MIA85LA185

NTSB accident investigation · Hughes 269C · St.Petersburg, FL · June 8, 1985

Accident · No injuriesLimited investigationFinal report
Date
June 8, 1985, 10:45 local (14:45 UTC)
Place
St.Petersburg, FL
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N8657FHughes 269C
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850608023709A
Case key
31409

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.

Loss of control - on ground/waterLanding - flare/touchdown
Landing gear,skid assembly - failure,totalFactor
Flight controls - improper use ofPilot in commandCause
Rotor drive system,clutch assembly - failure,totalFactor

Analysis

The helicopter was landing after a training flight with an instructor pilot and a non-rated-non-certificated student pilot on board. As the helicopter touched down a severe resonant vibration started. The instructor stated that he attempted to lift off the ground but the collective imput gave no response. The clutch pulley bracket was found failed due to overload. Witnesses described the vibration as typical of ground resonance.

Aircraft

Registration
N8657F
Reported as
Hughes 269C (269-C)
Category
Helicopter
Serial number
7-0660
Engine
Avco Lycoming HIO-360, 190 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
West Florida Helicopters
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 4, 1985 · 10 hours before
Departed
SPG · St. Petersburg, FL
Airport
SPG · Albert Whitted

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
36
Certificates
Flight instructor, Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,360 total · 103 in this make and model · 2,100 as pilot in command · 150 in the last 90 days · 24 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 6 knots
Visibility
7 statute miles
Lowest ceiling
None
Altimeter
29.00 inHg
Observed at
SPG, 1 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.