WPR10CA058

NTSB accident investigation · Cameron Balloons US A-250 · Napa, CA · November 11, 2009

Accident · Serious injuriesData collectionFinal report
Date
November 11, 2009, 09:45 local (17:45 UTC)
Place
Napa, CA
Injuries
1 serious, 12 uninjured
Damage
No damage
Phase of flight
Landing
Aircraft
N4062MCameron Balloons US A-250
Defining event
Landing: Hard landing
Weather
Visual (VMC) · Day
Status
Completed · report March 3, 2010
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
FAA FSDO
FAA report
20091111023139A
Case key
75076

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 variable winds which resulted in a hard landing and passenger injury.

Findings · 1

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.

Wind: variable windEnvironmental issues › Conditions/weather/phenomena · Effect on operationCameron Balloons US A-250: 1 caseAll aircraft: 113 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.

Analysis

The pilot of the balloon reported that after three unsuccessful landing attempts during the sightseeing flight, he located a grassy 2-3 acre field and positioned the balloon for landing. He stated that the approach was from the northwest at 500-feet and the balloon was traveling about 6 knots. The pilot anticipated winds near the surface to be from the east; however, after descending to 250-feet the balloon continued in a southerly direction, near trees. The pilot executed a controlled descent over a tree and landed firmly. The basket bounced once and came to rest upright with the balloon's envelope against a tree. After the landing, one of the passengers complained of ankle pain and was transported to a hospital. A medical evaluation revealed that the passenger's ankle was fractured. The pilot reported that a passenger landing briefing was completed prior to landing.

Factual narrative

The pilot of the balloon reported that after three unsuccessful landing attempts during the sightseeing flight, he located a grassy 2-3 acre field and positioned the balloon for landing. He stated that the approach was from the northwest at 500-feet and the balloon was traveling about 6 knots. The pilot anticipated winds near the surface to be from the east, however, after descending to 250-feet the balloon continued in a southerly direction, near trees. The pilot executed a controlled descent over a tree and landed firmly. The basket bounced once and came to rest upright with the balloon's envelope against a tree. After the landing, one of the passengers complained of ankle pain and was transported to a hospital. A medical evaluation revealed that the passenger's ankle was fractured. The pilot reported that a passenger landing briefing was completed prior to landing.

Aircraft

Registration
N4062M
Reported as
Cameron Balloons US A-250
Category
Balloon
Serial number
6508
Airframe hours
350
Damage
No damage
Flight
Other work use · Part 91
Operator
Napa Valley Balloons Inc
Registered owner
Napa Valley Balloons Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · July 31, 2009
Departed
Yountville, CA
Destination
Napa, 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
60
Injuries
None
Certificate
Commercial
Medical
Class 3, Unknown
Flight hours
5,465 total · 360 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
145° at 8 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 46 °F
Altimeter
30.03 inHg

Docket · 1

The files NTSB released with the investigation on November 27, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 718 KB in all.

FAA reports on this event · 1

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