ATL91LA180

NTSB accident investigation · Continental Copters MK5A · Franklin, GA · September 26, 1991

Accident · No injuriesLimited investigationFinal report
Date
September 26, 1991, 07:00 local (11:00 UTC)
Place
Franklin, GA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N62108Continental Copters MK5A
Weather
Visual (VMC) · Day
Status
Completed · report March 9, 1993
Report
Approved by Office Director
FAA report
19910926043169A
Case key
8477

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

An undetermined failure of the tail rotor control cable, which resulted in an uncontrolled collision with the ground.

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.

Airframe/component/system failure/malfunctionHover
Rotorcraft flight control,tail rotor cable - failure,totalCause
Rotorcraft flight control,tail rotor cable - undeterminedCause
Loss of control - in flightDescent - uncontrolled
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot had completed the first spraying of the morning and was hovering to the loading area when he experienced a loss of tail rotor control. The pilot maneuvered the helicopter away from the loading area and attempted a landing in an adjacent field. However, as the pilot maneuvered the helicopter, the main rotor blades struck the ground, and the helicopter crashed. Examination of the wreckage revealed that the left tail rotor control cable had failed near the pedal attach point. According to the pilot, the field cable was mailed to the NTSB for further examination; the cable never arrived. Failure mode was not determined.

Aircraft

Registration
N62108
Reported as
Continental Copters MK5A
Category
Helicopter
Serial number
TC-HFS-1
Engine
Lycoming VO-435-A1F, 260 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Gulf Helicopter
Registered owner
Gulf Helicopter
Airworthiness certificate
Special, Restricted (Special)
Last inspection
100 hour · May 31, 1991

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
45
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
20,000 total · 800 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 48 °F
Altimeter
29.00 inHg
Observed at
ANB, 40 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 N62108 · 1

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