FTW99LA083

NTSB accident investigation · Robinson R22-B2 · Freer, TX · February 17, 1999

Accident · No injuriesLimited investigationFinal report
Date
February 17, 1999, 09:00 local (15:00 UTC)
Place
Freer, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N971SLRobinson R22-B2
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2001
Report
Approved by Office Director
FAA report
19990217001529A
Case key
45768

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The passenger's inadvertent interference with the cyclic control which consequently restricted the control's movement.

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.

Loss of control - in flightHover
Rotorcraft flight control,cyclic control - movement restrictedCause
Control interference - inadvertentPassengerCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The passenger inadvertently blocked the movement of the cyclic control with his netting gun. The pilot and passenger were hired by a private ranch owner to net deer for removal from his property. During the flight, the passenger missed a deer with one net. The pilot then entered a hover 20 to 25 feet above the deer. After the passenger reloaded the gun, the pilot started to descend when the helicopter rolled to the left. The pilot noticed that the butt of the gun was hooked around the cyclic t-bar. Before the pilot could regain control, the helicopter impacted the ground.

Factual narrative

On February 17, 1999, at 0900 central standard time, a Robinson R22-B2 helicopter, N971SL, was substantially damaged when it impacted terrain following a loss of control while hovering near Freer, Texas. The non-instrument rated commercial pilot and his passenger were not injured. Visual meteorological conditions prevailed and a flight plan was not filed for the Title 14 CFR Part 91 business flight which originated from a private ranch. The helicopter was owned and operated by Smith Helicopters Inc., of Laredo, Texas.

According to the operator of the helicopter, a rancher hired the pilot and a trapper to "net some deer on his ranch for relocation." The trapper used a three foot, 18 pound "net gun" which fires a net on to the animal to trap it so that ground personnel can load the animal into a truck for relocation.

The pilot stated that the trapper missed a deer with the net and was reloading the net gun while the pilot hovered 20 feet over the deer. The pilot verified that the trapper was ready and started to descend. As the helicopter was descending the pilot noticed the helicopter started rolling to the left. The pilot looked toward the trapper and noticed that the "gun was hooked on the T-bar which connects the two cyclic controls." Consequently, the cyclic control was forced to the "full left" position. The pilot told the passenger to unhook his gun; however, the helicopter impacted the ground on its left side before the pilot could regain control.

An FAA inspector examined the helicopter at the site and stated that the tail rotor drive shaft had separated, the main rotor assembly sustained structural damage and that a skid separated from the helicopter.

According to the pilot, he had approximately 3 years experience with this type of operation. The pilot estimated that he had accumulated 2,494 total helicopter flight hours, of which 681 hours were in the same make and model as the accident aircraft.

The pilot stated that the gunner had many hours experience in the same operation and the gunner was well briefed on the operations of the helicopter.

Aircraft

Registration
N971SL
Reported as
Robinson R22-B2
Category
Helicopter
Serial number
2750
Engine
Lycoming O-360-AID, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Smith Helicopters Inc.
Airworthiness certificate
Standard, Normal
Departed
NONE · Private Ranch, TX

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
26
Certificate
Commercial
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,494 total · 681 in this make and model · 2,425 as pilot in command · 190 in the last 90 days · 82 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
6 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.