GAA18CA312

NTSB accident investigation · Piper PA 46 · Prescott, AZ · May 30, 2018

Accident · No injuriesData collectionFinal report
Date
May 29, 2018, 21:15 local (May 30, 2018, 04:15 UTC)
Place
Prescott, AZ
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N148MEPiper PA 46
Defining event
Enroute-descent: Fuel exhaustion
Weather
Visual (VMC) · Night
Status
Completed · report March 18, 2019
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20180529015149A
Case key
97366

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 fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power.

Findings · 2

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 PA-46-310P: 1 caseAll aircraft: 719 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid levelPiper PA-46-310P: 3 casesAll aircraft: 1,695 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

According to the pilot, about 15 minutes before reaching the destination airport during descent, the engine lost power. The pilot switched fuel tanks, and the engine power was momentarily restored, but the engine stopped producing power even though he thought it "was still running all the way to impact." The pilot conducted a forced landed on a highway at night, and the right wing struck an object and separated from the airplane. The airplane came to rest inverted. According to the Federal Aviation Administration (FAA) aviation safety inspector (ASI) that performed the postaccident airplane examination, the fuel lines to the fuel manifold were dry, and the fuel manifold valves were dry. He reported that the fuel strainer, the diaphragm, and the fuel filter in the duel manifold were unremarkable. Fuel was found in the gascolator. The FAA ASI reported that, during his interview with the pilot, "the pilot changed his story from fuel exhaustion, to fuel contamination." The inspector reported that there were no signs of fuel contamination during the examination of the fuel system. According to the fixed-base operator (FBO) at the departure airport, the pilot requested 20 gallons of fuel. He then canceled his fuel request and walked out of the FBO.

Factual narrative

According to the pilot, about 15 minutes prior to reaching the destination airport during descent, the engine lost power. The pilot switched fuel tanks and the engine power was momentarily restored, but the engine stopped producing power, even though he thought it "was still running all the way to impact." The pilot force landed on a highway at night, and the right wing struck an object and separated from the airplane. The airplane came to rest inverted. According to the Federal Aviation Administration (FAA), Aviation Safety Inspector (ASI) that performed the post-accident airplane examination, the fuel lines to the fuel manifold were dry, and the fuel manifold valves were dry. He reported that the fuel strainer, the diaphragm, and the fuel filter in the duel manifold were unremarkable. Fuel was found in the gascolator. The FAA Inspector reported that during his interview with the pilot, "the pilot changed his story from fuel exhaustion, to fuel contamination." The Inspector reported that there were no signs of fuel contamination during the examination of the airplane's fuel system. According to the fixed base operator at the departure airport, the pilot requested 20 gallons of fuel. He then canceled his fuel request and walked out of the FBO.

Aircraft

Registration
N148ME
Reported as
Piper PA 46
Category
Airplane
Serial number
46-8608009
Built
1986
Engine
Continental TSIO-520, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
1st Avenue Malibu Services LLC
Registered owner
1st Avenue Malibu Services LLC
Airworthiness certificate
Standard, Normal
Departed
SNA · Santa Ana, CA
Destination
PRC · Prescott, AZ
Flight plan
IFR
Airport
PRC · Ernest A Love Field
Equipment
Onboard weather, Electronic flight bag or handheld device, Auto-pilot

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
34
Injuries
Minor
Certificates
Private, Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1
Last flight review
March 27, 2018
Seat
Left
Restraint
3-point
Flight hours
3,100 total · 3 in this make and model · 2,000 as pilot in command · 60 in the last 90 days · 22 in the last 30 days

Weather

Conditions
Visual (VMC) · Night
Wind
210° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 28 °F
Altimeter
29.95 inHg
Observed at
KPRC, 20 nm away

Docket · 3

The files NTSB released with the investigation on October 29, 2018, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.7 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.