Freemont Airport
Aircraft Accident/Incident Report

Freemont, California 94538
Thursday, September 17, 1987 13:50 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PURPOSE OF THE FLT WAS TO PROVIDE INSTRUCTION TO A FOREIGN NATIONAL, WHO HELD A U.S. PRIVATE HELICOPTER RATING. THE INSTRUCTOR (CFI) RPRTD THAT DURING A PRACTICE AUTOROTATION, HE ANNOUNCED TWICE FOR THE STUDENT TO FLARE AS THE HELICOPTER WAS PASSING THRU ABOUT 50' AGL. THE CFI THEN TOOK CONTROL & INITIATED A PWR RECOVERY. HOWEVER, THERE WAS EVIDENCE THE HELICOPTER TOUCHED DOWN IN A NOSE HIGH ATTITUDE & THEN THE MAIN ROTOR BLADES CONTACTED THE TAIL BOOM. THE HELICOPTER CAME TO REST 138' FROM WHERE IT INITIALLY TOUCHED DOWN.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/17/1987
Event Day of the Week Thursday
Time of Event 1350
Event Time Zone Pacific Daylight Time
Event City FREEMONT
Event State CALIFORNIA
Event Country --
Zipcode of the event site 94538
Event Date Year 1987
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport FREEMONT
Event Location Nearest Airport ID Q59
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 4
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1345
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID SJC
Elevation of weather observation facility 56
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Partial Obscuration
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 1800
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2482
NTSB Notification Source --
NTSB Notification Date Sep 17 1987 12:00AM
NTSB Notification Time 1503
Fiche Number and/or location -used to find docket information 36779
Date of most recent change to record Dec 13 2000 2:49PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1101K
NTSB Number LAX87LA339
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 269C
Aircraft Series Identifier 269C
Aircraft Serial Number 311033
Certified Max Gross Weight 2050
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 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Aug 26 1987 12:00AM
Airframe hours since last inspection 39
Airframe Hours 1366
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name STEPHEN B. SULLIVAN
Aircraft Owner Street Address 21498 SARAHILLS DRIVE
Aircraft Owner City SARATOGA
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 95070
Operator is an individual? --
Operator Name ARIS HELICOPTERS LTD
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1138 COLEMAN AVENUE
Operator City SAN JOSE
Operator State CA
Operator Country
Operator Zip code 95110
Operator Code CAXA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code SJC
Departure City SAN JOSE
Departure State CA
Departure Country
Departure Time 1325
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
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 31
Runway Length 2310
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --