Aircraft Accident/Incident Report

Muncie, Indiana 47302
Tuesady, September 17, 1996 13:55 EST

NTSB Narrative Summary Released at Completion of Accident

Two pilots departed in the amateur built airplane for a local flight. About 10 miles from the departure airport, the airplane was observed to descend into the terrain. The activity of the airplane prior to the accident and/or the individual operating the airplane controls at the time was not determined. Subsequent to the accident an examination of the airplane determined that the carry-through portion of the horizontal stabilizer, which included the forward attachment for the vertical stabilizer, had become disconnected in flight. The particular part was not found. The entire right horizontal stabilizer and the outboard half of the right elevator departed the airplane in-flight. The lower rudder attach fitting bolt was missing at the impact site, and there was no evidence that the bolt was in place at the time of the accident.

NTSB Probable Cause Narrative

was the in-flight disconnection of the horizontal and vertical stabilizer forward attachments.

Event Information

Type of Event Accident
Event Date 9/17/1996
Event Day of the Week Tuesday
Time of Event 1355
Event Time Zone Eastern Standard Time
Event City MUNCIE
Event State INDIANA
Event Country --
Zipcode of the event site 47302
Event Date Year 1996
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1345 Eastern Standard Time
Direction of event from weather observation facility (degrees) 140
Weather Observation Facility ID KMI
Elevation of weather observation facility 937
Distance of event from weather observation facility (units?) 10
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) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Unknown
Wind Speed (knots) 10
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 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1629
NTSB Notification Source --
NTSB Notification Date Sep 17 1996 12:00AM
NTSB Notification Time 1900
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 8 2000 10:21AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N952JT
NTSB Number CHI96FA334
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 None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Thocker
Aircraft Model RV-4
Aircraft Series Identifier RV-4
Aircraft Serial Number 2633
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Unknown
Date of Last Inspection Apr 5 1996 12:00AM
Airframe hours since last inspection 50
Airframe Hours 50
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name JON THOCKER
Aircraft Owner Street Address 10056 SOMERSET DR.
Aircraft Owner City LOVELAND
Aircraft Owner State OH
Aircraft Owner Country
Aircraft Owner Zipcode 45140
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 Yes
Departure Airport Code MIE
Departure City
Departure State
Departure Country
Departure Time 1345
Departure Time Zone EST
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 Unknown
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 --