DEN08CA148

NTSB accident investigation · Robinson R-22 · Refugio, TX · August 29, 2008

Accident · No injuriesData collectionFinal report
Date
August 29, 2008, 18:00 local (23:00 UTC)
Place
Refugio, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2312Robinson R-22
Defining event
Landing: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report January 22, 2009
Report
Approved by Office Director
Parties
San Antonio
Case key
68850

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 failed to maintain adequate airspeed while maneuvering to land.

Findings · 2

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: airspeedAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 1,681 casesProbable cause
Use of equip/info: aircraft controlPersonnel issues › Task performance · PilotAll aircraft: 9,295 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

The pilot and non-rated passenger were conducting a wildlife survey of a ranch. According to the pilot he was maneuvering to land on a ranch road at about 50-60 feet and turned into the wind. During the turn he got too slow and the low rotor horn sounded and the low rotor light illuminated. He was unable to recover the descent or go around, resulting in a hard landing. During the landing a main rotor contacted the tail boom. An examination of the helicopter revealed the tail boom separated from the fuselage.

Factual narrative

The pilot and non-rated passenger were conducting a wildlife survey of a ranch. The pilot transported his helicopter to the ranch on a trailer and launched from the trailer. According to the pilot he was maneuvering to land on a ranch road at about 50-60 feet and turned into the wind. During the turn he got too slow and the low rotor horn sounded and the low rotor light illuminated. He was unable to recover the descent or go around, resulting in a hard landing. During the landing a main rotor contacted the tail boom. An examination of the helicopter revealed the tail boom separated from the fuselage.

Aircraft

Registration
N2312
Reported as
Robinson R-22
Category
Helicopter
Serial number
1973
Engine
Textron Lycoming o-320-b2c, reciprocating
Damage
Substantial damage
Flight
Aerial observation · Part 91
Operator
Coastal Bend Helicopter Services LLC, doing business as Coastal Bend Helicopter Services LLC
Registered owner
Coastal Bend Helicopter Services LLC
Airworthiness certificate
Standard, Normal
Departed
Refugio, TX
Destination
Refugio, TX
Airport
N/A · Not Applicable

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
31
Injuries
None
Certificate
Commercial
Medical
Class 2
Last flight review
September 1, 2007
Flight hours
622 total · 585 in this make and model · 129 in the last 90 days · 51 in the last 30 days · 12 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
150° at 10 knots
Visibility
10 statute miles
Temperature
95 °F