WPR13CA339

NTSB accident investigation · Piper PA-18 · Challis, ID · July 25, 2013

Accident · No injuriesData collectionFinal report
Date
July 25, 2013, 12:00 local (18:00 UTC)
Place
Challis, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N4249ZPiper PA-18
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report September 12, 2013
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20130725025619A
Case key
87579

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 pilot's failure to maintain directional control during the takeoff 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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotPiper PA-18-150: 160 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-150: 98 casesAll aircraft: 3,958 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 during the takeoff roll to the south he became distracted by a helicopter operation at the south end of the airport. It was about this time that he noticed the airplane yaw, which he over corrected for. The airplane subsequently departed the right side of the runway, then swerved back to the left. The right wing and right elevator impacted the ground and were substantially damaged. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that during the takeoff roll to the south he became distracted by a helicopter operation at the south end of the airport. It was about this time that he noticed the airplane yaw, which he over corrected for. The airplane subsequently departed the right side of the runway, then swerved back to the left. The right wing and right elevator impacted the ground and were substantially damaged. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N4249Z
Reported as
Piper PA-18 (150)
Category
Airplane
Serial number
18-8478
Airframe hours
7,670
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Frank O Blomquist
Registered owner
Frank O Blomquist
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 1, 2013 · 9 hours before
Departed
TVY · Erda, UT
Destination
1U1 · Moose Creek, ID
Airport
LLJ · Challis Airport, runway 16, 4,600 × 60 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
67
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
July 16, 2013
Seat
Front
Flight hours
1,283 total · 783 in this make and model · 1,283 as pilot in command · 5 in the last 90 days · 5 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 34 °F
Altimeter
30.19 inHg
Observed at
LLJ

Docket · 2

The files NTSB released with the investigation on August 28, 2013, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.9 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.

Other investigations on N4249Z · 1

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