WPR09LA047

NTSB accident investigation · Nickel RV-6 · Fresno, CA · November 25, 2008

Accident · Serious injuriesLimited investigationFinal report
Date
November 25, 2008, 15:30 local (23:30 UTC)
Place
Fresno, CA
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N6TRNickel RV-6
Defining event
Initial climb: Loss of engine power (partial)
Weather
Visual (VMC) · Day
Status
Completed · report August 13, 2009
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20081125851989A
Case key
69502

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 NTSB’s determination of the probable cause, and any contributing factors.

The loss of engine power during initial climb for undetermined reasons.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings.

Analysis

The pilot reported that during the initial climb the engine misfired and only produced "marginal power." As he executed a left turn back towards the airport, the engine lost power and he performed a forced landing onto a golf course. During the landing roll, the airplane struck a berm and became airborne again. Subsequently, the airplane landed hard and came to rest upright. Examination of the airplane by a Federal Aviation Administration inspector revealed that the airplane fuselage was structurally damaged. Examination of the converted Ford engine by the pilot revealed that the fuel system was intact and undamaged. The pilot also reported finding "no obvious" anomalies with the ignition system. The reason for the loss of engine power was not determined.

Factual narrative

On November 25, 2008, about 1530 Pacific standard time, a Nickel RV-6 amateur-built experimental airplane, N6TR, sustained substantial damage during a forced landing following a loss of engine power after takeoff from Sierra Sky Park Airport, Fresno, California. The private pilot, the sole occupant, who was the owner and builder of the airplane, was seriously injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local personal flight conducted under 14 Code of Federal Regulations Part 91. The flight was originating when the accident occurred. The pilot reported that prior to takeoff; he performed a high-speed taxi test on the runway with no anomalies noted. The pilot taxied back to the run-up area, performed his preflight checklist uneventfully, and proceeded to takeoff. During the takeoff initial climb, the engine misfired and developed "marginal power." As he executed a left turn towards the airport, the engine lost power. The pilot further stated "to take advantage of relatively good landing opportunities below," he continued the left turn and initiated a forced landing to an open area on a golf course. During the landing roll, the airplane struck a berm and became airborne again. Subsequently, the airplane landed hard and came to rest upright. Examination of the airplane by a Federal Aviation Administration inspector revealed that the airplane came to rest within a golf course about 1 mile northwest of the runway. The engine was partially separated from the airframe, and the firewall was bent and buckled. Examination of the converted Ford engine by the pilot revealed the fuel system was intact and undamaged. The pilot also reported finding "no obvious" anomalies with the ignition system. The reason for the loss of engine power was not determined.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident.

Aircraft

Registration
N6TR
Reported as
Nickel RV-6
Category
Airplane, amateur-built
Serial number
20492
Airframe hours
70
Engine
Ford CONVERSION, 155 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 24, 2008 · 4 hours before
Departed
E79 · Fresno, CA
Destination
E79 · Fresno, CA
Airport
E79 · Sierra Sky Park Airport, runway 30, 2,920 × 50 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
70
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
June 2, 2008
Seat
Left
Flight hours
1,071 total · 71 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
80° at 3 knots
Visibility
3 statute miles
Lowest ceiling
15,000 ft overcast
Temperature
63 °F, dew point 46 °F
Altimeter
29.96 inHg
Observed at
KFAT, 8 nm away

Docket · 1

The files NTSB released with the investigation on June 17, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.5 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.