Aircraft Accident/Incident Report

Benezette, Pennsylvania 15821
Friday, May 13, 2011 18:05 EDT

NTSB Narrative Summary Released at Completion of Accident

According to several witnesses, the airplane was in cruise flight at "high" altitude when the wings rocked and the airplane entered an uncontrolled descent. The airplane "spun a long time" and the engine sound was described as surging during the descent. The pilot regained airplane control, leveled briefly, the sound of the engine became smooth and continuous, and the airplane climbed. Soon after, the wings rocked again; the airplane departed controlled flight, descended behind trees and terrain, and the sounds of impact were heard. A review of the pilot’s records and employment history revealed demonstrated abilities in many different types of airplanes, in all types of environments and weather conditions. An examination of the maintenance records and the wreckage revealed a properly restored and maintained airplane, with no preimpact mechanical malfunctions or failures noted that would have precluded normal operation. Interviews and the pilot’s medical records revealed he had a history of diabetes, and diabetes-related health issues that included neuropathy (numbness) of the feet. Review of the pilot’s medical records revealed that his diabetes was controlled by medication and diet and that he was eligible for a Federal Aviation Administration medical certificate. A review of the autopsy and toxicology reports revealed no obvious medical event suffered by the pilot before the accident.

NTSB Probable Cause Narrative

The pilot's loss of airplane control for reasons that could not be determined from the available evidence.

Event Information

Type of Event Accident
Event Date 5/13/2011
Event Day of the Week Friday
Time of Event 1805
Event Time Zone Eastern Daylight Time
Event City Benezette
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15821
Event Date Year 2011
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 412020N
Event Location Longitude 0782229W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1756 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID DUJ
Elevation of weather observation facility 1817
Distance of event from weather observation facility (units?) --
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) 23
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.72
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KDUJ 132156Z AUTO 17007KT 140V200 10SM CLR 23/17 A
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) 31291
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 Jul 10 2013 10:43AM
User who most recently changed record coln
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7603D
NTSB Number ERA11FA299
Missing Aircraft Indicator --
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 PIPER
Aircraft Model PA-22-150
Aircraft Series Identifier --
Aircraft Serial Number 22-5304
Certified Max Gross Weight 2000
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 26 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 2725
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name OLMSTED AARON JR
Aircraft Owner Street Address --
Aircraft Owner City ELLINGTON
Aircraft Owner State CT
Aircraft Owner Country USA
Aircraft Owner Zipcode 06029-2705
Operator is an individual? No
Operator Name OLMSTED AARON JR
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City ELLINGTON
Operator State CT
Operator Country USA
Operator Zip code 06029-2705
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 No
Departure Airport Code BKL
Departure City Cleveland
Departure State OH
Departure Country USA
Departure Time 1630
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code 7B6
Destination City Warehouse Point
Destination State CT
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 2 2013 2:24PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --