CEN18LA354

NTSB accident investigation · Beech 35 · Bowman, ND · August 26, 2018

Accident · Serious injuriesLimited investigationFinal report
Date
August 26, 2018, 11:55 local (17:55 UTC)
Place
Bowman, ND
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N666WWBeech 35
Defining event
Initial climb: Fuel starvation
Weather
Visual (VMC) · Day
Status
Completed · report September 27, 2019
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20180826012359A
Case key
98173

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 loss of engine power due to fuel starvation.

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.

Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementBeech 35-B33: 4 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

The commercial pilot and the passenger departed on a cross-country personal flight; the pilot indicated that, shortly after takeoff, the engine started "sputtering" and then lost power. The pilot attempted to restore engine power to no avail and performed a forced landing to a field, during which the airplane sustained substantial damage to the wing spars. A postaccident examination of the airframe, fuel system, and engine revealed no evidence of mechanical failures or malfunctions that would have precluded normal operation. Although both main fuel tanks were full, further examination revealed that there was no fuel in the fuel lines, fuel, pump, or engine forward of the airplane firewall and fuel selector. Thus, it is likely that the fuel selector valve was not secured in the detent properly, which resulted in a loss of engine power due to fuel starvation.

Factual narrative

On August 26, 2018, about 1150 mountain daylight time, a Beech 35 airplane, N666WW, lost engine power shortly after takeoff from the Bowman Regional Airport (KBWW), Bowman, North Dakota. The commercial pilot sustained serious injury and the passenger sustained minor injuries. The airplane sustained substantial damage. The personal flight was conducted under the provisions of Title 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.According to the pilot, the cross-country flight was originating at the time of the accident and was en route to Dickinson-Theodore Roosevelt Regional Airport (KDIK), Dickinson, North Dakota. Shortly after takeoff, about 400 ft agl, the engine started "sputtering" and lost power. The pilot turned on the fuel pump and attempted to restore engine power without success. The pilot performed a forced landing to a field. During the landing, both main landing gear were pushed up through the wings and both wing spars were substantially damaged. According to the FAA inspector who responded to the accident site, both main fuel tanks were full of fuel. Further examination revealed that there was no fuel in the fuel lines, fuel, pump, or engine, forward of the airplane firewall and fuel selector. The fuel selector valve was found in the "OFF" position. An examination of the airplane, fuel system, and engine, conducted by the National Transportation Safety Board and FAA, revealed no mechanical anomalies that would have precluded normal operations.

Aircraft

Registration
N666WW
Reported as
Beech 35 (B33)
Category
Airplane
Serial number
CD-572
Built
1962
Airframe hours
9,480.2
Engine
Continental IO-470-K, 225 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 6, 2018
Departed
KBWW · Bowman, ND
Destination
DIK · Dickinson, ND
Airport
KBWW · Bowman
Equipment
Stall warning system, ADS-B, Auto-pilot, Electronic flight bag or handheld device, Electronic primary flight display

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
65
Injuries
Serious
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
BasicMed, Without waivers/limitations
Last flight review
July 26, 2017
Seat
Left
Restraint
Lap only
Flight hours
1,597 total · 83 in this make and model · 1,597 as pilot in command · 39 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 10 knots, gusting 15
Visibility
10 statute miles
Lowest ceiling
1,600 ft overcast
Temperature
70 °F, dew point 59 °F
Altimeter
29.70 inHg
Observed at
KHEI, 28 nm away

Docket · 2

The files NTSB released with the investigation on May 13, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.9 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.