piper PA 12
Category
Airplane
Serial number
12-1613
Built
1946
Engine
Lycoming O-290 SERIES, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Airworthiness certificate
Standard, Normal
Departed
Wasilla, AK
Destination
PAQ · Palmer, AK

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
Student pilot
Age
37
Injuries
None
Certificate
Student
Airplane ratings
Single-engine land
Medical
Class 3, Unknown
Seat
Front
Flight hours
35 total · 35 in this make and model

Weather

Conditions
Visual (VMC) · Night
Wind
120° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
3 °F, dew point 1 °F
Altimeter
30.23 inHg
Observed at
PAAQ, 1 nm away

Docket · 2

The files NTSB released with the investigation on October 13, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 80 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.