NYC94LA018

NTSB accident investigation · Cessna 170 · Williamstown, NJ · October 23, 1993

Accident · No injuriesLimited investigationFinal report
Date
October 23, 1993, 12:10 local (16:10 UTC)
Place
Williamstown, NJ
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N3975VCessna 170
Weather
Visual (VMC) · Day
Status
Completed · report October 20, 1994
Report
Approved by Office Director
FAA report
19931023040559A
Case key
38707

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

Fatigue failure of the gear axle which resulted in the collapse of the left main gear.

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 collapsedTakeoff - roll/run
Landing gear,axle - fatigueCause
Nose overTakeoff - roll/run

Analysis

The airplane had started the takeoff roll and had travelled about 150 feet when the left main landing gear axle separated from the airplane. The airplane subsequently swerved left and then nosed over. The investigation revealed that fatigue cracking occurred at the junction of the flange and main landing gear axle, resulting in the failure of the axle, and subsequent separation of the landing gear from the airplane.

Factual narrative

On Saturday, October 23, 1993, at about 1210 eastern daylight time, a Cessna 170, N3975V, piloted by Mr. Joseph Reimer Jr, nosed over during take off at the Southern Cross Airstrip, Williamstown, New Jersey. The airplane was substantially damaged. The pilot and the two passengers were not injured. Visual meteorological conditions prevailed at the time, and no flight plan had been filed. The flight was being conducted under 14 CFR 91.

The airplane had started the takeoff roll and had traveled about 150 feet when the left axle of the main landing gear fractured, and separated from the airplane. The airplane ground looped and nosed over.

According to the FAA's Malfunction Report:

...main landing gear axle experienced fatigue failure...the failure occurred at the junction which was cracked along the flange of the main landing gear axle, causing the left main landing gear to separate from the aircraft...it is suspected that a crack may have developed through normal operations, went undetected during preflight and annual inspections...

Aircraft

Registration
N3975V
Reported as
Cessna 170
Category
Airplane
Serial number
18294
Engine
Continental C-145-2, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Joseph Reimer Sr.
Airworthiness certificate
Standard, Normal
Airport
NONE · Southern Cross, runway 27, 2,200 × 100 ft, grass/turf

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
35
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Unknown
Seat
Left
Flight hours
442 total · 383 as pilot in command · 25 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
250° at 7 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
64 °F

FAA reports on this event · 1

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