CEN11CA454

NTSB accident investigation · Van Kalker John E RAF 2000 GTX SE · Decker, IN · July 6, 2011

Accident · No injuriesData collectionFinal report
Date
July 6, 2011, 10:30 local (14:30 UTC)
Place
Decker, IN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N25VKVan Kalker John E RAF 2000 GTX SE
Defining event
Landing-flare/touchdown: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed · report October 6, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA-Indianapolis FSDO
FAA report
20110706012089A
Case key
81012

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 improper landing flare, which resulted in the gyroplane's main rotor contacting the runway surface.

Findings · 1

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Incorrect use/operationVan Kalker John E RAF 2000 GTX SE: 1 caseAll aircraft: 1,285 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

According to the certified flight instructor, during the training flight he retarded engine power while the airplane was on the downwind leg of the traffic pattern, in order to simulate an engine failure. During the flare for the simulated forced landing, the main rotor blade of the gyroplane struck the ground, and it rolled over on its left side. The pilot reported there were no mechanical failures or malfunctions of the gyroplane.

Factual narrative

The flight instructor reported that during the training flight, he retarded engine power during the downwind leg of the traffic pattern in order to simulate an engine failure. During the flare for the simulated forced landing the main rotor blade of the gyroplane struck the ground directly behind the aircraft which resulted in the gyroplane rolling over on its left side. The pilot reported no mechanical failures or malfunctions of the gyroplane prior to the accident. The aircraft received substantial damage which included a bent keel, a bent/broken rotor mast, a damaged main rotor blade, empennage damage, a cracked cabin, and a broken propeller.

Aircraft

Registration
N25VK
Reported as
Van Kalker John E RAF 2000 GTX SE
Category
Gyroplane, amateur-built
Serial number
251
Airframe hours
475
Engine
Subaru ALL MDLS A/B, 400 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · May 5, 2011
Departed
0IN1 · Decker, IN
Destination
0IN1 · Decker, IN
Airport
0IN1 · Snider Field Airport, runway 15, 2,000 × 75 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
42
Injuries
None
Certificates
Flight engineer, Airline transport, Flight instructor, Commercial
Airplane ratings
Single-engine sea, Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
April 20, 2011
Seat
Right
Flight hours
13,400 total · 450 in this make and model · 4,020 as pilot in command · 220 in the last 90 days · 80 in the last 30 days · 3 in the last 24 hours
Role
Student pilot
Age
62
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2
Seat
Left

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
25 statute miles
Lowest ceiling
None
Temperature
84 °F
Altimeter
30.00 inHg
Observed at
0IN1

Docket · 1

The files NTSB released with the investigation on August 6, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 580 KB in all.

FAA reports on this event · 1

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