GAA19CA512

NTSB accident investigation · Piper PA28 · Chickasha, OK · August 12, 2019

Accident · No injuriesData collectionFinal report
Date
August 12, 2019, 11:00 local (16:00 UTC)
Place
Chickasha, OK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5600UPiper PA28
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report February 11, 2020
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
FAA
FAA report
20190812014819A
Case key
100143

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The student pilot's failure to maintain crosswind correction during landing and his subsequent loss of directional control during the landing roll, which resulted in a runway excursion and impact with uneven terrain.

Findings · 5

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/maintainedPiper PA-28-140: 40 casesAll aircraft: 3,958 casesProbable cause
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28-140: 2 casesAll aircraft: 184 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotPiper PA-28-140: 103 casesAll aircraft: 9,295 casesProbable cause
Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-28-140: 10 casesAll aircraft: 1,008 casesProbable cause
Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Effect on operationPiper PA-28-140: 4 casesAll aircraft: 270 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 approach to land, the airplane encountered turbulence and that he felt that the wind was from "more than one direction," and on final, he decided to use only two notches of flaps. He landed the airplane "slightly sideways," and it then veered right, exited the runway, and impacted a "small hump in the grass." He was afraid of tipping the airplane with too much left rudder, so he delayed applying left rudder until reaching the top of the hump. The chief pilot reported that the student "lost control," that the airplane's right wing struck a runway sign, and that its left flap struck a runway light. The airplane sustained substantial damage to the right wing. The chief 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 5 minutes before the accident, the wind was from 230° at 10 knots, gusting to 16 knots. The student landed the airplane on runway 18.

Factual narrative

The solo student pilot reported that, during approach to land, the airplane encountered turbulence and he felt that the wind was from "more than one direction," and on final, he decided to use only two notches of flaps. He landed the airplane "slightly sideways" and the airplane veered right. The airplane exited the runway to the right toward a "small hump in the grass." He was afraid of tipping the airplane with too much left rudder, so he delayed left rudder input until on top of the "hump." He added left rudder and returned to the runway. The chief pilot reported that the student "lost control" and struck a runway sign with the right wing and a runway light with the left flap. The airplane sustained substantial damage to the right wing. The chief 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 5 minutes before the accident, the wind was from 230° at 10 knots, gusting 16 knots. The student landed the airplane on runway 18.

Aircraft

Registration
N5600U
Reported as
Piper PA28 (140)
Category
Airplane
Serial number
28-22203
Built
1966
Airframe hours
12,628
Engine
Lycoming O-320-D2A, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Chickasha Wings Inc
Registered owner
Chickasha Wings Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 13, 2019
Departed
DUC · Duncan, OK
Destination
CHK · Chickasha, OK
Airport
CHK · Chickasha Muni, runway 18, 5,101 × 100 ft, concrete
Equipment
None

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
33
Injuries
None
Certificate
Student
Medical
Class 3, Without waivers/limitations
Seat
Left
Flight hours
35 total · 35 in this make and model · 7 as pilot in command · 35 in the last 90 days · 14 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 10 knots, gusting 16
Visibility
10 statute miles
Lowest ceiling
None
Temperature
97 °F, dew point 66 °F
Altimeter
29.87 inHg
Observed at
KCHK

Docket · 3

The files NTSB released with the investigation on October 29, 2019, on NTSB’s docket system: statements, records, photos and specialists’ reports. 4.4 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.