ATL89LA145

NTSB accident investigation · Hughes 269A · Ozark, AL · May 11, 1989

Accident · No injuriesLimited investigationFinal report
Date
May 11, 1989, 08:20 local (13:20 UTC)
Place
Ozark, AL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N9049JHughes 269A
Weather
Visual (VMC) · Day
Status
Completed · report October 24, 1990
Report
Approved by Office Director
FAA report
19890511013039A
Case key
8027

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 excessive use of the cyclic control and the misjudged flare during a practice touchdown autorotation.

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.

Hard landingLanding - flare/touchdown
Misc rotorcraft,tail boom - separation
Cyclic - excessivePilot in commandCause
Flare - misjudgedPilot in commandCause

Analysis

During helicopter instructional flt a straight-in touchdown autorotation was attempted. The plt said witnesses observed the tail boom come up into the tip path plane. That event usually occurs when touch down is made on the heel of the skids & the main rotor is still pitched aft because of cylic input for the landing flare. As the helicopter rocks forward after the hard landing on the skid heel, the tail boom will be severed by the displaced main rotor. Following the tail boom separation the helicopter rotated about 120 degrees to the left.

Aircraft

Registration
N9049J
Reported as
Hughes 269A
Category
Helicopter
Serial number
75-0345
Airframe hours
5,116
Engine
Lycoming HIO-360, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Alabama Avi. & Tech. College
Registered owner
Alabama Aviat. & Tech. College
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 14, 1989 · 141 hours before
Airport
71J · Blackwell Field, runway 30, 4,200 × 80 ft, asphalt

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
52
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 1, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
10,761 total · 299 in this make and model · 9,431 as pilot in command · 75 in the last 90 days · 37 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 11 knots
Visibility
7 statute miles
Lowest ceiling
None
Temperature
66 °F, dew point 45 °F
Altimeter
30.00 inHg
Observed at
DHN, 20 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.