ANC14CA023

NTSB accident investigation · Piper PA 18A 150 · Kenai, AK · April 22, 2014

Accident · No injuriesData collectionFinal report
Date
April 21, 2014, 19:05 local (Apr 22, 2014, 03:05 UTC)
Place
Kenai, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9299DPiper PA 18A 150
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 18, 2014
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
89116

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 loss of directional control during takeoff, resulting in a collision with terrain and ground loop.

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-18A 150: 18 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18A 150: 10 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 was taking off from a sloping beach in his tailwheel-equipped airplane. The pilot stated that the tide had come in, narrowing his takeoff path. During the takeoff roll, the airplane's right main landing gear tire hit an object on the beach, the airplane pivoted to the left, and the left wing struck a group of alders. The airplane ground looped, sustaining substantial damage to the right wing and horizontal stabilizer. The pilot reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Factual narrative

The pilot was taking off from a sloping beach in his tailwheel-equipped airplane. The pilot stated that the tide had come in, narrowing his takeoff path. During the takeoff roll, the airplane's right main landing gear tire hit an object on the beach, the airplane pivoted to the left, and the left wing struck a group of alders. The airplane ground looped, sustaining substantial damage to the right wing and horizontal stabilizer. The pilot reported that there were no preaccident mechanical anomalies with the airplane that would have precluded normal operation.

Aircraft

Registration
N9299D
Reported as
Piper PA 18A 150 (A150)
Category
Airplane
Serial number
18-6606
Built
1958
Airframe hours
3,017
Engine
Lycoming O-320 SERIES, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Last inspection
Annual · June 1, 2013 · 85 hours before
Departed
PABV · Chugiak, AK
Destination
Kenai, AK
Flight plan
VFR

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
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
April 11, 2014
Seat
Front
Restraint
4-point
Flight hours
174 total · 156 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 28 °F
Altimeter
29.93 inHg
Observed at
PAEN, 50 nm away

Docket · 1

The files NTSB released with the investigation on June 2, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 553 KB in all.

Other investigations on N9299D · 3

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