CEN14LA245

NTSB accident investigation · Piper PA 28-181 · Yuma, CO · May 19, 2014

Accident · No injuriesLimited investigationFinal report
Date
May 19, 2014, 09:30 local (15:30 UTC)
Place
Yuma, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9631CPiper PA 28-181
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 5, 2014
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20140519007479A
Case key
89234

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 after the airplane encountered a wind gust during takeoff roll. Contributing to the accident was the pilot inadvertently using a runway that resulted in a gusty tailwind condition.

Findings · 4

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-28-181: 53 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-28-181: 37 casesAll aircraft: 3,958 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Awareness of conditionPiper PA-28-181: 5 casesAll aircraft: 594 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 after referencing the airport windsock, which indicated a variable and gusty wind condition, he decided to takeoff on runway 16. The airplane was on takeoff roll when, before achieving liftoff, it encountered a wind gust that raised the right wing. The pilot was unable to correct for the wind gust before the airplane departed the left side of the runway and impacted a drainage ditch. He reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. A review of wind data readings, taken during the hour before the accident, established that the wind direction and speed had been from the north at 13-15 knots with recorded wind gusts between 20-26 knots. Additionally, the wind speed had increased throughout the same time period. The use of runway 16 would have resulted in a tailwind condition and an increased ground speed required to achieve a normal liftoff. The higher ground speed likely contributed to the pilot's inability to maintain directional control after the airplane encountered the wind gust.

Factual narrative

On May 19, 2014, about 0930 mountain daylight time, a Piper model PA-28-180 airplane, N9631C, was substantially damaged when it departed the runway during takeoff at Yuma Municipal Airport (2V6), Yuma, Colorado. The student pilot was not injured. The airplane was registered to and operated by Heartland Aviation Incorporated under the provisions of 14 Code of Federal Regulations Part 91 without a flight plan. Day visual meteorological conditions prevailed for the student solo cross-country flight that was destined for Alliance Municipal Airport (AIA), Alliance, Nebraska.The student pilot reported that after referencing the airport windsock, which indicated a variable and gusty wind condition, he decided to takeoff on runway 16 (4,200 feet by 75 feet, concrete). He stated that before achieving liftoff, the airplane encountered a wind gust that raised the right wing. He was unable to correct for the wind gust before the airplane departed the left side of the runway and descended into a drainage ditch. The airplane lower forward fuselage and engine mount sustained substantial damage when the nose gear collapsed. He reported no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. At 0932, a local weather station, located in Yuma, Colorado, reported the wind direction was from 001 degrees at 18 knots, with 26 knot wind gusts. A review of wind data readings, taken during the hour before the accident, established that the wind direction and speed had been from the north at 13-15 knots with recorded wind gusts between 20-26 knots. Additionally, the wind speed had increased throughout the same time period. The nearest aviation weather reporting station was at the Wray Municipal Airport (2V5), located about 25 miles east of the accident site. At 0935, the 2V5 weather observing system reported: wind from 340 degrees at 18 knots, gusting 24 knots; 10 miles visibility; clear sky conditions; temperature 23 degrees Celsius; dew point 10 degrees Celsius; and an altimeter setting of 29.70 inches-of-mercury.

Aircraft

Registration
N9631C
Reported as
Piper PA 28-181 (181)
Category
Airplane
Serial number
28-7890431
Built
1978
Airframe hours
3,658
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Heartland Aviation Inc.
Registered owner
Heartland Aviation Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 2013 · 90 hours before
Departed
2V6 · Yuma, CO
Destination
AIA · Alliance, NE
Airport
2V6 · Yuma Municipal Airport, runway 16, 4,200 × 75 ft, concrete
Equipment
Stall warning system

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
32
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
28 total · 10 in this make and model · 9 as pilot in command · 28 in the last 90 days · 17 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
340° at 18 knots, gusting 24
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 50 °F
Altimeter
29.70 inHg
Observed at
2V5, 25 nm away

Docket · 4

The files NTSB released with the investigation on May 22, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 954 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.