CHI90DEP01

NTSB accident investigation · Wychen Challenger II · Warrens, WI · October 22, 1989

Accident · Serious injuriesFinal report
Date
October 22, 1989, 09:05 local (14:05 UTC)
Place
Warrens, WI
Injuries
1 serious, 1 minor
Damage
Substantial damage
Phase of flight
Initial climb
Aircraft
N91269Wychen Challenger II
Weather
Visual (VMC) · Day
Status
Completed · report July 29, 1992
Report
Approved by Office Director
FAA report
19891022042059A
Case key
14474

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

A broken cranskshaft which resulted in the loss of power. A factor related to the accident was: the lack of suitable terrain for a forced landing.

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 power(total) - mech failure/malfTakeoff - initial climb
Engine assembly,crankshaft - failure,totalCause
Forced landingDescent - emergency
In flight collision with terrain/waterLanding
Terrain condition - none suitableFactor

Analysis

Shortly after departing a private strip, the aircraft's engine lost power. Subsequently, the aircraft was damaged & the pilot was injured, while landing on an earthen dike between cranberry beds. An exam of the engine revealed its crankshaft had failed.

Aircraft

Registration
N91269
Reported as
Wychen Challenger II (CHALLENGER)
Category
Airplane, amateur-built
Serial number
CH20187WD225
Airframe hours
82
Engine
Rotax 503 DC, 52 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
James G. Van Wychen
Airworthiness certificate
Special, Experimental (Special)

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
41
Certificate
Student
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
120 total · 85 in this make and model · 86 as pilot in command · 75 in the last 90 days · 30 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
50 °F, dew point -0 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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