LAX94LA269

NTSB accident investigation · Cessna 172N · Schurz, NV · June 30, 1994

Accident · Serious injuriesLimited investigationFinal report
Date
June 30, 1994, 14:25 local (21:25 UTC)
Place
Schurz, NV
Injuries
1 serious, 3 minor
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N733AACessna 172N
Weather
Visual (VMC) · Day
Status
Completed · report January 12, 1995
Report
Approved by Office Director
FAA report
19940630019449A
Case key
28786

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 inability to maintain an adequate airspeed in the takeoff initial climb due to an encounter with a windshear.

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 control - in flightTakeoff - initial climb
Weather condition - windshearCause
Airspeed(vs) - not maintainedPilot in commandCause
Stall/mush - encounteredPilot in command
In flight collision with objectDescent - uncontrolled
Object - utility pole
Object - wire,transmission

Analysis

The passenger seated in the right front seat holds an airline transport pilot certificate and is an airline pilot. The witness reported that he did not observe a windsock on the airstrip and they had to gauge the wind conditions before takeoff by looking at the trees around the airport. He estimated that the winds were from 310 degrees at 10 knots with higher gusts to over 20 knots. Both he and the pilot stated in separate interviews that the takeoff was normal until the aircraft achieved about 100 feet agl. At that point, the aircraft encountered a 'very turbulent boundary layer' and the airspeed indicator 'instantaneously went from 80 to 30 knots and the stall horn came on continuously.' Both of the pilots stated that they could not recover the airspeed and the aircraft descended to impact with a telephone pole and wire at the north airport boundary.

Factual narrative

On June 30, 1994, at 1425 Pacific daylight time, a Cessna 172N, N733AA, collided with telephone wires and poles on takeoff from the Schurz, Nevada, airport. The aircraft was operated by Nevada Cal Aero of Reno, Nevada, and was rented by the pilot for a cross-country personal flight. Visual meteorological conditions prevailed and no flight plan was filed for the operation. The aircraft was destroyed in the collision sequence. The certificated private pilot and two passengers sustained minor injuries; however, one passenger incurred serious injuries. The flight was originating at the time of the accident as a return flight to Reno, Nevada.

According to Sheriff's Department officers who responded to the accident site, the pilot stated in an interview that during the takeoff initial climb the aircraft encountered a windshear condition and descended into telephone wires and poles at the departure end of the runway. The responding sheriff's deputies stated that the outside air temperature was about 95 degrees and that the winds were variable and gusty.

The passenger seated in the right front seat holds an airline transport pilot certificate and is an airline pilot. The witness reported that he did not observe a windsock on the airstrip and they had to gauge the wind conditions before takeoff by looking at the trees around the airport. He estimated that the winds were from 310 degrees at 10 knots with higher gusts to over 20 knots. Both he and the pilot stated in separate interviews that the takeoff was normal until the aircraft achieved about 100 feet agl. At that point, the aircraft encountered a "very turbulent boundary layer" and the airspeed indicator "instantaneously went from 80 to 30 knots and the stall horn came on continuously." Both of the pilots stated that they could not recover the airspeed and the aircraft descended to impact with a telephone pole and wire at the north airport boundary.

Aircraft

Registration
N733AA
Reported as
Cessna 172N
Category
Airplane
Serial number
17268135
Airframe hours
5,580
Engine
Lycoming O-320-E2D, 150 horsepower, reciprocating
Damage
Destroyed
Flight
Personal · Part 91
Operator
Nevada Cal Aero
Registered owner
Lisa A. Schilling
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 5, 1994
Departed
3Q1
Destination
RNO · Reno, NV
Airport
3Q1 · Schurz, runway 34, 3,200 × 45 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
31
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
227 total · 131 in this make and model · 5 in the last 90 days · 1 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 10 knots, gusting 20
Visibility
50 statute miles
Temperature
95 °F

FAA reports on this event · 1

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