MIA86MA182

NTSB accident investigation · Hughes 369HE · Jacksonville, FL · June 16, 1986

Accident · FatalMajor investigationFinal report
Date
June 16, 1986, 06:44 local (10:44 UTC)
Place
Jacksonville, FL
Injuries
2 fatal, 1 serious
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N9045FHughes 369HE
Weather
Visual (VMC) · Dawn
Status
Completed
Report
Approved by Office Director
Safety recommendations
Yes
FAA report
19860616081199A
Case key
31718

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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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
Rotor drive system,tail rotor drive shaft - fatigueCause
Forced landingDescent - emergency
Rotor drive system,tail rotor drive shaft - inadequateFactor
Maintenance,design change - not attainedFactor
Acft/equip,inadequate designManufacturerFactor
Emergency procedure - improperPilot in commandFactor
Autorotation - not attained
Loss of control - in flightDescent - emergency
Directional control - not maintained
In flight collision with objectDescent - uncontrolled
Object - tree(s)Factor
Object - utility poleFactor
In flight collision with terrain/waterDescent - uncontrolled

Analysis

A LCL tv stn had hired the oper to provide a helicopter for use in broadcasting an airborne traffic show. The plt took off with a rprtr & a camera man aboard. Drg a live traffic rprt, the acft was hdg eastbound at slow speed ovr a downtownarea at aprx 400 ft AGL. While it was at or nr a hover, witnesses heard a noise. The acft then entered a rapid spin to the rgt & bgn an unctld dscnt. Subsequently, it struck a tree & a utility pole, then impacted the gnd. After bystanders removed the occupants fm the wreckage, a fire erupted. The eng throttle grip was fnd in the full open (pwr on) psn. An inv showed the aft tail rotor drive shaft flexible (flex) coupling, pn 369H5501, had failed fm fatigue. AD 81-17-02 reqdthat all 369D'S with main rotor brakes (mrb's) be inspd at 100 hr intervals until the fwd flex couplings were replaced with fail safe couplings (pn 369H92564), but the original fwd & aft flex couplings were identical. Also, other models ofthe 369 had nrly identical mrb's, but the AD did not apply to these. N9045F, a Hughes 369HE, had no mrb.

Aircraft

Registration
N9045F
Reported as
Hughes 369HE
Category
Helicopter
Serial number
1090211E
Airframe hours
4,343
Engine
Allison 250-C18B, 250 horsepower, turbo shaft
Damage
Destroyed
Fire
On-Ground
Flight
Aerial observation · Part 91
Registered owner
Helicopter Serv. Of Jacksonvil
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 21, 1985 · 41 hours before
Departed
IRG · Jacksonville, FL

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
34
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Left
Toxicology
Performed
Flight hours
13,800 total

Weather

Conditions
Visual (VMC) · Dawn
Visibility
5 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 72 °F
Altimeter
30.00 inHg
Observed at
CRG, 9 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.