GAA19CA542

NTSB accident investigation · Cessna 172 · Phoenix, AZ · September 12, 2019

Accident · No injuriesData collectionFinal report
Date
September 12, 2019, 06:30 local (13:30 UTC)
Place
Phoenix, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N796WWCessna 172
Defining event
Takeoff-rejected takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report March 17, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20190912013069A
Case key
100256

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 failure to maintain directional control during an aborted takeoff, which resulted in a runway excursion and impact with runway signs while attempting to maneuver back onto the runway.

Findings · 3

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172S: 66 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotCessna 172S: 206 casesAll aircraft: 9,295 casesProbable cause
Object/animal/substance: sign/markerEnvironmental issues › Physical environment · Effect on operationCessna 172S: 11 casesAll aircraft: 214 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 solo student pilot reported that, during takeoff, the airplane drifted left off the runway. He was concerned that the takeoff was unsafe, so he decided to abort the takeoff and landed the airplane in a gravel field adjacent to the runway. He applied the brakes to slow down and attempted to maneuver the airplane back onto the runway. The right main landing gear impacted a runway sign, and the airplane veered right, crossed the runway, impacted a second runway sign, and then came to rest in a gravel field. The airplane sustained substantial damage to the fuselage aft of the nosewheel and the right horizontal stabilizer. The student reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The solo student pilot reported that, during takeoff, the airplane drifted left off the runway. Concerned the takeoff was unsafe, he decided to abort the takeoff and landed the airplane in the gravel field adjacent to the runway. He used the brakes to slow down and attempted to maneuver the airplane back on the runway. The right main landing gear impacted a runway sign, and the airplane veered right. The airplane continued to veer right, crossed the runway, and impacted a second runway sign. The airplane came to rest in a gravel field. The airplane sustained substantial damage to the fuselage aft of the nose wheel and the right horizontal stabilizer. The student pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. The airport's automated weather observation station reported that, about the time of the accident, the wind was calm. The airplane was departing from runway 07.

Aircraft

Registration
N796WW
Reported as
Cessna 172 (S)
Category
Airplane
Serial number
172S8635
Built
2000
Airframe hours
12,240.8
Engine
Lycoming IO-360-L2A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Westwind School of Aeronautic
Registered owner
Coldwater Group Llc
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
100 hour · August 13, 2019
Departed
DVT · Phoenix, AZ
Destination
DVT · Phoenix, AZ
Airport
DVT · Phoenix Deer Valley, runway 07R, 8,196 × 100 ft, asphalt
Equipment
Stall warning system, ADS-B

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
30
Injuries
None
Certificate
Student
Medical
Class 1, With waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
35.5 total · 35.5 in this make and model · 35.5 in the last 90 days · 23.1 in the last 30 days · 2.7 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 54 °F
Altimeter
29.98 inHg
Observed at
KDVT

Docket · 2

The files NTSB released with the investigation on November 26, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.8 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.