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NTSB accident investigation · Hier James A Long EZ · Show Low, AZ · June 26, 2015

Accident · No injuriesData collectionFinal report
Date
June 26, 2015, 06:40 local (13:40 UTC)
Place
Show Low, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N793HHier James A Long EZ
Defining event
Landing-flare/touchdown: Part(s) separation from AC
Weather
Visual (VMC) · Day
Status
Completed · report September 11, 2015
Report
Approved by Office Director
NTSB office
General Aviation Accidents
Parties
Federal Aviation Administration
FAA report
20150626012629A
Case key
91570

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 right main landing gear leg fracture, which resulted in the landing gear wheel separation and a runway excursion.

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.

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 cruise phase of a cross country flight, the oil pressure and oil temperature indicator readings dropped to zero. The pilot decided to make a precautionary landing at a nearby airfield. The airplane touched down on the runway and the right main landing gear leg fractured just above the wheel attachment and the wheel separated from the airplane. The main landing gear leg collapsed and the airplane exited the right side of the runway. The airplane sustained substantial damage to the fuselage. According to the maintenance logbook entries, the right main landing gear leg had fractured at the point of a previous repair. The airplane had larger tires and brakes installed after the time of the repair to the landing gear leg. The cause of the fluctuations in the oil temperature gauge and oil pressure gauge were not the subject of this investigation. The pilot reported no preimpact mechanical failures or malfunctions, aside from the gauge indications, that would have precluded normal operation.

Factual narrative

The pilot reported that during the cruise phase of a cross country flight, the oil pressure and oil temperature indicator readings dropped to zero. The pilot decided to make a precautionary landing at a nearby airfield. The airplane touched down on the runway and the right main landing gear leg fractured just above the wheel attachment and the wheel separated from the airplane. The main landing gear leg collapsed and the airplane exited the right side of the runway. The airplane sustained substantial damage to the fuselage. According to the maintenance logbook entries, the right main landing gear leg had fractured at the point of a previous repair. The airplane had larger tires and brakes installed after the time of the repair to the landing gear leg. The cause of the fluctuations in the oil temperature gauge and oil pressure gauge was not the subject of this investigation. The pilot reported no preimpact mechanical failures or malfunctions, aside from the gauge indications, that would have precluded normal operation.

Aircraft

Registration
N793H
Reported as
Hier James A Long EZ
Category
Airplane, amateur-built
Serial number
926
Built
1984
Airframe hours
588
Engine
Lycoming O-290-G, 125 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · April 1, 2015
Departed
CHD · Chandler, AZ
Destination
LVS · Las Vegas, NM
Airport
SOW · Show Low Rgnl, runway 21, 3,938 × 60 ft, asphalt
Equipment
Electronic flight bag or handheld device

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
53
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
April 5, 2015
Seat
Front
Restraint
3-point
Flight hours
104 total · 2 in this make and model · 12 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
68 °F, dew point 45 °F
Altimeter
30.29 inHg
Observed at
KSOW

Docket · 7

The files NTSB released with the investigation on August 13, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 10.3 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.