Pilot Debrief

LINDSTRAND BALLOONS 180A near Lewiston, ME — 2011-08-20

Final reportERA11LA469
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Date
2011-08-20
Location
Lewiston, ME, USA
Aircraft
LINDSTRAND BALLOONS 180A
Registration
N75213
Category
Balloon
Highest injury
Serious
Fatalities
0
Phase of flight
Preflight

Probable cause

The separation of the inflation tank gas line due to an improperly positioned valve o-ring. Contributing to the accident was the use of an unapproved inflation tank.

NTSB narrative

A witness, who boarded the balloon for a sightseeing flight, reported that the pilot bent over and contacted a gas line with his arm. The line connection separated at the inflation tank, and gas sprayed upward and ignited. The pilot received second-degree burns on his hands and arms. Three passengers and one ground crewmember received minor injuries. A postaccident examination revealed that a rubber o-ring on the inflation tank valve was partially exposed and out of its normal position. The examination revealed that there was no approval documentation for the installation of the inflation tank.

Analysis

Primary failure mode
Mechanical failure
First missed decision gate
Failure to ensure proper installation and approval of the inflation tank before flight.

NTSB coding

Evidence available

  • Photos
  • 7 docket documents
View NTSB final reportView NTSB docket

Docket documents7

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