CEN11CA167

NTSB accident investigation · Robinson Helicopter R22 Beta · Anoka, MN · January 29, 2011

Accident · Serious injuriesData collectionFinal report
Date
January 29, 2011, 11:23 local (17:23 UTC)
Place
Anoka, MN
Injuries
1 serious, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7195BRobinson Helicopter R22 Beta
Defining event
Takeoff: Dynamic rollover
Weather
Visual (VMC) · Day
Status
Completed · report June 8, 2011
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA Minneapolis FSDO
FAA report
20110129000719A
Case key
78262

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 control inputs that resulted in an inadvertent dynamic rollover and the CFI's inadequate supervision of the flight.

Findings · 3

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.

Aircraft capabilityAircraft › Aircraft oper/perf/capability · Capability exceededRobinson Helicopter R22 BETA: 1 caseAll aircraft: 57 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · Student/instructed pilotRobinson Helicopter R22 BETA: 18 casesAll aircraft: 1,386 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · Instructor/check pilotRobinson Helicopter R22 BETA: 18 casesAll aircraft: 1,386 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 (CFI) was providing instruction to the student pilot, who had 3 hours of total flight time. The student pilot was practicing takeoffs and landings. During an attempted takeoff, the left skid did not lift off and the helicopter experienced a dynamic rollover, which is when the helicopter pivots about the skid remaining on the ground and enters a rolling motion that cannot be corrected with full lateral cyclic input. The helicopter rolled over on its left side and sustained substantial damage to its primary fuselage structure. The operator of the helicopter reported that at the time of the accident the student pilot had not learned how to hover. According to the company’s flight training syllabus, the CFI should not have been providing instruction in takeoffs and landings until the student pilot was able to safely hover the helicopter.

Factual narrative

The certified flight instructor (CFI) was providing instruction to the student pilot who had 3 hours of total flight time. The student pilot was practicing “pickups and set downs.” During an attempted pickup, the left skid did not lift off, and the helicopter experienced a dynamic rollover. The helicopter rolled over on its left side and sustained substantial damage to its primary fuselage structure. The operator of the helicopter reported that at the time of the accident, the student pilot had not learned how to hover. According to the company’s flight training syllabus, the CFI should not have been providing instruction in pickups and set downs until the student pilot was able to safely hover the helicopter.

Aircraft

Registration
N7195B
Reported as
Robinson Helicopter R22 Beta
Category
Helicopter
Serial number
3159
Airframe hours
2,738
Engine
Lycoming 0-360-A1D, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Complete Helicopters Inc
Registered owner
Complete Helicopters Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 28, 2011
Departed
ANE · Anoka, MN
Destination
ANE · Anoka, MN
Flight plan
Unknown
Airport
ANE · Anoka County - Blaine Airport

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
23
Injuries
Serious
Certificates
Flight instructor, Commercial
Instrument ratings
Helicopter
Medical
Class 2
Last flight review
October 30, 2009
Seat
Right
Flight hours
1,607 total · 1,438 in this make and model · 1,559 as pilot in command · 140 in the last 90 days
Role
Student pilot
Age
41
Injuries
None
Seat
Right
Flight hours
3 total · 3 in this make and model · 2 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 10 knots
Visibility
10 statute miles
Lowest ceiling
900 ft overcast
Observed at
ANE

Docket · 1

The files NTSB released with the investigation on March 28, 2011, on NTSB’s docket system: statements, records, photos and specialists’ reports. 842 KB in all.

FAA reports on this event · 1

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