NTSB Identification: ATL88FA142.
The docket is stored on NTSB microfiche number 36613.
Accident occurred Thursday, April 14, 1988 in ALPHARETTA, GA
Probable Cause Approval Date: 07/26/1989
Aircraft: BALLOON WORKS AX-8B, registration: N74070
Injuries: 1 Serious,2 Minor,2 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE BALLOON COLLIDED WITH TWO LIGHT POLES SHORTLY AFTER LIFTOFF FROM A BASEBALL FIELD. THE FIELD WAS SURROUNDED BY TREES, FENCED COURT AND A BUILDING. THE BALLOON'S SUSPENSION CABLES COLLIDED WITH THE FIELD LIGHTING SYSTEM. THE ENVELOPE SEPARATED FROM THE BASKET AND CONTINUED EAST FOR 3/4 MILE. THE BALLOON IS CERTIFIED FOR A MAXIMUM GROSS WEIGHT OF 1660 LBS. THE GROSS WEIGHT AT TAKEOFF WAS 1728 LBS. THIS WEIGHT INCLUDED 150 LBS OPERATING MARGIN. THE PILOT REPORTED THAT THE BALLOON CLIMBED INITIALLY TO ABOUT 60 FEET BEFORE SETTLING INTO A LIGHT POLE. THE BASKET FELL INTO A FENCED TENNIS COURT. THERE WERE NO REPORTED STRUCTURAL PROBLEMS OR SYSTEM MALFUNCTIONS. THE BALLOON FLIGHT MANUAL AND A FAA ADVISORY CIRCULAR CAUTIONS PILOTS ABOUT WIND GENERATED FALSE LIFT.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PERFORMANCE DATA..INACCURATE..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PREFLIGHT PLANNING/PREPARATION..INADEQUATE..PILOT IN COMMAND


Contributing Factors

OBJECT..POLE


Contributing Factors

WIND INFORMATION..MISJUDGED..PILOT IN COMMAND

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