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Aviation safety reports, made easier to study

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NTSB Report

July 31, 2008 · Head Balloons AX9-118 · N3106K

Cook, MN

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
July 31, 2008
Injury Outcomes
No injuries (3 uninjured)
Location
Cook, MN
Aircraft
Head Balloons AX9-118
Tail Number
N3106K
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
CHI08CA227

After a 15-20 minute balloon flight, the pilot began to look for a suitable landing area. The selected landing area was a road within a heavily wooded area. The pilot said that he did not see the power transmission lines that were hidden in the tree line alongside the road. During the landing, the surface winds blew the balloon envelope "in close proximity to the wires." According to the pilot, about five minutes after landing the balloon envelope lost enough hot air that it deflated on lines and caught on fire. An eyewitness reported seeing the balloon flying low over the forested area and then very thick black smoke. The pilot told local law enforcement that the balloon envelope contacted the power transmission lines before the basket touched-down. The law enforcement accident report stated that there was a "small showering of sparks and a very small flame" when the balloon envelope came in contact with the power lines. The balloon envelope was destroyed by the ensuing fire.

NTSB Probable Cause

The pilot's decision to land in a confined area. Contributing to the accident were the hidden power transmission lines and the confined landing site.

Full Narrative

After a 15-20 minute balloon flight, the pilot began to look for a suitable landing area. The selected landing area was a road within a heavily wooded area. The pilot said that he did not see the power transmission lines that were hidden in the tree line alongside the road. During the landing, the surface winds blew the balloon envelope "in close proximity to the wires." According to the pilot, about five minutes after landing the balloon envelope lost enough hot air that it deflated on lines and caught on fire. An eyewitness reported seeing the balloon flying low over the forested area and then very thick black smoke. The pilot told local law enforcement that the balloon envelope contacted the power transmission lines before the basket touched-down. The law enforcement accident report stated that there was a "small showering of sparks and a very small flame" when the balloon envelope came in contact with the power lines. The balloon envelope was destroyed by the ensuing fire.

Flight

Event TypeAccident
Event Time08:30 CDT
Nearest Airport0nm
Flight Plan FiledNone
Aircraft FireBoth
Aircraft ExplosionNo

Aircraft

AircraftHead Balloons AX9-118
Tail NumberN3106K
Aircraft CategoryBall
DamageDestroyed
Operating RulePart 91
Engines0

People & Injuries

Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 52 · First Class · None

Conditions

ConditionsVMC
LightDaylight
Wind150° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 63 F
Altimeter29.78 inHg
Observation Time13:35
Weather SourceWFAC

Appendix: Source Data