- Date
- August 9, 2008, 15:14 local (22:14 UTC)
- Place
- Oxnard, CA
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N51VSSmith Stewart S51D
- Defining event
- Approach-VFR pattern final: Loss of engine power (partial)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 12, 2009
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20080809845539A
- Case key
- 68664
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 loss of engine power for an undetermined reason.
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 the flight was made at a cruise altitude of 9,500 feet mean sea level (msl). As he neared his destination, he descended to 2,500 feet msl at low power with the mixture enrichened progressively. He entered the traffic pattern for runway 25 on the right base leg as instructed by the tower local controller. After turning final, the pilot increased power and the engine began to run rough. According to the pilot, "the engine was producing little or no power and descent rate was in excess of 2,500 feet per minute." He switched from the right to the left ignition module, which resulted in a momentary increase in power. After a few seconds, the engine again stopped producing power, and he executed an approach to a baseball field. The airplane impacted the chain link fence backstop of the baseball field and then struck a school bus barn. The wing separated from the fuselage. A Federal Aviation Administration inspector examined the wreckage of the airplane and reported that the airplane was powered by a Chevrolet V-8 engine. The reason for the loss of engine power was not determined.
Factual narrative
On August 9, 2008, about 1514 Pacific daylight time, a Smith Stewart S51D, amateur built experimental airplane, N51VS, experienced a loss of engine power while on approach to land at Oxnard Airport, Oxnard, California. During the subsequent forced landing, the airplane sustained substantial damage when it collided with a fence and building. The private pilot, who was the owner and builder of the airplane, received serious injuries. Visual meteorological conditions prevailed for the 14 Code of Federal Regulations Part 91 personal cross-country flight, and no flight plan was filed. The flight departed from Tehachapi, California, at 1415, with an intended destination of Oxnard.
The pilot reported that the flight was made at a cruise altitude of 9,500 feet mean sea level (msl). As he neared his destination, he descended to 2,500 feet msl at low power with the mixture enrichened progressively. He entered the traffic pattern for runway 25 on the right base leg as instructed by the tower local controller. After turning final, the pilot increased power and the engine began to run rough. According to the pilot, "the engine was producing little or no power and descent rate was in excess of 2,500 feet per minute." He switched from the right to the left ignition module, which resulted in a momentary increase in power. After a few seconds, the engine again stopped producing power, and he executed an approach to a baseball field.
Oxnard Fire Department personnel reported that the airplane impacted the chain link fence backstop of the baseball field and then struck a school bus barn. The wing separated from the fuselage and fuel was observed leaking from the wing.
A Federal Aviation Administration inspector examined the wreckage of the airplane and reported that the airplane was powered by a Chevrolet V-8 engine. The reason for the loss of engine power was not determined.
Aircraft
- Registration
- N51VS
- Reported as
- Smith Stewart S51D
- Category
- Airplane, amateur-built
- Serial number
- 162
- Airframe hours
- 125
- Engine
- Chevrolet V-8, 495 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · April 5, 2008
- Departed
- TSP · Tehachapi, CA
- Destination
- OXR · Oxnard, CA
- Airport
- OXR · Oxnard, runway 25, 5,953 × 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
- 62
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Multi-engine land, Single-engine sea, Single-engine land
- Instrument ratings
- Airplane
- Medical
- Class 3, With waivers/limitations
- Last flight review
- June 28, 2007
- Seat
- Front
- Flight hours
- 2,400 total · 130 in this make and model · 2,350 as pilot in command · 33 in the last 90 days · 7 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 250° at 11 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 70 °F, dew point 57 °F
- Altimeter
- 29.95 inHg
- Observed at
- OXR, 1 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.
Other investigations on N51VS · 1
Matched to the same aircraft by N-number and date.