N2447Z

Substantial
None

General Balloon Corp. AX-6S/N: 447

Accident Details

Date
Sunday, January 21, 2007
NTSB Number
LAX07CA094
Location
San Martin, CA
Event ID
20070305X00251
Coordinates
37.080554, -121.597221
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

The pilot's failure to maintain adequate altitude/clearance from power lines.

Aircraft Information

Registration
N2447Z
Make
GENERAL BALLOON CORP.
Serial Number
447
Engine Type
Turbo-jet
Year Built
1978
Model / ICAO
AX-6F16
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1

Registered Owner (Historical)

Name
BOUCHER PHILLIP L
Address
6323 MAYO DR
Status
Deregistered
City
SAN JOSE
State / Zip Code
CA 95123-5613
Country
United States

Analysis

The hot air balloon collided with power lines. The pilot stated while en route to his destination he was unable to arrest a descent, as the balloon's burner performance was less then he had expected. The wind blew the balloon into the power lines. The skirts and suspension cables were scorched as a result of the contact. The pilot applied sufficient heat in the balloon's envelope and the balloon ascended to about 300 feet above ground level (agl). Shortly thereafter, he performed a landing in an open filed without mishap. The pilot estimated the winds were between 5 and 6 knots.

The pilot reported that he had amassed a total of 983.3 hours in lighter than air aircraft, of which 28.5 hours were in the same make and model as the accident balloon. He reported that at the time of the accident the temperature was about 40 degrees Fahrenheit. He opined that the cold temperature resulted in a decrease in burner performance due to the fuel cooling and less pressure flowing through the burner unit. The tanks on the accident balloon were not equipped with heating elements, although they are on the type certificate. He thought the accident could have been prevented if he had tank heater to warm the burners, or had Supplemental Type Certificated upgraded burner system.

The pilot additionally reported no mechanical malfunctions or failures with the balloon prior to impact.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# LAX07CA094