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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

July 24, 1999 · Beech D17S · N217SD

Arco, ID

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 24, 1999
Injury Outcomes
No injuries (1 uninjured)
Location
Arco, ID
Aircraft
Beech D17S
Tail Number
N217SD
Operator
Todd J Therp
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA99LA127

The pilot had just completed a flyby at a local air show and was preparing to land. While on final approach to runway 24, the pilot crabbed the aircraft to compensate for a cross wind. During the crab, the aircraft's engine began to run rough and eventually quit. The fuel quantity gauge for the main fuel tank (the selected fuel tank) read one-quarter full. The pilot switched from the main fuel tank to the full auxiliary tank and cycled the primer, but was unable to restart the engine. The aircraft touched down on the edge of a gravel pit, approximately 200 feet short of the runway and nosed over. The pilot estimated that the aircraft's main fuel tank contained approximately one gallon of fuel at the time of the accident. The pilot reported no mechanical malfunctions or failures with the aircraft at the time of the accident. There was no evidence to indicate a preexisting fuel leak.

NTSB Probable Cause

Fuel starvation which resulted in a loss of power. The pilot's improper management of fuel was a factor.

Full Narrative

On July 24, 1999, about 1100 mountain daylight time, a Beech D17S, N217SD, operated by the pilot as a 14CFR91 personal flight, was substantially damaged when it collided with the ground and nosed over approximately 200 feet short of Arco-Butte Airport, Arco, Idaho. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The private pilot, the sole occupant of the aircraft, was uninjured. The flight originated from Arco-Butte Airport approximately 15 minutes prior to the accident. During a telephone interview and subsequent written statement, the pilot reported that he had just completed a flyby at a local air show and was preparing to land. He stated that while on final approach to runway 24, he crabbed the aircraft to compensate for a cross wind. During the crab, the aircraft's engine began to run rough and eventually quit. The pilot stated the fuel quantity gauge for the main fuel tank (the selected fuel tank) read one-quarter full. He switched from the main tank to the full auxiliary fuel tank and cycled the primer, but was unable to restart the engine. The aircraft touched down on the edge of a gravel pit, approximately 200 feet short of the runway and nosed over. The pilot estimated that the aircraft's main fuel tank contained approximately one gallon of fuel at the time of the accident. In a written statement, the pilot reported that there were no mechanical malfunctions or failures with the aircraft at the time of the accident. Also, the pilot reported there was no evidence to indicate a preexisting fuel leak.

Flight

Event TypeAccident
Event Time11:00 MDT
Nearest AirportArco-Butte County (1nm ENE)
Runway24
Runway Length6600 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBeech D17S
Tail NumberN217SD
Aircraft CategoryAir
DamageSubstantial
OperatorTodd J Therp
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsP&W · R985-AN-14B · Reciprocating · 450
Seats5

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 36 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind225° @ 10 kt, gusting 12 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data