WPR14LA265

NTSB accident investigation · Piper PA 18-135 · Turner, OR · June 15, 2014

Accident · No injuriesLimited investigationFinal report
Date
June 15, 2014, 12:00 local (19:00 UTC)
Place
Turner, OR
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N949JPPiper PA 18-135
Defining event
Landing-landing roll: Landing gear collapse
Weather
Visual (VMC) · Day
Status
Completed · report December 15, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
Case key
89516

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 collapse of the left main landing gear during landing roll for reasons that could not be determined because the pilot would not make the airplane available for a postaccident examination.

Findings · 3

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.

Not determinedNot determined › Not determined · Unknown/Not determinedAll aircraft: 2,247 casesProbable cause
Landing gear system: main landing gearAircraft › Aircraft systems · FailureAll aircraft: 241 casesProbable cause
Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Attain/maintain not possibleAll 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 of the amphibious float-equipped airplane was landing at his private airstrip following a personal local flight. During the landing roll, the left amphibious float's main wheel collapsed/retracted. The pilot said following the collapse of the wheel the airplane pulled hard to the left, which he was not able to control with right brake and rudder. The airplane departed the runway to the left, the float support structure collapsed, and the right wing was substantially damaged when it struck the ground. Prior to the collapse of the left wheel the pilot reported no known mechanical problems with the airplane.

Factual narrative

On June 15, 2014, about 1200 Pacific daylight time, an amphibious float-equipped Piper PA-18-135 airplane, N949JP, was substantially damaged during the landing roll at a private airstrip near Turner Oregon. The airplane was registered to and operated by the private pilot as a visual flight rules (VFR) personal local flight under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed, and no flight plan had been filed. The solo pilot was not injured. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on June 25, the pilot said that during the landing roll, the left amphibious float's main wheel collapsed/retracted. Following the collapse of the wheel the airplane pulled hard to the left, which he was not able to control with right brake and rudder. The airplane departed the runway to the left, the float support structure collapsed, and the right wing struck the ground. The right wing sustained structural damage from the lift strut outboard. Prior to the collapse of the left wheel there were no known mechanical problems with the airplane. A Federal Aviation Administration (FAA) aviation safety inspector examined the airplane at the accident site, and said marks on the runway were consistent with the pilot's claim of the left wheel collapsing, and the keel of the left float dragging on the runway. The inspector provided the IIC with photographs of the runway marks and the damage to the airplane. He was unable to examine the collapsed wheel during the initial examination, due to its position in the wreckage. The pilot did not submitted the NTSB 6120.1 PILOT/OPERATOR AIRCRAFT ACCIDENT/INCIDENT REPORT form, after multiple requests. The pilot has not complied with FAA requests to present the airplane's log books, and his personal flight logbooks for examination. The pilot did not make the airplane available for a postaccident examination.

Aircraft

Registration
N949JP
Reported as
Piper PA 18-135 (NO SERIES)
Category
Airplane
Serial number
18-3363
Built
1953
Engine
Lycoming O-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Curtright William Ames
Registered owner
Curtright William Ames
Airworthiness certificate
Standard, Normal
Departed
21OG · Turner, OR
Destination
21OG · Turner, OR
Airport
21OG · Ames, runway 14, 1,800 × 40 ft, asphalt

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
70
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 3, With waivers/limitations
Seat
Front
Flight hours
100 total · 100 in this make and model

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None

Docket · 4

The files NTSB released with the investigation on October 6, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 539 KB in all.