DEN01LA121

NTSB accident investigation · Griffith-Boyd Lancair 360 · La Junta, CO · July 6, 2001

Accident · No injuriesLimited investigationFinal report
Date
July 6, 2001, 10:00 local (16:00 UTC)
Place
La Junta, CO
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N15EGGriffith-Boyd Lancair 360
Weather
Visual (VMC) · Day
Status
Completed · report October 23, 2001
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20010706020649A
Case key
52660

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

a wheels-up landing due to an uncommanded gear retraction resulting from a short circuit of the landing gear electrical wiring.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Wheels up landingLanding - flare/touchdown
Gear extension - performedPilot in command
Electrical system,electric wiring - shortedCause
Gear retraction - not selectedCause
Object - animal(s)

Analysis

When the pilot slowed the airplane and extended the landing gear, he heard the usual loud aerodynamic noise and observed three green lights indicating the landing gear was down and locked. Instead of touching down on its wheels, the airplane landed wheels up. Postaccident inspection revealed all three wheels were in their respective wheel wells. The main landing gear doors were partially open, and there was hydraulic pressure on the right inboard door. The landing gear control was confirmed to be in the DOWN position. The landing gear UP RELAY was hot to the touch. What appeared to be the beginning of a mouse nest was noted in the center console where the gear, flap, starter, and power wires pass.

Factual narrative

On July 6, 2001, approximately 1000 mountain daylight time, a Griffith-Boyd Lancair 360, N15EG, registered to and operated by the pilot, was substantially damaged during a wheels-up landing at La Junta Municipal Airport, La Junta, Colorado. The private pilot-in-command and the commercial flight instructor-passenger were not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the personal flight being conducted under Title 14 CFR Part 91. The flight originated approximately 0800.

The following is based on the pilot's accident report, written statement, and several telephone conversations. The pilot was flying the airplane. In preparation for landing, he slowed the airplane and extended the landing gear. He heard the usual loud aerodynamic noise and observed three green lights indicating the landing gear was down and locked. However, during the landing, instead of touching down on the wheels, the pilot heard a loud scraping noise and the airplane veered slightly to the right. It traveled 300 feet on the runway and another 300 feet on gravel next to the runway before coming to a halt in a ditch. There was damage to the fuselage skin and bulkeads.

The pilot inspected the airplane and found all three wheels were in their respective wheel wells. The main landing gear doors were partially open, and there was hydraulic pressure on the right inboard door. He rechecked and found the landing gear control in the DOWN position. He suspected that when the airplane touched down, the landing gear retracted and he submitted evidence to support his conclusions. He found the UP RELAY to be hot to the touch even though the gear switch was in the down position. He noted what appeared to be the beginning of a mouse nest in the center console where the gear, flap, starter, and power wires pass.

Aircraft

Registration
N15EG
Reported as
Griffith-Boyd Lancair 360
Category
Airplane, amateur-built
Serial number
727-320-570FB
Airframe hours
194
Engine
Lycoming O-360-H186D, 205 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Donald J. Ryan
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 5, 2000 · 12 hours before
Departed
LHX · La Junta, CO
Destination
LHX · La Junta, CO
Airport
LHX · La Junta Municipal, runway 26, 6,848 × 100 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
75
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
250 total · 79 in this make and model · 173 as pilot in command · 9 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
91 °F, dew point 45 °F
Altimeter
30.03 inHg
Observed at
LHX

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 N15EG · 1

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