DEN07LA167

NTSB accident investigation · Robinson R-22 Beta · Silver City, NM · September 29, 2007

Accident · No injuriesLimited investigationFinal report
Date
September 29, 2007, 10:00 local (16:00 UTC)
Place
Silver City, NM
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N74557Robinson R-22 Beta
Weather
Visual (VMC) · Day
Status
Completed · report February 28, 2008
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20070929830149A
Case key
66786

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 student pilot's failure to maintain control of the helicopter resulting in his settling with power and subsequent impact with terrain. A factor contributing to the accident was the trees.

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 flightManeuvering
Aircraft control - not maintainedPilot in commandCause
Settling with power - encounteredPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - tree(s)Factor
In flight collision with terrain/waterDescent - uncontrolled
Terrain condition - ravine

Analysis

The student pilot reported that he was tying to locate a fence in the bottom of a narrow canyon . As he was making a turn, the helicopter encountered a tailwind which caused it to settle. The main rotor struck a tree and the helicopter subsequently impacted the terrain. An examination of the helicopter systems showed no anomalies.

Factual narrative

On September 29, 2007, at 1000 mountain daylight time, a Robinson R-22 BETA, N74557, piloted by a solo student pilot, descended uncontrollably, struck trees, and impacted terrain 40 miles northwest of Silver City, New Mexico. The local personal flight was being conducted without a flight plan under the provisions of Title 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed at the time of the accident. The student pilot was not injured and the helicopter was substantially damaged. The flight originated from a private ranch at Douglas, Arizona, at 0630.

The student pilot reported that he was tying to locate a fence in the bottom of a narrow canyon . As he was making a turn, the helicopter encountered a tailwind which caused it to settle. The main rotor struck a tree and the helicopter subsequently impacted the terrain.

The helicopter was found resting on it's left side. An examination of the helicopter showed substantial damage to the cabin area and the main rotor separated. An examination of the helicopter systems showed no anomalies.

Aircraft

Registration
N74557
Reported as
Robinson R-22 Beta
Category
Helicopter
Serial number
3900
Engine
Lycoming O-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Richard R. Snure
Airworthiness certificate
Standard, Normal
Departed
Douglas, AZ

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
59
Injuries
None
Certificate
Student
Medical
Class 3, With waivers/limitations
Seat
Right
Flight hours
1,400 total · 360 in the last 90 days · 100 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 13 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 55 °F
Altimeter
30.12 inHg
Observed at
SVC, 40 nm away

FAA reports on this event · 1

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