CHI99LA097

NTSB accident investigation · Cessna 182E · East Troy, WI · February 21, 1999

Accident · No injuriesLimited investigationFinal report
Date
February 21, 1999, 11:00 local (17:00 UTC)
Place
East Troy, WI
Injuries
5 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N3177YCessna 182E
Weather
Visual (VMC) · Day
Status
Completed · report May 8, 2001
Report
Approved by Office Director
FAA report
19990221001699A
Case key
45803

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 collapse of the right main landing gear from a preexisting fatigue crack.

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.

Gear collapsedTaxi - to takeoff
Landing gear,main gear - collapsedCause
Landing gear,main gear - corrodedFactor
Landing gear,main gear - fatigueFactor

Analysis

The pilot stated that after four parachutists had boarded the airplane, he began to taxi away from the gate. The pilot stated that the airplane traveled about 25 yards on the upward sloping grass terrain when the right main landing gear collapsed. Examination of the landing gear revealed a break approximately 10 inches from the inboard end of the landing gear leg at a point where it is clamped to the fuselage structure. Further examination of the airplane revealed no other anomalies. Examination of the landing gear by the Materials Laboratory Division of the National Transportation Safety Board indicated that the break stemmed from preexisting fatigue regions located on the lower forward surface of the landing gear leg. This area of the gear also contained evidence of fretting damage in areas where there had been a loss of paint.

Factual narrative

On February 21, 1999, at 1100 central standard time (cst), a Cessna 182E, N3177Y, piloted by a commercial pilot, sustained substantial damage during taxi at East Troy Municipal Airport, in East Troy, Wisconsin, after a collapse of the right main landing gear. Visual meteorological conditions prevailed at the time of the accident. The commercial 14 CFR Part 91 flight was not operating on a flight plan. The pilot reported no injuries to himself or the four passengers. The flight was originating at the time of the accident.

The pilot stated that after four parachutists had boarded the airplane, he began to taxi away from the gate. The pilot stated that the airplane traveled about 25 yards on the upward sloping grass terrain when the right main landing gear collapsed.

Post accident investigation showed substantial damage to the right wing and horizontal stabilizer. Examination of the landing gear revealed a break approximately 10 inches from the inboard end of the landing gear leg at a point where it is clamped to the fuselage structure. Further examination of the airplane revealed no other anomalies.

Examination of the landing gear by the Materials Laboratory Division of the National Transportation Safety Board indicated that the break stemmed from preexisting fatigue regions located on the lower forward surface of the landing gear leg. This area of the gear also contained evidence of fretting damage in areas where there had been a loss of paint.

Aircraft

Registration
N3177Y
Reported as
Cessna 182E
Category
Airplane
Serial number
18254177
Airframe hours
7,210
Engine
Continental O470L16F, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Skynights Sport Parachute Club
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 22, 1998 · 99 hours before
Departed
57C
Airport
57C · East Troy Municipal Arpt

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
58
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,100 total · 1,100 as pilot in command · 5 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 12 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
28 °F, dew point 16 °F
Altimeter
30.00 inHg
Observed at
MKE, 27 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.