NYC00LA259

NTSB accident investigation · Mihlebach Waco · Williamstown, NJ · September 2, 2000

Accident · No injuriesLimited investigationFinal report
Date
September 2, 2000, 11:45 local (15:45 UTC)
Place
Williamstown, NJ
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N521SMihlebach Waco
Weather
Visual (VMC) · Day
Status
Completed · report May 8, 2001
Report
Approved by Office Director
FAA report
20000902043469A
Case key
50224

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 execute an adequate flare, which resulted in a hard 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.

Hard landingLanding
Flare - inadequatePilot in commandCause
Main gear collapsedLanding
Landing gear,axle - fractured
Nose overLanding

Analysis

At the end of a local VFR flight, the pilot flared the homebuilt airplane to land, and it touched down hard. The left axle bracket separated, and the airplane came to rest inverted. The pilot was the builder of the airplane.

Factual narrative

On September 2, 2000, about 1145 Eastern Daylight Time, a homebuilt Waco, N521S, was substantially damaged during landing at Southern Cross Airport, Williamstown, New Jersey. The certificated private pilot and passenger were not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the personal local flight conducted 14 CFR Part 91.

According to the pilot, he entered a "standard pattern" for Runway 27, and that the downwind, base, and final portions of the traffic pattern were "normal." When the pilot flared the airplane, it bounced, and then nosed over.

According to a Federal Aviation Administration inspector, the pilot flared to land on the runway, and the airplane touched down hard. The left axle bracket weld separated, and the airplane came to rest inverted. The pilot was the manufacturer of the airplane, and had welded the separated component.

Aircraft

Registration
N521S
Reported as
Mihlebach Waco
Category
Airplane, amateur-built
Serial number
002GM
Airframe hours
47
Engine
Continental W670-6A, 220 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gustav Mihlebach
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · September 18, 1999 · 20 hours before
Departed
C01
Airport
C01 · Souther Cross, runway 27, 2,400 × 80 ft, grass/turf

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
49
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
666 total · 45 in this make and model · 4 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
MIV, 23 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.