Kaman Aerospace Airport
Aircraft Accident/Incident Report

Bloomfield, Connecticut 06002
Tuesady, January 27, 1998 11:50 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot was on a familiarization flight of a new helicopter. He had successfully completed hovering, several takeoffs and landings, and two hovering autorotations. He had to discontinue his maneuvers in the traffic pattern due to traffic, so he requested to use the pad near the plant. During a hovering autorotation at 5 feet AGL, the helicopter suddenly drifted to the left. Despite his efforts correcting with right cyclic, the helicopter continued to roll to the left. It touched down on the left main landing gear, followed by the nosewheel, and came to rest on its left side. Of the 12 hours the helicopter had accumulated, the pilot had 9 hours in this make and model. Examination of the wreckage did not disclose any evidence of mechanical malfunction with the helicopter or engine, and the pilot did not report any.

NTSB Probable Cause Narrative

The pilot's failure to maintain control during autorotation, which resulted in an unleveled attitude touchdown, roll over, and collision with the ground.

Event Information

Type of Event Accident
Event Date 1/27/1998
Event Day of the Week Tuesday
Time of Event 1150
Event Time Zone Eastern Standard Time
Event City BLOOMFIELD
Event State CONNECTICUT
Event Country --
Zipcode of the event site 06002
Event Date Year 1998
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport KAMAN AEROSPACE
Event Location Nearest Airport ID CT05
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 164
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1151 Eastern Standard Time
Direction of event from weather observation facility (degrees) 30
Weather Observation Facility ID BDL
Elevation of weather observation facility 174
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -4
Dew Point at event time (in degress fahrenheit) -13
Wind Direction (degrees magnetic) 330
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) 30
Density Altitude (feet) --
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 --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 977
NTSB Notification Source --
NTSB Notification Date Jan 27 1998 12:00AM
NTSB Notification Time 1245
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 23 2001 1:56PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N135KA
NTSB Number IAD98LA024
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 Kaman
Aircraft Model K-1200
Aircraft Series Identifier K-1200
Aircraft Serial Number 094-023
Certified Max Gross Weight 6500
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Nov 19 1997 12:00AM
Airframe hours since last inspection 12
Airframe Hours 12
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name KAMAN AEROSPACE CORP
Aircraft Owner Street Address P.O. BOX 2
Aircraft Owner City BLOOMFIELD
Aircraft Owner State CT
Aircraft Owner Country
Aircraft Owner Zipcode 06002
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code CT05
Departure City BLOOMFIELD
Departure State CT
Departure Country
Departure Time 1111
Departure Time Zone EST
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 23 2001 1:56PM
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 --