DFW08CA114

NTSB accident investigation · Hughes 269A · Killeen, TX · April 23, 2008

Accident · No injuriesData collectionFinal report
Date
April 23, 2008, 17:50 local (22:50 UTC)
Place
Killeen, TX
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Emergency descent
Aircraft
N9064NHughes 269A
Defining event
Autorotation: Loss of control in flight
Weather
Visual (VMC) · Day
Status
Completed · report May 28, 2008
Report
Approved by Office Director
Parties
Fort Worth
FAA report
20080423833539A
Case key
67877

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's failure to maintain main rotor RPM and a safe rate of descent during the autorotation. A contributing factor was the gusty winds.

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: prop/rotor parametersAircraft › Aircraft oper/perf/capability · Incorrect use/operationHughes 269A: 7 casesAll aircraft: 182 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Not specifiedHughes 269A: 2 casesAll aircraft: 1,199 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

While practicing an autorotation maneuver, the pilot rolled the throttle back on and began a power recovery before reducing the throttle to continue the autorotation. The helicopter's airspeed decreased to approximately 40 knots at 300 feet above ground level (AGL). The pilot attempted to go-around but was unable to increase the rotor RPM (rotations per minute.) The helicopter continued to sink as the flight instructor attempted to increase power and reduce the sink rate. The flight instructor lowered the helicopter's nose in an attempt to increase airspeed. At 50 feet AGL the pilot reported that a gust of wind decreased the helicopter's airspeed further resulting in an increased sink rate. The flight instructor flared the helicopter as it approached the ground. The helicopter contacted the ground and rolled coming to rest on its side.

Factual narrative

While practicing an autorotation maneuver, the pilot rolled the throttle back on and began a power recovery before reducing the throttle to continue the autorotation. The helicopter's airspeed decreased to approximately 40 knots at 300 feet above ground level (AGL). The pilot attempted to go-around but was unable to increase the rotor RPM (rotations per minute.) The helicopter continued to sink as the flight instructor attempted to increase power and reduce the sink rate. The flight instructor lowered the helicopter's nose in an attempt to increase airspeed. At 50 feet AGL the pilot reported that a gust of wind decreased the helicopter's airspeed further resulting in an increased sink rate. The flight instructor flared the helicopter as it approached the ground. The helicopter contacted the ground and rolled coming to rest on its side.

Aircraft

Registration
N9064N
Reported as
Hughes 269A
Category
Helicopter
Serial number
96-0657
Airframe hours
7,327
Engine
Lycoming HIO-360-BIA, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Vista Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 1, 2008 · 56 hours before
Departed
ILE · Killeen, TX
Destination
ILE · Killeen, 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
30
Injuries
None
Certificates
Flight instructor, Private, Commercial
Instrument ratings
Helicopter
Medical
Class 1, Without waivers/limitations
Last flight review
September 1, 2007
Seat
Left
Flight hours
515 total · 250 in this make and model · 480 as pilot in command · 55 in the last 90 days · 40 in the last 30 days · 2 in the last 24 hours
Role
Student pilot
Age
43
Injuries
None
Certificate
Private
Medical
Class 2, Without waivers/limitations
Last flight review
September 1, 2006
Seat
Right
Flight hours
150 total · 80 in this make and model · 100 as pilot in command · 15 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
160° at 18 knots, gusting 28
Visibility
10 statute miles
Lowest ceiling
5,000 ft broken
Temperature
84 °F, dew point 64 °F
Altimeter
29.84 inHg
Observed at
ILE, 1 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.