Elmira Corning Regional Airport
Aircraft Accident/Incident Report

Elmira, New York 14902
Monday, November 15, 1993 11:00 EST

NTSB Narrative Summary Released at Completion of Accident

THE PILOT AND CO-PILOT WERE PRACTICING AUTOROTATIONS DURING A TEST FLIGHT. DURING THEIR SEVENTH AUTOROTATION, AT AN ALTITUDE OF ABOUT 100 FEET ABOVE THE GROUND, THE ENGINE LOST POWER. THE AUTOROTATION WAS CONTINUED AND THE CREW REPORTED THEY ENCOUNTERED A DOWNDRAFT. THE HELICOPTER LANDED HARD AND WAS SUBSTANTIALLY DAMAGED. THE CONTROL TOWER REPORTED THE WINDS FROM A MAGNETIC BEARING OF 240 DEGREES AT 15 KNOTS WITH GUSTS TO 30 KNOTS. IN HIS WRITTEN REPORT CONCERNING THE ACCIDENT, THE PILOT SAID THE WINDS WERE FROM A MAGNETIC BEARING OF 230 DEGREES VARIABLE TO 270 DEGREES AT 23 KNOTS WITH GUSTS TO 35 KNOTS. THE MANUFACTURER'S FLIGHT MANUAL STATES: 'CONTROLLABILITY HAS BEEN SHOWN TO BE ADEQUATE IN 20 MPH WINDS FROM ANY DIRECTION.' THE REASON FOR THE ENGINE'S LOSS OF POWER WAS NOT DETERMINED.

NTSB Probable Cause Narrative

A LOSS OF ENGINE POWER AT A CRITICAL POINT ON A PRACTICE AUTOROTATION, AND FAILURE OF THE PILOT TO ATTAIN A FLARE FOR THE LANDING. FACTORS RELATED TO THE ACCIDENT WERE: THE ADVERSE WIND AND DOWNDRAFT.

Event Information

Type of Event Accident
Event Date 11/15/1993
Event Day of the Week Monday
Time of Event 1100
Event Time Zone Eastern Standard Time
Event City ELMIRA
Event State NEW YORK
Event Country --
Zipcode of the event site 14902
Event Date Year 1993
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ELMIRA CORNING REGIONAL
Event Location Nearest Airport ID ELM
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 995
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1058 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID ELM
Elevation of weather observation facility 955
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 15
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 30
Altimeter Setting at event time (in. Hg) 29
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 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 2056
NTSB Notification Source --
NTSB Notification Date Nov 15 1993 12:00AM
NTSB Notification Time 1130
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Sep 25 2006 4:01PM
User who most recently changed record NTSB\ZUZL
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N41S
NTSB Number BFO94LA011
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 SCHWEIZER
Aircraft Model 269C
Aircraft Series Identifier 269C
Aircraft Serial Number S1660
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 4
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SCHWEIZER AIRCRAFT CORPORATION
Aircraft Owner Street Address BOX 147
Aircraft Owner City ELMIRA
Aircraft Owner State NY
Aircraft Owner Country
Aircraft Owner Zipcode 14902
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
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 Yes
Departure Point Same as Event Yes
Departure Airport Code ELM
Departure City
Departure State
Departure Country
Departure Time 0
Departure Time Zone
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State NY
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 28
Runway Length 5202
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --