ATL95LA175

NTSB accident investigation · Schweizer 269C · Hoover, AL · September 27, 1995

Accident · Serious injuriesLimited investigationFinal report
Date
September 27, 1995, 17:11 local (22:11 UTC)
Place
Hoover, AL
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N267RWSchweizer 269C
Weather
Visual (VMC) · Day
Status
Completed · report April 18, 1996
Report
Approved by Office Director
FAA report
19950927030399A
Case key
3629

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 directional control when he positioned the helicopter in a hover so as to induce a loss of tail rotor effectiveness.

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
Rotor system,tail rotor - stallCause
Tail rotor effectiveness - not maintainedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The flight departed Birmingham airport with a VFR clearance for a local photo shoot. The helicopter was flying above a ridge line and made a right turn into a hover. At this point it began to rotate to the right about the main rotor shaft, and spiraled to the ground. The pilot stated that there was no mechanical malfunction, and the helicopter had lost tail rotor effectiveness. Examination of the wreckage revealed that the tail rotor drive shaft had broken in overload.

Factual narrative

On September 27, 1995, about 1711 central daylight time, a Schweizer 269C, N267RW, collided with the ground during an uncontrolled descent from a hover near Hoover, Alabama. The helicopter was operated by Rotor Wing, Inc., under the provisions of 14 CFR Part 91, and visual flight rules. Visual meteorological conditions prevailed. A flight plan was not filed for the photographic flight. The pilot and his passenger sustained serious injuries, and the helicopter was substantially damaged. Origination of the flight was Hayden, Alabama, at an unspecified time.

According to the operator, the pilot stated that there were no mechanical malfunctions of the helicopter. Witnesses observed the helicopter flying alongside a ridge line. The helicopter slowed, made what was described as a pedal turn to the right, and entered a hover, out of ground effect. As it stopped, the helicopter "rocked laterally," began to rotate about the main rotor shaft, then transitioned into a descending right spiral and impacted the ground. The pilot later stated that he had gotten into a hover and lost tail rotor effectiveness.

The examination of the wreckage revealed that there was fuel on board, in both tanks. Flight control continuity was found to the mast, and the tail rotor drive shaft had snapped. The throttle was closed, magnetos on both, the mixture full rich, the master switch was "off" (turned off by rescue), the fuel valve was on, the clutch was on, and the fuel boost pump was on. Only pages 1 and 2 of the Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, were received.

Aircraft

Registration
N267RW
Reported as
Schweizer 269C
Category
Helicopter
Serial number
1351
Airframe hours
978
Engine
Lycoming HI0-360D1A, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Other work use · Part 91
Registered owner
Rotor Wing, Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 12, 1995 · 28 hours before
Departed
NONE · Hayden, AL

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
36
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Flight hours
1,255 total · 90 in this make and model · 12 in the last 90 days · 8 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
40° at 5 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
BHM, 11 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.