- Date
- May 18, 2008, 18:45 local (May 19, 2008, 01:45 UTC)
- Place
- Olympia, WA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N4276YBabcock KR-2
- Defining event
- Initial climb: Loss of engine power (total)
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 6, 2009
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20080519835459A
- Case key
- 68044
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
A total loss of engine power during takeoff due to the carburetor's mixture needle backing out.
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 airplane's engine lost power immediately after becoming airborne. The pilot landed straight ahead on the runway, but landed hard due to the lack of time and altitude for a proper flare. The airplane's left wing was structurally damaged, the firewall was wrinkled, the nose landing gear separated, and the two main landing gear were bent outboard. Postaccident examination of the engine by the pilot revealed that the carburetor's mixture needle had backed out, permitting the mixture to become excessively rich and resulting in a loss of power.
Factual narrative
On May 18, 2008, approximately 1845 Pacific daylight time, a Babcock KR-2 experimental homebuilt airplane, N4276Y, sustained substantial damage during a hard landing at Olympia Airport (OLM), Olympia, Washington. The private pilot, the sole occupant, was not injured. The pilot/owner was operating the airplane under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed for the local, personal flight, which was originating at the time of the accident. No flight plan had been filed. The pilot reported that immediately after takeoff, the engine began "running rough." The engine lost power and he landed straight ahead on the remaining runway. The pilot stated that due to the lack of time and altitude he landed hard. The airplane's left wing was structurally damaged, the firewall was wrinkled, the nose landing gear separated, and the two main landing gear were bent outboard. Postaccident examination of the engine by the pilot revealed that the carburetor's mixture needle had backed out permitting the mixture to become excessively rich, resulting in a loss of power.
Aircraft
- Registration
- N4276Y
- Reported as
- Babcock KR-2
- Category
- Airplane, amateur-built
- Serial number
- 1412
- Airframe hours
- 290
- Engine
- Hapi VW 1835, 60 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- William T. Walsh
- Registered owner
- William T. Walsh
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · February 14, 2008
- Departed
- OLM · Olympia, WA
- Destination
- OLM · Olympia, WA
- Airport
- OLM · Olympia Airport, runway 26, 4,157 × 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
- 36
- Injuries
- Minor
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Without waivers/limitations
- Last flight review
- October 1, 2007
- Seat
- Left
- Flight hours
- 444 total · 60 in this make and model · 395 as pilot in command · 20 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 210° at 5 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 75 °F, dew point 52 °F
- Altimeter
- 29.97 inHg
- Observed at
- OLM
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.