WPR23LA051

NTSB accident investigation · Cosmos Phase II · Lake Havasu, AZ · November 26, 2022

Accident · No injuriesClass 4 · LimitedFinal report
Date
November 26, 2022, 10:00, time zone not recorded
Place
Lake Havasu, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N254DWCosmos Phase II
Defining event
Enroute: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20221126020679A
Case key
106395

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

The pilot’s inadequate preflight inspection and fuel planning and improper in-flight decision-making, which resulted in a total loss of engine power due to fuel exhaustion and a subsequent landing on rough terrain.

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.

Planning/preparation: fuel planningPersonnel issues › Task performance · PilotCosmos PHASE II: 1 caseAll aircraft: 719 casesProbable cause
Inspection: preflight inspectionPersonnel issues › Task performance · PilotCosmos PHASE II: 2 casesAll aircraft: 551 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeCosmos PHASE II: 1 caseAll aircraft: 442 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 pilot of the weight-shift aircraft reported that, he was out for a pleasure flight and ran out of fuel and was forced to land on desert terrain. During the landing, the aircraft collided with vegetation which substantially damaged the fuselage. The pilot reported that a better preflight would have prevented this accident. The pilot reported that there were no preaccident mechanical failures or malfunctions with the aircraft that would have precluded normal operation.

Aircraft

Registration
N254DW
Reported as
Cosmos Phase II
Category
Weight-shift
Serial number
91127
Built
2001
Engine
Rotax, 60 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental light sport (Special)
Departed
KHII · Lake Havasu City, AZ
Destination
KHII · Lake Havasu City, AZ
Airport
N/A
Equipment
Unknown

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
69
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Center
Restraint
Lap only
Flight hours
210 total · 60 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
54 °F, dew point 19 °F
Altimeter
30.16 inHg
Icing
Unknown
Turbulence
Unknown
Observed at
KEED, 17 nm away
METAR
METAR KEED 261756Z AUTO 11004KT 10SM CLR 12/M07 A3016 RMK AO2 SLP204 T01171072 10117 20039 58001 $

Docket · 3

The files NTSB released with the investigation on January 31, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 6.6 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.