MIA08LA186

NTSB accident investigation · Tetrault Ronad Team Mini Max 1500R · Berkley, MA · September 7, 2008

Accident · No injuriesLimited investigationFinal report
Date
September 7, 2008, 17:00 local (21:00 UTC)
Place
Berkley, MA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N43436Tetrault Ronad Team Mini Max 1500R
Defining event
Enroute-cruise: Loss of engine power (total)
Weather
Visual (VMC) · Day
Status
Completed · report January 29, 2009
Report
Approved by Office Director
Parties
FAA/FSDO
FAA report
20080907845079A
Case key
68887

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The total loss of engine power due to the contamination of the combustion cylinders.

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 pilot/owner of the amateur-built airplane stated that during a local flight at 1,000 feet above ground level, he experienced a total loss of engine power. He made an emergency landing on a beach and the right wing impacted the ground. The airplane was released to the pilot for further examination of the engine. The pilot stated that during the examination of the Rotax 447 engine, he found large amounts of carbon build-up on the rings. Additionally, the cylinder walls were scored. Valve train continuity could not be established due to the carbon build-up. No other mechanical anomalies were noted by the pilot.

Factual narrative

On September 7, 2008, about 1700 eastern daylight time, an amateur-built Team Mini Max 1500R, N43436, experienced a total loss of engine power and made a forced landing on a beach near Berkley, Massachusetts. The certificated private pilot was not injured. The airplane was substantially damaged by impact forces. The flight was operated as a personal flight under the provisions of 14 Code of Federal Regulations (CFR) Part 91, and no flight plan was filed. Visual flight rules (VFR) conditions prevailed at the time of the accident. The pilot was also the owner/builder of the airplane. He stated that he was on a local flight at 1,000 feet above ground level, when he experienced a loss of engine power. He said that he executed an emergency landing on a beach; however, during the emergency landing the right wing impacted the ground and buckled. Examination of the airplane by a Federal Aviation Administration inspector revealed that the right wing was buckled. Further examination revealed that 4 gallons of fuel remained in the header tank and 1 gallon was in the aft tank. The airplane was released to the pilot for further examination of the engine. The pilot stated that during the examination of the Rotax 447 engine, he found large amounts of carbon build-up on the rings. Additionally, the cylinder walls were scored. Valve train continuity could not be established due to the carbon build up. No other mechanical anomalies were noted by the pilot.

Aircraft

Registration
N43436
Reported as
Tetrault Ronad Team Mini Max 1500R
Category
Airplane
Serial number
P-98
Airframe hours
600
Engine
Rotax 447, 40 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ronald Tetrault
Registered owner
Ronald Tetrault
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 1, 2008 · 37 hours before
Departed
MA18 · Berkley, MA
Destination
MA18 · Berkley, MA
Airport
RI07 · Wing-Over Farm

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
56
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Sport pilot
Seat
Center
Flight hours
600 total

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 54 °F
Altimeter
29.86 inHg
Observed at
BOS, 47 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.