DEN08LA038

NTSB accident investigation · Rotorway Exec 162-F · New Century, KS · November 13, 2007

Accident · No injuriesLimited investigationFinal report
Date
November 13, 2007, 10:30 local (16:30 UTC)
Place
New Century, KS
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N46110Rotorway Exec 162-F
Weather
Visual (VMC) · Day
Status
Completed · report April 30, 2008
Report
Approved by Office Director
Parties
FAA Flight Standards District Office
FAA report
20071113827129A
Case key
67201

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

While on approach the tail rotor spar failed due to metal fatigue .

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.

Airframe/component/system failure/malfunctionApproach - vfr pattern - final approach
Rotor system,tail rotor blade spar - vibration
Rotor system,tail rotor blade spar - fatigueCause
Rotor system,tail rotor blade spar - failure,totalCause
Forced landingDescent - emergency
Hard landingLanding - flare/touchdown
Terrain condition - open field

Analysis

The pilot was doing hovering maneuvers at the end of the runway. He was cleared for a left pattern to return to the end of the runway. On final approach he felt a "moderate vibration" in the tail rotor, and elected to autorotate to a farm field adjacent to airport property rather than try to clear surrounding trees and fences. The helicopter landed hard, flexing the landing gear. The pilot later reported a spar in one of the tail rotor blades had failed due to metal fatigue.

Factual narrative

On November 13, 2007, at 0912 central standard time, a Rotorway Exec 162-F, N46110, registered to and operated by the pilot, was substantially damaged when it impacted terrain during an off-airport landing while on approach to New Century Aircenter (IXD), New Century, Kansas. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The pilot, the sole occupant on board, was not injured. The local flight had just originated.

According to the pilot's accident report, he was doing hovering maneuvers at the end of runway 22, He was cleared for a left pattern to return to the end of the runway. On final approach he felt a "moderate vibration" in the tail rotor, and elected to autorotate to a farm field adjacent to airport property rather than try to clear surrounding trees and fences. The helicopter landed hard, flexing the landing gear.

On January 25, 2008, the pilot was interviewed via telephone. He said a spar in the tail rotor blade had failed due to metal fatigue.

Aircraft

Registration
N46110
Reported as
Rotorway Exec 162-F
Category
Helicopter, amateur-built
Serial number
6850
Airframe hours
127
Engine
146 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Donald B. Eikel
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · November 1, 2007 · 127 hours before
Departed
IXD · New Century, KS
Destination
IXD · New Century, KS
Airport
IXD · New Century Aircenter, runway 22, 5,130 × 100 ft, asphalt

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
52
Injuries
None
Certificate
Private
Medical
Class 3, With waivers/limitations
Seat
Left
Flight hours
200 total · 200 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
140° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 34 °F
Altimeter
30.02 inHg
Observed at
IXD

FAA reports on this event · 1

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