Cameron A-400 near Yountville, CA — 2019-04-01

Probable cause

The pilot’s inability to maintain obstacle clearance after the balloon’s encounter with a downdraft, which resulted in a collision with power lines.

NTSB narrative

During cruise flight, the balloon encountered a sudden downdraft. The pilot arrested the descent to level flight, but not in time to prevent the bottom of the basket from contacting nearby power lines. The pilot subsequently landed the balloon without further incident. One passenger sustained serious injuries. The pilot reported that there were no preaccident mechanical failures or malfunctions with the balloon that would have precluded normal operation.

NTSB coding

• Miscellaneous/other · Enroute
• Attention / Monitoring

Evidence available

• Photos
• 2 docket documents

Docket documents2

• PILOT/OPERATOR AIRCRAFT ACCIDENT REPORT, NTSB FORM 6120.1form
• PHOTO (PROVIDED TO THE FAA BY THE OPERATOR)photos

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