ANC06LA086

NTSB accident investigation · Storm Zenair CH-701 · Fairbanks, AK · July 9, 2006

Accident · Serious injuriesLimited investigationFinal report
Date
July 9, 2006, 14:55 local (22:55 UTC)
Place
Fairbanks, AK
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4233JStorm Zenair CH-701
Weather
Visual (VMC) · Day
Status
Completed · report January 31, 2007
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Fairbanks FSDO-01
FAA report
20060709012519A
Case key
64075

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 for an undetermined reason during cruise flight, which resulted in an emergency descent into trees.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine powerCruise - normal
Reason for occurrence undeterminedCause
Forced landingDescent - emergency
In flight collision with objectEmergency descent/landing
Object - tree(s)

Analysis

The sport pilot was conducting a cross-country flight to a nearby airport to practice takeoffs and landings in an amateur built experimental airplane under Title 14, CFR Part 91. The pilot reported that the engine lost all power and the airplane descended into trees, receiving structural damage to its wings and fuselage. The pilot stated he was unaware of what precipitated the loss of engine power. The airplane was not examined by an NTSB investigator.

Factual narrative

On July 9, 2006, about 1455 Alaska daylight time, a Storm Zenair CH-701 experimental amateur-built airplane, N4233J, sustained substantial damage when it collided with brush covered terrain during an emergency landing following a loss of engine power, about 9 miles east of Fairbanks, Alaska. The airplane was operated by the pilot as a visual flight rules (VFR) personal cross-country flight under Title 14, CFR Part 91, when the accident occurred. The solo sport pilot certificated pilot received serious injuries. Visual meteorological conditions prevailed, and no flight plan was filed. The flight originated at the Chena Marina Airport, Fairbanks, about 1345, and was bound for Bradley Airfield, North Pole, Alaska.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on July 18, the pilot said he had been in the air for about 30 minutes en route to his destination when the airplane's engine "stuttered and then quit." He said during the emergency landing the airplane impacted brush covered terrain. The pilot said the airplane sustained structural damage to the left wing, fuselage, and horizontal stabilizer. He indicated there were no known mechanical anomalies with the airplane prior to the accident. He reported that the engine had quit previously due to a failed seal, but the airplane's engine had been rebuilt, and he had flown 45-50 hours since the rebuild. The pilot was unaware of what precipitated the loss of engine power on the accident flight. The airplane was not examined by an NTSB investigator.

Aircraft

Registration
N4233J
Reported as
Storm Zenair CH-701
Category
Airplane, amateur-built
Serial number
3957028
Airframe hours
361
Engine
Rotax 582 LC, 66 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Robert Harte
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · September 1, 2005 · 37 hours before
Departed
AK28 · Chena Marina, AK
Destination
95Z · North Pole, AK

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
55
Injuries
Serious
Certificate
Sport Pilot
Airplane ratings
Single-engine land
Medical
Sport pilot, Unknown
Seat
Front
Flight hours
170 total · 145 as pilot in command · 20 in the last 90 days · 6 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
70 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.