CHI85FA210

NTSB accident investigation · Hughes 300 · Joliet, IL · May 26, 1985

Accident · Minor injuriesField investigationFinal report
Date
May 26, 1985, 18:15 local (23:15 UTC)
Place
Joliet, IL
Injuries
1 minor
Damage
Destroyed
Phase of flight
Taxi
Aircraft
N404ZHughes 300
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850526020839A
Case key
12838

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

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.

On ground/water encounter with terrain/waterTaxi - aerial
Rotorcraft flight controls - improper use ofPilot in commandCause

Analysis

The helicopter experienced extreme vertical vibrations while landing from a hover. Inadvertent ground contact during uncontrolled oscillations resulted in destruction of the helicopter.

Aircraft

Registration
N404Z
Reported as
Hughes 300
Category
Helicopter
Serial number
1201007
Airframe hours
1,714
Engine
Lycoming HIO-360D7A, 200 horsepower, reciprocating
Damage
Destroyed
Flight
Positioning · Part 91
Operator
Eagle Air Helicopters, doing business as Eagle Air Helicopters
Registered owner
404z Partnership
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · May 21, 1985 · 20 hours before
Departed
Joliet, IL
Destination
JOT · Joliet, IL

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
29
Certificate
Private
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
76 total · 54 in this make and model · 29 as pilot in command · 5 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 15 knots
Visibility
20 statute miles
Lowest ceiling
20,000 ft broken
Temperature
90 °F, dew point 52 °F
Altimeter
29.00 inHg
Observed at
DPA

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.