N9014W

Substantial
Minor

AEROSTAR INTERNATIONAL INC S-77AS/N: S77A-3024

Accident Details

Date
Wednesday, July 2, 2008
NTSB Number
LAX08CA209
Location
Boulder, CO
Event ID
20080917X01477
Coordinates
40.060554, -105.207496
Aircraft Damage
Substantial
Highest Injury
Minor
Fatalities
0
Serious Injuries
0
Minor Injuries
2
Uninjured
5
Total Aboard
7

Probable Cause and Findings

An encounter with a sudden gust of wind, which rendered the balloon uncontrollable and led to a collision with a tree.

Aircraft Information

Registration
N9014W
Make
AEROSTAR INTERNATIONAL INC
Serial Number
S77A-3024
Engine Type
Turbo-shaft
Year Built
1997
Model / ICAO
S-77ASGUP
Aircraft Type
Fixed Wing Multi Engine
No. of Engines
4

Registered Owner (Historical)

Name
COLORADO ROCKY BALLOONING LLC
Address
PO BOX 2698
Status
Deregistered
City
DILLON
State / Zip Code
CO 80435-2698
Country
United States

Analysis

In a written statement, the pilot reported that he performed a normal cold-inflation of the balloon. He instructed the passengers to board and prepared for flight by arranging lines. The balloon was suddenly overcome by a gust of wind, pushing the envelope into a tree. The pilot elected to abort the flight due to increasing wind speeds. The balloon was suddenly dragged upward by the wind, but several rotation vent lines remained entangled in the tree. As the lines became taut, they ripped a section of material from the envelope, resulting in several long vertical tears (4 to 5 yards in length).

The pilot opened the burners in an attempt to gain control. As the balloon's airspeed increased to the wind speed, it descended and the basket collided with the wall of a building. It was again pulled up by the wind, and the pilot again applied heat to gain control. The balloon descended, and collided with a tree. The basket came to rest about 20 feet above terrain.

The pilot added that there were no preimpact mechanical malfunctions or failures with the balloon. He stated that the weather information he gathered via the Flight Service Station (FSS) did not predict wind gusts.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# LAX08CA209