WPR11CA212

NTSB accident investigation · Piper PA-18-150 · Chandler, AZ · April 27, 2011

Accident · No injuriesData collectionFinal report
Date
April 27, 2011, 14:00 local (21:00 UTC)
Place
Chandler, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9683PPiper PA-18-150
Defining event
Landing-landing roll: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report August 3, 2011
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20110427007839A
Case key
78986

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 failure to maintain directional control during the landing roll.

Findings · 2

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-18-150: 98 casesAll aircraft: 3,958 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 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 pilot reported that she was practicing three-point takeoffs and landings in a tailwheel-equipped airplane. The first three takeoffs and landings were uneventful. During the landing roll of the fourth landing, the airplane began to veer to the left. The pilot applied full right rudder; however, the airplane continued to the left and exited the runway onto a dirt surface. As the pilot added full power to attempt to avoid a taxiway sign and return to the runway, the airplane briefly became airborne before pitching down and pivoting to the right. Subsequently, the left main landing gear collapsed and the left wing struck the ground resulting in substantial damage. The airplane skidded nose down until coming to a rest. The wind was reported to be from 110 degrees at 7 knots at the time of the accident. The pilot reported no mechanical failures or malfunctions that would have precluded normal flight.

Factual narrative

The pilot reported that she was practicing three-point touch-and-go landings in a tailwheel equipped airplane. The first three touch-and-goes were uneventful. During the landing roll of the fourth landing, the airplane began to veer to the left. The pilot applied full right rudder, however, the airplane continued to the left and exited the runway onto a dirt surface. As the pilot added full power to attempt to avoid a taxiway sign and reenter the runway surface, the airplane briefly became airborne before pitching down and pivoting to the right. Subsequently, the left main landing gear collapsed and the left wing struck the ground resulting in substantial damage. The airplane skidded nose down until coming to a rest. At the time of the accident, the wind was reported from 110 degrees at 7 knots. The pilot reported no mechanical failures or malfunctions that would have precluded normal flight.

Aircraft

Registration
N9683P
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7509026
Airframe hours
3,830
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Chandler Air Services Inc.
Registered owner
Airspeed Moore LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 8, 2011 · 33 hours before
Departed
CHD · Chandler, AZ
Destination
CHD · Chandler, AZ
Airport
CHD · Chandler Municipal Airport, runway 04L, 4,401 × 75 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
Pilot
Age
62
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
April 23, 2011
Seat
Front
Flight hours
622 total · 29 in this make and model · 389 as pilot in command · 29 in the last 90 days · 9 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
110° at 7 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 16 °F
Altimeter
29.96 inHg
Observed at
CHD

Docket · 1

The files NTSB released with the investigation on May 19, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 444 KB 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.

Other investigations on N9683P · 1

Matched to the same aircraft by N-number and date.