DEN88FA170

NTSB accident investigation · Beech B23 · Cimarron, NM · August 2, 1988

Accident · FatalField investigationFinal report
Date
August 2, 1988, 14:00 local (20:00 UTC)
Place
Cimarron, NM
Injuries
1 fatal
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N4006TBeech B23
Weather
Visual (VMC) · Day
Status
Completed · report June 25, 1990
Report
Approved by Office Director
FAA report
19880802071669A
Case key
17381

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 to properly preflight his aircraft in accordance with the procedures provided in the operators handbook thus causing the engine to lose power following takeoff due to fuel contamination caused by water.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - nonmechanicalTakeoff - initial climb
Fuel system,cap - deterioratedCause
Fluid,water - fuelCause
Aircraft preflight - poorPilot in commandCause
Forced landingDescent - emergency
In flight collision with terrain/waterManeuvering
Planned approach - poorPilot in commandCause
Maneuver - improperPilot in commandCause

Analysis

This accident occurred as the plt was attempting to return to the airport after a partial loss of eng power. Witnesses reported that after starting the eng the pilot taxied to the end of the runway and the eng quit. After draining the sumps the eng restarted after several attempts. The acft then departed and the witnesses left the airport. No one saw the acdt. The wreckage was found about 3 hrs later. The acft had been parked at the airport for 11 days with fuel tanks partially filled. Fuel tank cap seals were deteriorated and several rain showers had occurred at the airport during the 11 days. Water was found in the fuel tanks during the wreckage examination.

Aircraft

Registration
N4006T
Reported as
Beech B23
Category
Airplane
Serial number
N-1113
Airframe hours
1,762
Engine
Lycoming O-360-A2G, 180 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Thomas Brooks Chartered
Registered owner
Thomas Brooks Chartered
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · October 1, 1987 · 10 hours before
Departed
E85 · Cimarron
Destination
RTN · Raton, NM
Airport
E85 · Philmont Scout Ranch, runway 6, 4,000 × 50 ft, dirt

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
49
Certificate
Private
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
1,071 total · 141 in this make and model · 902 as pilot in command · 2 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
30° at 4 knots
Visibility
20 statute miles
Lowest ceiling
4,000 ft broken
Temperature
79 °F, dew point 55 °F
Altimeter
30.00 inHg
Observed at
LVS, 50 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.