SEA01LA082

NTSB accident investigation · Schweizer 269D · Nampa, ID · May 3, 2001

Accident · No injuriesLimited investigationFinal report
Date
May 3, 2001, 17:15 local (23:15 UTC)
Place
Nampa, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N2061DSchweizer 269D
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2001
Report
Approved by Office Director
Parties
Boise FSDO
FAA report
20010503009829A
Case key
52196

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 inadequate compensation for strong, gusty, shifting winds while hovering in ground effect. Factors include a sudden

directional change and increase in velocity of the gusty wind conditions.

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.

In flight collision with objectHover - in ground effect
Compensation for wind conditions - inadequatePilot in commandCause
Weather condition - high windFactor
Weather condition - gustsFactor
Weather condition - sudden windshiftFactor

Analysis

While in a low hover just prior to initiating taxi, the helicopter encountered a "severe wind" that lifted it further in the air and required the pilot to reverse his slightly left anti-torque input to a full right input. The pilot initially began to transition to forward flight, but changed his mind and "dropped" the collective in order to put the aircraft back on the ground. As he was attempting to land, the helicopter weathervaned into the wind and started drifting backwards toward the fuel island. The pilot then applied forward cyclic, but was unable to arrest the backwards drift in time to keep the tail boom from impacting the gas island light pole.

Factual narrative

On May 3, 2001, approximately 1715 mountain daylight time, a Schweizer 269D, N2061D, collided with a gas island light pole while hovering at Nampa Municipal Airport, Nampa, Idaho. The private pilot, who was the sole occupant, was not injured, but the aircraft, which was owned and operated by the pilot, sustained substantial damage. At the time of the accident, the aircraft was hovering over its parking location near the fuel island just prior to initiating taxi for a CFR Part 91 personal pleasure flight to Twin Falls, Idaho. The accident occurred in visual meteorological conditions. No flight plan had been filed.

According to the pilot, he lifted off and was hovering about one foot above the ground while visually clearing the area prior to initiating his taxi to the runway. As he looked out to his right he noticed a "twirl" of dust and small trees that were "laying over." He also noticed that the wind sock seemed to be standing straight out. Soon thereafter the helicopter encountered a "severe wind" that, according to the pilot, lifted the aircraft six feet in the air, and required him to reverse his slightly left anti-torque pedal input to a full right input. His initial reaction was to transition to forward flight, but after initially starting to do so, he "dropped" the collective in an attempt to put the helicopter back on the ground. While he was trying to land, the aircraft weathervaned into the wind and started to drift backwards toward the fuel pump island. At that time, the pilot applied forward cyclic in order to stop the helicopter from moving backwards, but he was unable to arrest the drift prior to the tail boom impacting the fuel island light pole.

Aircraft

Registration
N2061D
Reported as
Schweizer 269D
Category
Helicopter
Serial number
0034A
Airframe hours
10
Engine
Rolls-Royce 250-C20W, 250 horsepower, turbo shaft
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Keith L. Sigar
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 22, 2001 · 10 hours before
Departed
S67 · Nampa, ID
Destination
TWF · Twin Falls, ID
Airport
S67 · Boise Municipal

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
62
Injuries
None
Certificate
Private
Airplane ratings
Multi-engine land, Single-engine sea, Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Last flight review
March 13, 2001
Seat
Left
Flight hours
7,130 total · 2 in this make and model · 30 in the last 90 days · 7 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 20 knots, gusting 40
Visibility
50 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 50 °F

FAA reports on this event · 1

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