DFW08CA064

NTSB accident investigation · Robinson R22 Beta · Houston, TX · February 8, 2008

Accident · No injuriesData collectionFinal report
Date
February 8, 2008, 09:30 local (15:30 UTC)
Place
Houston, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Other
Aircraft
N2364BRobinson R22 Beta
Defining event
Other: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report March 31, 2008
Report
Approved by Office Director
FAA report
20080208010969A
Case key
67485

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 improper use of the collective and the flight instructor's delayed remedial action, which resulted in a dynamic rollover.

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.

Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotRobinson Helicopter R22 BETA: 96 casesAll aircraft: 9,295 casesProbable cause
Action: delayed actionPersonnel issues › Action/decision · PilotRobinson Helicopter R22 BETA: 35 casesAll aircraft: 894 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 certified flight instructor and the student pilot flew to a practice area to work on hovering techniques. Before the flight instructor turned over the controls to the student, he discussed with the student how to make a positive transfer of the controls and also the importance of not having a tight grip on the controls. The student took control of the helicopter and practiced hovering for approximately 10 minutes, when the flight instructor felt the helicopter begin to settle. Before the flight instructor could react, the student pilot "quickly" pulled the collective full up, which overrode the throttle and the main rotor began to lose rpm. The instructor immediately made an attempt to lower the collective and increase engine rpm, but the left skid contacted the ground, and the helicopter rolled over on to its left side. The helicopter sustained damage to the main rotor blades and the firewall.

Factual narrative

The certified flight instructor and the student pilot flew to a practice area to work on hovering techniques. Before the flight instructor turned over the controls to the student, he discussed with the student how to make a positive transfer of the controls and also the importance of not having a tight grip on the controls. The student took control of the helicopter and practiced hovering for approximately 10 minutes, when the flight instructor felt the helicopter begin to settle. Before the flight instructor could react, the student pilot "quickly" pulled the collective full up, which overrode the throttle and the main rotor began to lose rpm. The instructor immediately made an attempt to lower the collective and increase engine rpm, but the left skid contacted the ground, and the helicopter rolled over on to its left side. The helicopter sustained damage to the main rotor blades and the firewall.

Aircraft

Registration
N2364B
Reported as
Robinson R22 Beta
Category
Helicopter
Serial number
2362
Engine
Lycoming O-320, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Helicopter Services Incorporated
Airworthiness certificate
Standard, Normal
Departed
DWH · Houston, 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 · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
37
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2
Flight hours
342 total · 249 in this make and model
Role
Student pilot
Age
24
Certificate
Student
Medical
Class 2
Flight hours
3 in this make and model

Weather

Conditions
Visual (VMC) · Day

FAA reports on this event · 1

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