SEA00LA193

NTSB accident investigation · Hughes 269B · Laurel, MT · September 27, 2000

Accident · No injuriesLimited investigationFinal report
Date
September 27, 2000, 17:10 local (23:10 UTC)
Place
Laurel, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N9503FHughes 269B
Weather
Visual (VMC) · Day
Status
Completed · report July 2, 2001
Report
Approved by Office Director
FAA report
20000927015129A
Case key
50372

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

Failure to maintain aircraft control during hover operations. Inadequate remedial action by the pilot was a factor.

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 flightHover
Aircraft control - not maintainedPilot in commandCause
Remedial action - inadequatePilot in commandFactor

Analysis

While practicing takeoffs and landings, the student pilot inadvertently applied excessive collective input during the second takeoff of his first solo flight, and the helicopter climbed to approximately 12 feet AGL. This action resulted in a decay of rotor RPM and loss of tail rotor effectiveness, followed by a yaw to the right. The pilot was unable to regain control of the helicopter as it continued to spin, and ascending to approximately 50 feet AGL. After 2-3, 360-degree revolutions, the helicopter entered an uncontrolled descent and collided with the ground. The helicopter came to rest on its left side. No mechanical difficulties or malfunctions were reported.

Factual narrative

On September 27, 2000, about 1710 mountain daylight time (MDT), a Hughes 269B, N9503F, sustained substantial damage following a loss of control while hovering at Laurel Municipal Airport, Laurel, Montana. The helicopter is owned and operated by Northern Skies Aviation of Laurel, Montana, and was being operated as a solo instructional flight under the provisions of Title 14, CFR Part 91. The student pilot, the sole occupant of the helicopter, was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the local flight. The flight originated from Laurel, about 5 minutes prior to the accident.

The pilot submitted a written statement to the NTSB dated October 6, and reported that while practicing takeoffs and landings, he inadvertently applied excessive collective input during the second takeoff, and the helicopter climbed to approximately 12 feet above ground level (AGL). He wrote, in part: "This action caused a decay in rotor RPM and I felt a loss of tail rotor effectiveness, followed by a yaw to the right. I tried several different control inputs, but nothing seemed to help me gain control." The helicopter continued to spin as it ascended to approximately 50 feet AGL. After 2-3, 360-degree revolutions, the helicopter entered an uncontrolled descent and collided with the ground. The helicopter came to rest on its left side. The helicopter sustained substantial damage to the tail boom, fuselage and main rotor assembly.

At the time of the accident, the student pilot had accumulated 12 hours of dual instruction in the accident helicopter. The accident flight was the student pilot's first solo flight.

No mechanical difficulties or failures were reported.

Aircraft

Registration
N9503F
Reported as
Hughes 269B
Category
Helicopter
Serial number
1060271
Engine
Lycoming HIO-360-A1A, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Kent Potter
Airworthiness certificate
Standard, Normal
Departed
6S8 · Laurel, MT
Airport
6S8 · Laurel Municipal 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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificate
Student
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
13 total · 13 in this make and model · 13 in the last 90 days · 13 in the last 30 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
75 °F, dew point 28 °F
Altimeter
30.00 inHg
Observed at
BIL, 10 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.

Other investigations on N9503F · 1

Matched to the same aircraft by N-number and date.