WPR10LA468

NTSB accident investigation · Giboney Thunder Mustang · Reno, NV · September 19, 2010

Accident · Minor injuriesLimited investigationFinal report
Date
September 19, 2010, 16:00 local (23:00 UTC)
Place
Reno, NV
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N151GGiboney Thunder Mustang
Defining event
Maneuvering-low-alt flying: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report October 4, 2012
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20100919045839A
Case key
77381

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

Failure of a connecting rod bearing and two connecting rods, which resulted in a loss of engine power while maneuvering at low altitude.

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 he was flying as one of a group of seven airplanes in an air race, and, during lap four, the engine lost all power. The pilot increased altitude to 2,000 feet above ground level and entered the landing pattern but had to extend his downwind to avoid traffic still on the race course. The wind took him further away from the runway than he intended so that when he turned toward the runway, he could not complete the turn to the runway heading, and intercepted the runway on a 50-degree angle at an intersection with another runway. The airplane rolled across the intersection, onto a taxiway, and continued onto a dirt ramp before cartwheeling and coming to rest in the dirt about halfway between the taxiway and the runway. Postaccident examination of the engine found that a connecting rod bearing and two connecting rods in the engine fractured and separated, which resulted in the loss of engine power.

Factual narrative

On September 19, 2010, about 1600 Pacific daylight time, an experimental Giboney Thunder Mustang, N151G, collided with terrain during landing at Reno/Stead Airport, Reno, Nevada. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations (CFR) Part 91. The private pilot sustained minor injuries. The airplane sustained substantial damage to the wings, fuselage, and empennage. The local air race flight departed about 1545. Visual meteorological conditions prevailed, and no flight plan had been filed. The pilot was flying as one of a group of seven airplanes in a race at the Reno National Championship Air Races. He was passing pylon 5 on lap four when the airplane’s engine lost all power. He climbed the airplane to 2,000 feet above ground level (agl). Based on his position and the wind direction, he decided to land on runway 26. He entered the landing pattern, but had to extend his downwind to avoid traffic still on the race course. The wind took him further away from the runway than he intended. When he turned toward the runway, he had insufficient altitude to align with the runway. The pilot stated that the airplane was heading 210° when it touched down on the east side of the intersection of runway 26 and runway 14/32. The airplane rolled across the intersection and onto taxiway A1. The airplane continued across the taxiway onto a dirt ramp, which pitched the airplane up into the air, but below flying speed. He maintained full right rudder and full up elevator; the right wing dropped until it contacted the ground. The airplane cartwheeled twice, and the airplane came to rest in the dirt about halfway between taxiway A1 and runway 26. The pilot reported that a connecting rod bearing and two connecting rods fractured and separated.

Aircraft

Registration
N151G
Reported as
Giboney Thunder Mustang
Category
Airplane, amateur-built
Serial number
FITM024
Airframe hours
346
Engine
Falconer V-12, 1,000 horsepower, reciprocating
Damage
Substantial damage
Flight
Air race/show · Part 91
Operator
George A Giboney Jr
Registered owner
George A Giboney Jr
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 21, 2010 · 12 hours before
Departed
RTS · Reno, NV
Destination
RTS · Reno, NV
Airport
RTS · Reno Stead, runway 14, 9,000 × 150 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
67
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
June 18, 2010
Seat
Single
Flight hours
710 total · 268 in this make and model · 613 as pilot in command · 21 in the last 90 days · 8 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 19 knots, gusting 25
Visibility
10 statute miles
Lowest ceiling
18,000 ft broken
Temperature
75 °F, dew point 30 °F
Altimeter
29.90 inHg
Observed at
KRNO, 8 nm away

Docket · 1

The files NTSB released with the investigation on August 24, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 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.