BFO95LA056

NTSB accident investigation · Knoll-Bensen B-80 · Germansville, PA · May 31, 1995

Accident · No injuriesLimited investigationFinal report
Date
May 31, 1995, 11:00 local (15:00 UTC)
Place
Germansville, PA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N12JKKnoll-Bensen B-80
Weather
Visual (VMC) · Day
Status
Completed · report November 30, 1995
Report
Approved by Office Director
FAA report
19950531017739A
Case key
9049

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 private pilot's misjudged 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/touchdown
Flare - misjudgedPilot in commandCause

Analysis

The pilot reported that he had planned to practice takeoff and landings in the traffic pattern; however, during the landing the flare was too high, and the gyroplane touched down hard. He stated that there was no mechanical malfunction and the accident could have been prevented if he had judged the gyroplane's altitude better during the flare.

Factual narrative

On May 31, 1995, at 1100 eastern daylight time, a Knoll-Bensen B-80 gyroplane, N12JK, operated by the registered owner/builder, sustained substantial damage when it touched down abruptly at the Flying "M" Aerodrome, in Germansville, Pennsylvania. The certificated private pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed and a flight plan was not filed. The local flight was conducted under 14 CFR 91, originated from Germansville, Pennsylvania, about 1030.

The pilot reported that he had planned to practice takeoffs and landings in the traffic pattern. He stated that he completed one takeoff successfully, but during landing "...the flare-out was to high... ." The pilot reported that the gyroplane touched down hard resulting in the main rotor striking the tail and the ground. The pilot stated that there was no mechanical malfunction and that the accident could have been prevented if he had judged the aircraft's altitude better during the flare.

According to an FAA Aviation Safety Inspector, the pilot reported that he had not flown the gyroplane for quite a while, and during the landing the gyroplane touched down hard and, "flipped on its side." The aircraft was examined after the accident at the accident site and there was no evidence of mechanical malfunction.

Aircraft

Registration
N12JK
Reported as
Knoll-Bensen B-80
Category
Gyroplane, amateur-built
Serial number
K-1
Airframe hours
100
Engine
Mcculloch O-100-1, 72 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
John Knoll
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · May 15, 1995 · 2 hours before
Departed
PA88
Airport
PA88 · Flying M Aerodrome, runway 8, 2,370 × 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
61
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
550 total · 100 in this make and model · 550 as pilot in command · 2 in the last 90 days · 2 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots, gusting 10
Visibility
20 statute miles
Lowest ceiling
None
Temperature
81 °F

FAA reports on this event · 1

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