- Date
- April 7, 2009, 12:06 local (17:06 UTC)
- Place
- Corning, AR
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Initial climb
- Aircraft
- N36597Air Tractor AT-301
- Defining event
- Initial climb: Loss of engine power (total)
- Status
- Completed · report September 10, 2009
- Report
- Approved by Office Director
- NTSB office
- Central Region
- Parties
- FAA
- FAA report
- 20090407003319A
- Case key
- 73615
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 loss of engine power due to the failure of the number one engine cylinder for undetermined reasons.
Findings · 1
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 commercial pilot was on departure from initial takeoff when the engine "popped" several times and stopped producing power. The pilot performed a forced landing in a rice field off the departure end of the runway. The pilot found the number one cylinder head cracked during a postaccident examination of the airplane. Additional examination of the airplane revealed damage to the left aileron and both horizontal stabilizers. Additional examination of the cracked cylinder head could not be accomplished and a cause of the failure was not determined.
Factual narrative
On April 7, 2009, at 1206 central daylight time, an Air Tractor AT-301 airplane, N36597, was substantially damaged during a forced landing following a loss of engine power near Corning, Arkansas. The commercial pilot was not injured. The flight was being conducted under the provisions of Title 14 Code of Federal Regulations Part 91 without a flight plan. The cross country flight was originating from Corning Municipal Airport (4M9), Corning, Arkansas. Visual meteorological conditions prevailed at the time of the accident. The pilot stated he had just purchased the airplane and the accident flight was his first in that airplane. He and a mechanic examined the airplane prior to flight and did not observe any anomalies with the airplane or engine. The pilot started the engine and allowed it to idle and warm up for fifteen minutes prior to taxiing to takeoff. He stated the preflight and engine run-up were normal. The pilot reported he was on departure from initial takeoff when the engine "popped" several times and stopped producing power. The pilot performed a forced landing in a rice field off the departure end of the runway. The pilot found the number one cylinder head cracked during a post accident examination of the airplane. Examination of the airplane revealed damage to the left aileron and both horizontal stabilizers bent downward. Examination of the cracked cylinder head was not possible and a cause of the failure was not determined.
Aircraft
- Registration
- N36597
- Reported as
- Air Tractor AT-301
- Category
- Airplane
- Serial number
- 301-0331
- Engine
- P&W R1340 SERIES, 600 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Ferry · Part 91
- Operator
- Wenzel Richard E
- Registered owner
- Wenzel Richard E
- Airworthiness certificate
- Special, Restricted (Special)
- Departed
- 4M9 · Corning, AR
- Flight plan
- Unknown
- Airport
- 4M9 · Corning Municipal Airport
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
- Injuries
- None
- Certificate
- Commercial
- Airplane ratings
- Single-engine land, Multi-engine land
- Medical
- Class 2, With waivers/limitations
- Seat
- Single
Docket · 7
The files NTSB released with the investigation on July 22, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 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.