Griffith Airport
Aircraft Accident/Incident Report

Griffith, Indiana 46319
Thursday, July 30, 1987 16:00 CDT

NTSB Narrative Summary Released at Completion of Accident

THE TAIL BOOM OF THE HELICOPTER WAS SEVERED AFTER ROTOR BLADE CONTACT DURING A HARD LANDING. THE ACC OCCURRED DURING AN AUTOROTATION DEMO FOR THE POLICE DEPT WITH A POWER RECOVERY. APPLICATION OF POWER WAS LATE AND THE HELICOPTER LANDED HARD AND BOUNCED. THE BOUNCE FLEXED THE MAIN ROTOR INTO THE TAIL BOOM.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/30/1987
Event Day of the Week Thursday
Time of Event 1600
Event Time Zone Central Daylight Time
Event City GRIFFITH
Event State INDIANA
Event Country --
Zipcode of the event site 46319
Event Date Year 1987
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport GRIFFITH
Event Location Nearest Airport ID 05C
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 635
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1545 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID GYY
Elevation of weather observation facility 591
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 15000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 5
Air Temperature at event time (in degrees celsius) 31
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 810
NTSB Notification Source --
NTSB Notification Date Jul 30 1987 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information 33999
Date of most recent change to record Dec 13 2000 2:35PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N42405
NTSB Number CHI87LA180
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 369HS
Aircraft Series Identifier 369HS
Aircraft Serial Number 9204165
Certified Max Gross Weight 2550
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TRADEMASTERS INTERNATIONAL
Aircraft Owner Street Address 2017 N 25TH AVE.
Aircraft Owner City FRANKLIN PARK
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60131
Operator is an individual? --
Operator Name TRADEMASTERS INTERNATIONAL
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2017 N. 25TH AVE.
Operator City FRANKLIN PARK
Operator State IL
Operator Country
Operator Zip code 60131
Operator Code
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1500
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --