Aircraft Accident/Incident Report

Brookville, Ohio 45309
Thursday, September 16, 1999 8:46 EDT

NTSB Narrative Summary Released at Completion of Accident

The airplane was destroyed on impact with level terrain and a post impact fire. A witness said, 'We saw the plane facing northeast, the plane appeared to be hovering, or facing into the wind and hardly moving forward. He banked out of that, flew a circuit and did the same hovering maneuver again, then went into a spin. We heard the engine cut off, come back on, then go off again. It disappeared below the trees and we saw smoke rise above the trees.' The fuselage aft of the cockpit was bent downward approximately 30 degrees. Control system continuity was established. All flight control cables were found intact. The horizontal stabilizer jackscrew indicated nose down trim. The engine was found to rotate freely and engine continuity was established. The upper set of spark plugs were examined and no anomalies were detected. Thumb compression was established on cylinders 2,3 and 4. Cylinder number 1 was removed and no anomalies were detected. The left magneto was removed and was found to produce a spark when rotated by hand. The right magneto did not produce a spark and had evidence of heat damage.

NTSB Probable Cause Narrative

the stall/spin encountered by the pilot. A factor was the intentional slow flight.

Event Information

Type of Event Accident
Event Date 9/16/1999
Event Day of the Week Thursday
Time of Event 846
Event Time Zone Eastern Daylight Time
Event City BROOKVILLE
Event State OHIO
Event Country --
Zipcode of the event site 45309
Event Date Year 1999
Event Date Month 9
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 Weather Observation Facility
Time of the weather observation 851 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 77
Weather Observation Facility ID DAY
Elevation of weather observation facility 1010
Distance of event from weather observation facility (units?) 11
Time Zone of the weather observation EDT
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) 9
Air Temperature at event time (in degrees celsius) 10
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 330
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) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
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) 1640
NTSB Notification Source --
NTSB Notification Date Sep 16 1999 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record May 11 2001 4:05AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3223N
NTSB Number CHI99FA343
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model J-3
Aircraft Series Identifier J-3
Aircraft Serial Number 22415
Certified Max Gross Weight 1220
Aircraft Category Airplane
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 Apr 1 1999 12:00AM
Airframe hours since last inspection --
Airframe Hours 4754
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name MICHAEL L. BERTKE
Aircraft Owner Street Address 402 SUMMIT AVE
Aircraft Owner City TROY
Aircraft Owner State OH
Aircraft Owner Country
Aircraft Owner Zipcode 45373
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 No
Departure Point Same as Event Yes
Departure Airport Code I62
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
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 11 2001 4:05AM
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 --