CEN14LA259

NTSB accident investigation · Sibley Glasair · Midlothian, TX · May 24, 2014

Accident · Serious injuriesLimited investigationFinal report
Date
May 24, 2014, 10:49 local (15:49 UTC)
Place
Midlothian, TX
Injuries
1 serious
Damage
Destroyed
Phase of flight
Initial climb
Aircraft
N4VXSibley Glasair
Defining event
Initial climb: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report February 3, 2016
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration; North Texas FSDO
FAA report
20140524015369A
Case key
89295

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 pilot’s failure to maintain lateral control during the initial climb. Contributing to the accident was the pilot’s failure to obtain sufficient training and experience to operate the high-performance airplane.

Findings · 4

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.

Performance/control parameters: lateral/bank controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedSibley Alfred E GLASAIR: 1 caseAll aircraft: 390 casesProbable cause
Experience/qualificationsPersonnel issues › Experience/knowledge · PilotSibley Alfred E GLASAIR: 1 caseAll aircraft: 18 casesProbable cause
TrainingPersonnel issues › Experience/knowledge · PilotSibley Alfred E GLASAIR: 1 caseAll aircraft: 8 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 reported that, during the initial climb, the high-performance airplane's left wing dropped and that the airplane then turned toward the left side of the runway. The pilot applied corrective control inputs but was unsuccessful in regaining airplane control. The airplane subsequently impacted the ground; a postcrash fire ensued, which destroyed the airplane. Postaccident examination of the airplane confirmed flight control continuity. The pilot stated that he did not have enough time, training, or experience to be flying the high-performance airplane.

Factual narrative

On May 24, 2014, at 1049 central daylight time, an experimental amateur-built Sibley Glasair, N4VX, impacted the runway during takeoff from Eagle's Nest Estates Airport, Midlothian, Texas, when the left wing struck the runway surface. The airplane was destroyed by post-crash fire. The pilot sustained serious injuries. The airplane was registered to and operated by the pilot under 14 CFR Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight that was not operating on a flight plan. The flight was originating at the time of the accident and was destined for Mid-Way Regional Airport, Midlothian, Texas. The pilot stated that soon after the airplane lifted off there was an unexpected left wing drop. The airplane's flight path changed toward the left side of the runway. The pilot applied corrective control input to change the flight path but the control input was "marginally successful." A few seconds later, the airplane impacted the ground and came to rest on the airport ramp. Initially there was no fire, but fuel pouring from the header tank soon ignited. Examination of the airplane by a Federal Aviation Administration (FAA) Inspector confirmed flight control continuity. The pilot stated to FAA Inspectors during a postaccident interview that he did not have enough time, training, or experience to be flying such a high performance aircraft.

Aircraft

Registration
N4VX
Reported as
Sibley Glasair
Category
Airplane, amateur-built
Serial number
301
Built
1985
Airframe hours
1,140
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Destroyed
Fire
On-Ground
Flight
Personal · Part 91
Operator
Pilot
Registered owner
Pilot
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · March 4, 2014
Departed
2TS5 · Midlothian, TX
Destination
JWY · Midlothian, TX
Airport
2TS5 · Eagle's Nest Estates Airport, runway 17, 3,200 × 32 ft, concrete

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
59
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
October 25, 2013
Seat
Left
Restraint
3-point
Flight hours
580 total · 14 in this make and model · 580 as pilot in command · 15 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
77 °F, dew point 64 °F
Altimeter
30.04 inHg
Observed at
GKY, 13 nm away

Docket · 2

The files NTSB released with the investigation on December 29, 2015, on NTSB’s docket system: statements, records, photos and specialists’ reports. 669 KB 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.