WPR12CA163

NTSB accident investigation · Avian Balloon Magnum IX · Sedona, AZ · April 10, 2012

Accident · No injuriesData collectionFinal report
Date
April 10, 2012, 07:30 local (14:30 UTC)
Place
Sedona, AZ
Injuries
14 uninjured
Phase of flight
Approach
Aircraft
N2037UAvian Balloon Magnum IXN20513Avian Balloon Magnum IX
Defining events
Approach: Midair collisionApproach: Midair collision
Weather
Visual (VMC) · Day
Status
Completed · report June 28, 2012
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
Case key
83375

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot did not maintain adequate clearance during approach for landing between his basket and the envelope of another balloon that was also on approach, which resulted in a midair collision.

The pilot of another balloon did not maintain adequate clearance during approach for landing between his basket and the envelope of this balloon that was also on approach, which resulted in a midair collision.

Findings · 6

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

N2037U · Avian Balloon Magnum IX

Use of equip/info: aircraft controlPersonnel issues › Task performance · Pilot of other aircraftAvian Balloon MAGNUM IX: 1 caseAll aircraft: 9,295 casesProbable cause
Attention/monitoring: monitoring other aircraftPersonnel issues › Psychological · Pilot of other aircraftAvian Balloon MAGNUM IX: 1 caseAll aircraft: 231 casesProbable cause
Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedAvian Balloon MAGNUM IX: 1 caseAll aircraft: 809 casesProbable cause

N20513 · Avian Balloon Magnum IX

Performance/control parameters: descent/approach/glide pathAircraft › Aircraft oper/perf/capability · Not attained/maintainedAvian Balloon MAGNUM IX: 1 caseAll aircraft: 809 casesProbable cause

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

N2037U · Avian Balloon Magnum IX

N20513 · Avian Balloon Magnum IX

Analysis

Two balloons were on approach to land and collided into each other. Balloon A, N2037U, was at a lower altitude and in front of balloon B, N20513. As the pilots were descending to land, balloon A began to slow about 10 feet above ground level and the pilot of balloon B realized that the balloons' envelopes might touch, which he noted was not uncommon during takeoffs and landings. As balloon A came closer into his view, he thought the contact may push it into the ground, so he decided to ascend. During the climb, the basket of balloon B collided with the envelope of balloon A, tearing two of its panels just above the equator, resulting in substantial damage. The pilot of balloon B landed his balloon without further incident. The pilot of balloon A observed the envelope tearing and opened both burners. His balloon contacted the ground and bounced, momentarily becoming airborne again before touching down. Both pilots stated that there were no preimpact mechanical malfunctions or failures with the balloons that would have precluded normal operation.

Two balloons were on approach to land and collided into each other. Balloon A, N2037U, was at a lower altitude and in front of balloon B, N20513. As the pilots were descending to land, balloon A began to slow about 10 feet above ground level and the pilot of balloon B realized that the balloons' envelopes might touch, which he noted was not uncommon during takeoffs and landings. As balloon A came closer into his view, he thought the contact may push it into the ground, so he decided to ascend. During the climb, the basket of balloon B collided with the envelope of balloon A, tearing two of its panels just above the equator, resulting in substantial damage. The pilot of balloon B landed his balloon without further incident. The pilot of balloon A observed the envelope tearing and opened both burners. His balloon contacted the ground and bounced, momentarily becoming airborne again before touching down. Both pilots stated that there were no preimpact mechanical malfunctions or failures with the balloons that would have precluded normal operation.

Factual narrative

The pilot flying balloon N2037U stated that he was making an approach to land when he noticed balloon N20513 behind him making an approach as well. He heard the envelope of his balloon tearing and observed the basket of N20513 ripping the material. The pilot opened both burners and instructed the passengers to brace themselves during touchdown. N2037U contacted the ground and bounced, momentarily becoming airborne again before touching down. The pilot flying balloon N20513 stated that he was making an approach to land and observed balloon N2037U landing ahead of his position. He noticed N2037U began to slow as it was descending through about 10 feet above ground level. He realized that the balloons' envelopes may touch, which he noted was not uncommon during takeoffs and landings. As N2037U came closer into his view, he thought the contact may push it into the ground and decided to ascend. During the climb, the basket of his balloon collided with the envelope of N2037U, tearing two of its panels. He landed his balloon without further incident. The pilot of N20513 stated that the accident may have been prevented if he had maintained the same altitude as N2037U. Both pilots stated that there were no preimpact mechanical malfunctions or failures with the balloons that would have precluded normal operation.

The pilot flying balloon N2037U stated that he was making an approach to land when he noticed balloon N20513 behind him making an approach as well. He heard the envelope of his balloon tearing and observed the basket of N20513 ripping the material. The pilot opened both burners and instructed the passengers to brace themselves during touchdown. N2037U contacted the ground and bounced, momentarily becoming airborne again before touching down. The pilot flying balloon N20513 stated that he was making an approach to land and observed balloon N2037U landing ahead of his position. He noticed N2037U began to slow as it was descending through about 10 feet above ground level. He realized that the balloons' envelopes may touch, which he noted was not uncommon during takeoffs and landings. As N2037U came closer into his view, he thought the contact may push it into the ground and decided to ascend. During the climb, the basket of his balloon collided with the envelope of N2037U, tearing two of its panels. He landed his balloon without further incident. The pilot of N20513 stated that the accident may have been prevented if he had maintained the same altitude as N2037U. Both pilots stated that there were no preimpact mechanical malfunctions or failures with the balloons that would have precluded normal operation.

Aircraft · 2

Registration
N2037U
Reported as
Avian Balloon Magnum IX
Category
Balloon
Serial number
202
Airframe hours
232
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Northern Light Balloon Expeditions
Registered owner
Northern Light Balloon Expeditions
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · February 28, 2012
Departed
SEZ · Sedona, AZ
Destination
Sedona, AZ
Airport
SEZ · Sedona Airport

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Registration
N20513
Reported as
Avian Balloon Magnum IX
Category
Balloon
Serial number
204
Airframe hours
542
Damage
No damage
Flight
Other work use · Part 91
Operator
Northern Light Balloon Expeditions
Registered owner
Northern Light Balloon Expeditions
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 6, 2012
Departed
SEZ · Sedona, AZ
Destination
Sedona, AZ
Airport
SEZ · Sedona Airport

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Pilot, aircraft N2037U
Age
58
Injuries
None
Certificate
Commercial
Last flight review
October 5, 2010
Flight hours
6,882 total · 5,000 in this make and model
Role
Pilot, aircraft N20513
Age
59
Injuries
None
Certificate
Commercial
Last flight review
October 28, 2010
Flight hours
7,913 total · 7,703 in this make and model

Weather

Conditions
Visual (VMC) · Day
Temperature
50 °F

Docket · 2

The files NTSB released with the investigation on May 15, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.9 MB in all.

FAA reports on this event · 2

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N2037U · 1

Matched to the same aircraft by N-number and date.