CEN22LA260

NTSB accident investigation · Smith Miniplane DSA-1 · Union, NE · June 19, 2022

Accident · Minor injuriesClass 3 · LimitedFinal report
Date
June 19, 2022, 10:30 local (15:30 UTC)
Place
Union, NE
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N208CSmith Miniplane DSA-1
Defining event
Enroute: Fuel exhaustion
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 3
NTSB office
Central Region
Parties
Flight Standards District Office
FAA report
20220619010659A
Case key
105304

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 inadequate fuel planning, which resulted in a total loss of engine power due to fuel exhaustion.

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 · PilotSmith Miniplane DSA-1: 1 caseAll aircraft: 719 casesProbable cause
Fluids: fuelAircraft › Fluids/misc hardware · Fluid managementSmith Miniplane DSA-1: 1 caseAll 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 pilot reported that, while in cruise flight about 1,000 ft above ground level, the engine began running rough. The pilot subsequently made a forced landing into a wooded area, which resulted in substantial damage to the airplane. Postaccident examination revealed that no fuel was present in the fuel line from the engine-driven pump to the carburetor. The carburetor bowl was completely dry, and the fuel tank was empty when viewed with a borescope. No anomalies were observed with the fuel cap vent, filler neck, carburetor, engine cylinders, magnetos, or the engine’s mechanical continuity. Based on the available evidence, it is likely that the airplane’s fuel supply was exhausted due to the pilot’s inadequate fuel planning, leading to a loss of engine power and forced landing. The airplane was not equipped with a fuel quantity gauge, which likely contributed to the pilot’s lack of awareness of the airplane’s low fuel state.

Factual narrative

On June 19, 2022, about 1030 central daylight time, a Smith Miniplane DSA-1, N208C, was substantially damaged when it was involved in an accident near Union, Nebraska. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot stated that, while cruising about 1,000 ft above ground level, the engine lost power. He landed the airplane into a wooded area, which resulted in substantial damage to both wings, the empennage, and fuselage. Post-accident examination revealed that no fuel was present in the fuel line from the engine-driven pump to the carburetor. The carburetor bowl was completely dry and clean, with a small amount of fuel in the accelerator pump cavity. The fuel tank was empty when viewed with a borescope, and the fuel selector valve was in the open position. No anomalies were noted with the fuel cap vent, filler neck, carburetor, cylinders, magnetos, or the engine’s mechanical continuity. The airplane was not equipped with a fuel quantity gauge.

Aircraft

Registration
N208C
Reported as
Smith Miniplane DSA-1
Category
Airplane, amateur-built
Serial number
GY-DSA-100
Built
1963
Airframe hours
378
Engine
Lycoming O-290-D2, 135 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 21, 2021
Departed
MLE · Omaha, NE
Destination
MLE · Omaha, NE
Airport
n/a

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
50
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
BasicMed
Last flight review
May 1, 2022
Seat
Single
Restraint
4-point
Flight hours
2,500 total · 20 in this make and model · 30 in the last 90 days · 10 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 13 knots, gusting 17
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 73 °F
Altimeter
30.08 inHg
Observed at
KPMV, 8 nm away
METAR
KPMV 191535Z AUTO 14013G17KT 10SM CLR 28/23 A3008 RMK AO2 T02750225 PWINO

Docket · 3

The files NTSB released with the investigation on November 8, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.7 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.