Dansville Municiple Airport
Aircraft Accident/Incident Report

Dansville, New York 14437
Saturday, August 25, 2012 15:30 EDT

NTSB Narrative Summary Released at Completion of Accident

During the evening before the accident, the glider was assembled, and the pilot flew it for about 30 minutes uneventfully. On the day of the accident, after flying locally for about 3 hours, the glider was about 1 mile from the departure airport when witnesses reported that the glider started rolling back and forth into 90-degree banks. After three or four rolls, the glider descended nose-down to the ground and impacted a field in a flat attitude. Examination of the wreckage did not reveal any preimpact mechanical malfunctions that would have precluded normal operation. About 3 years before the accident, the pilot underwent a procedure to repair an aneurysm of the ascending aorta combined with placement of a single vessel coronary artery bypass graft. He subsequently received a medical certificate and reported the surgery and that he was taking metoprolol (a beta blocker used to treat hypertension and prevent heart attacks), simvastatin (a cholesterol lowering drug), and lisinopril (a blood pressure medicine). Although the pilot’s medical certificate had expired about 1 month before the accident, he was not required to possess a current medical certificate as a glider pilot. Before the accident flight, the pilot remarked to a friend that he was not feeling well. The friend added that the day was very hot and that the pilot did not drink water before the flight or bring any water with him. Autopsy results indicated that there was no evidence to suggest any direct effect of the pilot’s cardiovascular disease (heart attack) in his ability to control the glider. Toxicological testing revealed levels of diphenhydramine in the pilot’s blood that were well above therapeutic levels. Diphenhydramine is a sedating antihistamine used to treat allergy symptoms and as a sleep aid. It is probable that the cognitive and psychomotor impairment caused by diphenhydramine contributed to the pilot’s loss of control in this accident.

NTSB Probable Cause Narrative

The pilot’s failure to maintain glider control while maneuvering. Contributing to the accident was the pilot’s impairment due to an over-the-counter sedating antihistamine.

Event Information

Type of Event Accident
Event Date 8/25/2012
Event Day of the Week Saturday
Time of Event 1530
Event Time Zone Eastern Daylight Time
Event City Dansville
Event State NEW YORK
Event Country --
Zipcode of the event site 14437
Event Date Year 2012
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 423442N
Event Location Longitude 0774321W
Event Location Airport Dansville Municiple Airport
Event Location Nearest Airport ID DSV
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation 655
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1554 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID DSV
Elevation of weather observation facility 655
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 31
Dew Point at event time (in degress fahrenheit) 14
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.18
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 33135
NTSB Notification Source FAA Eastern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 16 2014 3:15PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N438AS
NTSB Number ERA12LA528
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SCHLEICHER
Aircraft Model ASW-19
Aircraft Series Identifier --
Aircraft Serial Number 19230
Certified Max Gross Weight 890
Aircraft Category Glider
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 1
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 18 2012 12:00AM
Airframe hours since last inspection 3
Airframe Hours 1162
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WORLD ON A STRING INC
Aircraft Owner Street Address --
Aircraft Owner City ROCHESTER
Aircraft Owner State NY
Aircraft Owner Country USA
Aircraft Owner Zipcode 14614-1924
Operator is an individual? Yes
Operator Name James J Rizzo
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Fairport
Operator State NY
Operator Country USA
Operator Zip code 14450
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 No
Departure Point Same as Event Yes
Departure Airport Code DSV
Departure City Dansville
Departure State NY
Departure Country USA
Departure Time 1230
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code DSV
Destination City Dansville
Destination State NY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 16 2014 3:31PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location 14
Runway Length 3500
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --