Aircraft Accident/Incident Report

Baton Rouge, Louisiana 70821
Saturday, August 5, 1989 17:45 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT WAS PARTICIPATING IN THE U.S. NATIONAL HOT AIR BALLOON CHAMPIONSHIP. VIDEO TAPES SHOWED THAT AT AN UNDETERMINED ALT AFTER TAKEOFF, THE BALLOON'S RATE OF ASCENT INCREASED SUBSTANTIALLY. SUBSEQUENTLY, AT ABOUT 3000 FT AGL, FABRIC WAS OBSERVED TO BEGIN FLAPPING & THE BALLOON ENTERED A RAPID DESCENT WITH THE BURNER OPERATING. IT THEN IMPACTED IN AN UNCONTROLLED DESCENT. AN EXAM OF THE BALLOON REVEALED EVIDENCE OF OVERHEATING OF THE FABRIC. THERE WAS EVIDENCE THAT OVERHEATING HAD OCCURRED OVER A LONG PERIOD OF TIME. THE REQUIRED TEMP GAGE, WHICH SHOULD HAVE BEEN MOUNTED IN THE TOP OF THE GONDOLA, WAS NOT FOUND.

NTSB Probable Cause Narrative

THE PILOT EXCEEDED THE TEMPERATURE LIMITATIONS OF THE BALLOON DURING THE CLIMB, WHICH RESULTED IN FAILURE OF THE FRABRIC. FACTORS RELATED TO THE ACCIDENT WERE: THE PREVIOUS HEAT DAMAGE TO THE FRABRIC, AND THE LACK OF MAINTENANCE BY THE PILOT/OWNER.

Event Information

Type of Event Accident
Event Date 8/5/1989
Event Day of the Week Saturday
Time of Event 1745
Event Time Zone Central Daylight Time
Event City BATON ROUGE
Event State LOUISIANA
Event Country --
Zipcode of the event site 70821
Event Date Year 1989
Event Date Month 8
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1753 Central Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID BTR
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 5000
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) 15
Air Temperature at event time (in degrees celsius) 35
Dew Point at event time (in degress fahrenheit) 23
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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) 1147
NTSB Notification Source --
NTSB Notification Date Aug 5 1989 12:00AM
NTSB Notification Time 1745
Fiche Number and/or location -used to find docket information 39299
Date of most recent change to record Dec 13 2000 12:58PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N27113
NTSB Number FTW89FA143
Missing Aircraft Indicator N
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 Balloon Works
Aircraft Model FIREFLY 6B
Aircraft Series Identifier FIREFLY 6B
Aircraft Serial Number 6670
Certified Max Gross Weight 1050
Aircraft Category Balloon
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 --
Number of Engines --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 1 1988 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name ROBERT A MOCK
Aircraft Owner Street Address BOX 957
Aircraft Owner City PAONIA
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 81428
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) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1745
Departure Time Zone CDT
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 Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --