SEA06CA128

NTSB accident investigation · Unknown Challenger II · Emmett, ID · June 23, 2006

Accident · No injuriesData collectionFinal report
Date
June 22, 2006, 19:00 local (Jun 23, 2006, 01:00 UTC)
Place
Emmett, ID
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
UNREGUnknown Challenger II
Weather
Visual (VMC) · Day
Status
Completed · report October 3, 2006
Report
Approved by Office Director
Case key
63975

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 pilot's failure to maintain aircraft control, which resulted in an off-airport landing. Contributing factors were the pilot's lack of familiarity with the airplane and the soft terrain.

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 control - in flightTakeoff - initial climb
Aircraft control - not maintainedPilot in commandCause
Lack of familiarity with aircraftPilot in commandFactor
On ground/water encounter with terrain/waterEmergency landing after takeoff
Terrain condition - softFactor

Analysis

The pilot reported that he had about 500 hours flight time in ultralights including time in a Challenger I, but he had not previously flown a Challenger II. Before the flight, he reviewed the Challenger II owner's manual and found that it recommended use of full flapperons for takeoff. Therefore, he set full flapperons. After takeoff, as the airplane over flew the end of the runway, it "stopped" climbing. The pilot attempted to raise the flaperrons, but could not reach the crank handle, which was located above and behind his head. He was "able to keep nose level at full throttle" and executed an off-airport landing in a hay field. During the ground roll in the soft terrain, the nose landing gear collapsed.

Factual narrative

On June 22, 2006, about 1900 mountain daylight time, an un-registered un-certificated experimental amateur-built Challenger II airplane sustained substantial damage when it encountered soft terrain during an off-airport landing following a loss of control in the initial climb after takeoff from Emmett Municipal Airport, Emmett, Idaho. The un-certificated pilot and the passenger, who was the airplane's owner, were not injured. Visual meteorological conditions prevailed and no flight plan was filed for the 14 CFR Part 91 personal local flight.

The pilot reported that he had about 500 hours flight time in ultralights including time in a Challenger I, but he had not previously flown a Challenger II. Before the flight, he reviewed the Challenger II owner's manual and found that it recommended use of full flapperons for takeoff. Therefore, he set full flapperons. After takeoff, as the airplane over flew the end of the runway, it "stopped" climbing. The pilot attempted to raise the flaperrons, but could not reach the crank handle, which was located above and behind his head. He was "able to keep nose level at full throttle" and executed an off-airport landing in a hay field. During the ground roll in the soft terrain, the nose landing gear collapsed.

Aircraft

Registration
UNREG
Reported as
Unknown Challenger II
Category
Airplane, amateur-built
Serial number
CH2 0199-1831
Engine
Rotax 503UL, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Departed
S78 · Emmett, ID
Destination
S78
Airport
S76 · Emmett Municipal, runway 28

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Flight hours
500 total · 0 in this make and model

Weather

Conditions
Visual (VMC) · Day