Aircraft Accident/Incident Report

Paducah, Kentucky 42003
Monday, July 14, 1997 18:00 EDT

NTSB Narrative Summary Released at Completion of Accident

The flight instructor and student pilot had departed from a confined area and were climbing through about 200 feet AGL, at 60 knots, when the engine lost power. The flight instructor took control of the helicopter and performed an autorotation to an open field. Both pilots reported the touchdown was harder than expected during which the right skid collapsed. The flight instructor had performed autorotations to a power recovery, but could not remember the last time he had performed a touchdown autorotation. The manufacturer reported that the blades had flapping damage, and indicated no significant rotation at impact. Examination of the helicopter revealed that the lower fuselage fairing had separated from the fuselage. After separation, the wire inside of the intake hose that supplied air to the fuel control unit pulled out and the intake hose collapsed into the engine air intake, and blocked it. The attachment holes on the lower fuselage fairing were found to be elongated.

NTSB Probable Cause Narrative

The failure of maintenance personnel to identify and correct the worn holes on the lower fuselage fairing and the failure of the flight instructor to maintain main rotor RPM during the autorotative landing. A contributing factor was the flight instructor's lack of recent experience in performing autorotations to a landing.

Event Information

Type of Event Accident
Event Date 7/14/1997
Event Day of the Week Monday
Time of Event 1800
Event Time Zone Eastern Daylight Time
Event City PADUCAH
Event State KENTUCKY
Event Country --
Zipcode of the event site 42003
Event Date Year 1997
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
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 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) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1936
NTSB Notification Source --
NTSB Notification Date Jun 14 1997 12:00AM
NTSB Notification Time 2010
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 12:26PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9398F
NTSB Number NYC97LA138
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 269B
Aircraft Series Identifier 269B
Aircraft Serial Number 89-0129
Certified Max Gross Weight 1760
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 27 1996 12:00AM
Airframe hours since last inspection 23
Airframe Hours 4480
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name STEVEN K. ROBERTSON
Aircraft Owner Street Address 4406 MARILOIS LANE
Aircraft Owner City KNOXVILLE
Aircraft Owner State TN
Aircraft Owner Country
Aircraft Owner Zipcode 37938
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code KY29
Departure City
Departure State
Departure Country
Departure Time 1715
Departure Time Zone EDT
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 Cruise
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 --