LAX03LA091

NTSB accident investigation · Cessna 172S · Scottsdale, AZ · February 21, 2003

Accident · Serious injuriesLimited investigationFinal report
Date
February 20, 2003, 17:20 local (Feb 21, 2003, 00:20 UTC)
Place
Scottsdale, AZ
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3550XCessna 172S
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20030220002969A
Case key
56525

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 student pilot's inadequate compensation for the existing crosswind conditions and failure to maintain directional control during the touch-and-go takeoff. A factor was his improper use of (failure to reduce) the throttle and normal brakes during the accident sequence.

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 - on ground/waterTakeoff - roll/run
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - crosswind
Directional control - not maintainedPilot in commandCause
Ground loop/swerve
On ground/water collision with objectTakeoff - roll/run
Object - hangar/airport building
Object - sign

Analysis

While attempting to do a touch-and-go takeoff with a 60-degree right 10-knot crosswind, the student pilot advanced the throttle to the full forward position, lost directional control of the airplane, and it veered off the runway and struck a runway sign and a hangar. He made unsuccessful attempts to correct the airplane's direction of travel and stop the airplane with brakes. The student pilot stated that as the airplane was veering off the runway it was at or near flying speed and he concentrated on trying to steer the airplane back on course. The student pilot did not attempt to abort the takeoff. A FAA inspector examined the airplane and noted no mechanical deficiencies with the directional controls, braking, or engine power control systems.

Factual narrative

On February 20, 2003, about 1720 mountain standard time, a Cessna 172S, N3550X, collided with a hangar while attempting to do a touch-and-go takeoff from runway 21 at the Scottsdale Airport (SDL), Scottsdale, Arizona. Arizona Flight Works operated the rental airplane under the provisions of 14 CFR Part 91. The airplane sustained substantial damage. The student pilot, the sole occupant, received serious injuries. Visual meteorological conditions prevailed for the local area instructional flight, and no flight plan had been filed. The flight departed SDL about 1635, and was scheduled to terminate at SDL.

In the pilot's written statement he stated that he had flown 45 minutes in the practice area, and was returning to SDL to perform touch-and-go takeoffs and landings. He contacted SDL tower and received a clearance to perform "touch-and-gos" on runway 21. After landing, he applied full throttle to takeoff; however, the airplane veered abruptly to the left. The student pilot indicated that the airplane's airspeed was "close to, or at, flying speed." He stated that he continued to apply pressure to the right rudder to offset the airplane's leftward direction, with no response. He stated that his attempts to compensate for the airplane's direction of travel were unsuccessful. The airplane struck a runway sign and then a hangar. The pilot did not indicate that he reduced the throttle or attempted to do a takeoff abort at any time during the accident sequence.

A Federal Aviation Administration (FAA) inspector interviewed the certified flight instructor (CFI) who stated that the student had about 40 hours of total flight time, and it was the student's third solo flight. The CFI further reported that the day of the accident he had flown the accident airplane with no mechanical anomalies encountered.

The FAA inspector examined the airplane and noted no mechanical deficiencies with the airframe directional control, braking, or engine power control systems.

Aircraft

Registration
N3550X
Reported as
Cessna 172S
Category
Airplane
Serial number
172S8894
Airframe hours
777.9
Engine
Lycoming IO-360-L2A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Arizona Flight Works
Registered owner
Steve Dahlgren
Airworthiness certificate
Standard, Normal
Last inspection
Continuous airworthiness · January 31, 2003 · 36.6 hours before
Departed
SDL · Scottsdale, AZ
Destination
SDL
Airport
SDL · Scottsdale, runway 21, 8,249 × 100 ft, asphalt

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
Student pilot
Age
38
Injuries
Serious
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
53 total · 53 in this make and model · 3 as pilot in command · 2 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
270° at 10 knots, gusting 16
Visibility
10 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 37 °F
Altimeter
29.75 inHg
Observed at
SDL

FAA reports on this event · 1

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