Aircraft Accident/Incident Report

Ewell, Alabama 36360
Saturday, November 25, 1989 11:00 CST

NTSB Narrative Summary Released at Completion of Accident

THE PRIVATE RATED PILOT HAD ATTEMPTED A PRACTICE 180 DEGREE AUTOROTATION. IT WAS ABORTED BY THE INSTRUCTOR BECAUSE OF IMPROPER LINE UP BY THE PILOT UNDER INSTRUCTION. A SECOND AUTOROTATION WAS ATTEMPTED BY THE INSTRUCTOR TO DEMONSTRATE CORRECT PROCEDURE. THE INSTRUCTOR REPORTED THAT THE ENGINE DID NOT RESPOND TO AN ATTEMPTED POWER RECOVERY. HE ADDED COLLECTIVE PITCH TO AVOID TREES AND REACHED AN OPEN FIELD WITH LOW ROTOR RPM. THE HELICOPTER IMPACTED HARD & WAS SUBSTANTIALLY DAMAGED. LATER EXAMINATION OF THE ENGINE DID NOT REVEAL ANY DISCREPANCIES WHICH ACCOUNTED FOR THE REPORTED LOSS OF POWER.

NTSB Probable Cause Narrative

THE LOSS OF ENGINE POWER, FOR UNDETERMINED REASONS, AT LOW ALTITUDE DURING A PRACTICE AUTOROTATION. CONTRIBUTING TO THE ACCIDENT WAS THE INSTRUCTOR'S FAILURE TO PROPERLY PLAN THE DEMONSTRATED AUTOROTATION SO AS TO PRECLUDE AN ACCIDENT, IN THE EVENT THAT POWER WAS NOT AVAILABLE.

Event Information

Type of Event Accident
Event Date 11/25/1989
Event Day of the Week Saturday
Time of Event 1100
Event Time Zone Central Standard Time
Event City EWELL
Event State ALABAMA
Event Country --
Zipcode of the event site 36360
Event Date Year 1989
Event Date Month 11
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 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1122 Central Standard Time
Direction of event from weather observation facility (degrees) 120
Weather Observation Facility ID DHN
Elevation of weather observation facility 401
Distance of event from weather observation facility (units?) 5
Time Zone of the weather observation CST
Lighting Conditions Day
Lowest Ceiling Height 3000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
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) 16
Dew Point at event time (in degress fahrenheit) 10
Wind Direction (degrees magnetic) 120
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) 30
Density Altitude (feet) 500
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 2
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2085
NTSB Notification Source --
NTSB Notification Date Nov 25 1989 12:00AM
NTSB Notification Time 1450
Fiche Number and/or location -used to find docket information 41578
Date of most recent change to record Dec 13 2000 1:11PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1358X
NTSB Number ATL90LA030
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 47G-3B1
Aircraft Series Identifier 47G-3B1
Aircraft Serial Number 6569
Certified Max Gross Weight 2950
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 May 17 1989 12:00AM
Airframe hours since last inspection --
Airframe Hours 3717
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name BILL WILLIAMS
Aircraft Owner Street Address 407 PETERS DR.
Aircraft Owner City OZARK
Aircraft Owner State AL
Aircraft Owner Country
Aircraft Owner Zipcode 36360
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) Personal
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code 71J
Departure City OZARK
Departure State AL
Departure Country
Departure Time 1000
Departure Time Zone CST
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 Approach
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 --