CEN09CA045

NTSB accident investigation · Hartter Lenny J Bearhawk · Mack, CO · November 1, 2008

Accident · No injuriesData collectionFinal report
Date
November 1, 2008, 16:35 local (23:35 UTC)
Place
Mack, CO
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N3119XHartter Lenny J Bearhawk
Defining event
Landing-landing roll: Landing gear collapse
Weather
Visual (VMC) · Day
Status
Completed · report May 12, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Salt Lake City FSDO
FAA report
20081101849749A
Case key
69384

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 which resulted in the pilot's failure to maintain directional control.

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.

Landing gear system: main landing gearAircraft › Aircraft systems · Capability exceededHartter Lenny J BEARHAWK: 1 caseAll aircraft: 241 casesProbable cause
Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedHartter Lenny J BEARHAWK: 1 caseAll aircraft: 1,269 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 private pilot was landing when he used right rudder to correct for drift and inadvertently applied uneven right braking. The left main gear on the experimental amateur built airplane then collapsed causing the left wing and the propeller to strike the runway. There was substantial damage to the left wing, but no injuries to the solo pilot.

Factual narrative

The private pilot was landing the homebuilt airplane when he used right rudder to correct for drift, and he inadvertently applied uneven right braking. Shortly thereafter, the left main gear then collapsed causing the left wing and the propeller to strike the runway. There was substantial damage to the left wing, but no injuries to the solo pilot.

Aircraft

Registration
N3119X
Reported as
Hartter Lenny J Bearhawk
Category
Airplane, amateur-built
Serial number
1
Airframe hours
59
Engine
Lycoming O-540-E4B5, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · August 9, 2008 · 26 hours before
Departed
C07 · Mack, CO
Destination
C07 · Mack, CO
Flight plan
Unknown
Airport
C07 · Mack Mesa Airport, runway 25, 2,600 × 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
53
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
May 19, 2008
Seat
Left
Flight hours
119 total · 34 in this make and model · 21 as pilot in command · 34 in the last 90 days · 14 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
280° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
86 °F, dew point 23 °F
Altimeter
30.14 inHg
Observed at
KGJT, 18 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.