LAX05LA143

NTSB accident investigation · Firefly Balloon Firefly 11 · Saint Helena, CA · April 13, 2005

Accident · Serious injuriesLimited investigationFinal report
Date
April 13, 2005, 08:00 local (15:00 UTC)
Place
Saint Helena, CA
Injuries
1 serious, 8 uninjured
Damage
No damage
Phase of flight
Approach
Aircraft
N15001Firefly Balloon Firefly 11
Weather
Visual (VMC) · Day
Status
Completed · report March 28, 2006
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20050413025959A
Case key
61400

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's encounter with wind shear during landing, which resulted in a hard touchdown.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight encounter with weatherApproach - vfr pattern - final approach
Weather condition - high windCause
Weather condition - windshearCause
Object - tree(s)
Hard landingLanding - flare/touchdown
Terrain condition - none suitable
Proper descent rate - not obtained/maintainedPilot in command

Analysis

The balloon touched down hard at the conclusion of a sightseeing flight seriously injuring one of the eight fare-paying passengers. The pilot indicated that upon entering a wider area of the Napa Valley the winds aloft should have slowed, but they did not. Therefore, he decided to land as soon as possible, having the belief that the wind speed might increase if he continued the flight. During the descent to an open field, the balloon drifted over a row of estimated 30- to 40-foot-tall trees, and the wind speed suddenly increased to between 10 and 12 miles per hour. The pilot advised the passengers to prepare for a possible hard touchdown, and during the final seconds of the flight, he used both burners at maximum power to slow the descent rate. However, a windshear was encountered, and the balloon abruptly descended.

Factual narrative

On April 13, 2005, about 0800 Pacific daylight time, a Firefly Balloons, Inc., Firefly 11, N15001, made a hard landing in an open field near Saint Helena, California. The balloon was not damaged. Neither the commercial certificated pilot nor seven of the eight fare-paying passengers were injured. The eighth passenger was seriously injured during the touchdown sequence of the hard landing. The balloon was owned and operated by Calistoga Balloons, LLC., Calistoga, California. Visual meteorological conditions prevailed during the sightseeing flight, and no flight plan had been filed. The flight was performed under the provisions of 14 CFR Part 91, and it originated from Calistoga about 0700.

The pilot reported to the National Transportation Safety Board investigator that during the flight he had varied the balloon's altitude from 500 to 3,000 feet above ground level, and the cruise portion of the flight had been uneventful. The pilot indicated that upon entering a wider area of the Napa Valley the winds aloft should have slowed, but they did not. Therefore, he decided to land as soon as possible, having the belief that the wind speed might increase if he continued the flight.

During the descent to an open field, the balloon drifted over a row of estimated 30- to 40-foot-tall trees. The wind speed suddenly increased to between 10 and 12 miles per hour. The pilot reported that he advised the passengers to prepare for a possible hard touchdown, and during the final seconds of flight he used both burners at maximum power to slow the descent rate. However, a wind shear was encountered upon drifting downwind over the trees. The balloon abruptly descended, and the touchdown was "firm." The basket remained upright, and it stopped dragging on the ground in about 30 feet.

Aircraft

Registration
N15001
Reported as
Firefly Balloon Firefly 11
Category
Balloon
Serial number
F11-2001
Airframe hours
169
Engine
Damage
No damage
Flight
Other work use · Part 91
Registered owner
Calistoga Balloons, LLC.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 1, 2004 · 34 hours before
Departed
Calistoga, CA
Destination
Saint Helena, CA

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
55
Injuries
None
Certificates
Flight instructor, Commercial
Airplane ratings
Single-engine land
Medical
Class 3, Expired
Last flight review
February 1, 2005
Flight hours
7,000 total · 340 in this make and model · 7,000 as pilot in command · 20 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
37 °F, dew point 37 °F
Altimeter
30.17 inHg
Observed at
STS, 15 nm away

FAA reports on this event · 1

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