CHI05CA133

NTSB accident investigation · Aerostar S-57A · Sparta, MO · May 28, 2005

Accident · Serious injuriesData collectionFinal report
Date
May 27, 2005, 19:40 local (May 28, 2005, 00:40 UTC)
Place
Sparta, MO
Injuries
1 serious, 2 uninjured
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N71072Aerostar S-57A
Weather
Visual (VMC) · Day
Status
Completed · report September 13, 2005
Report
Approved by Office Director
Parties
FAA-Kansas City FSDO
FAA report
20050527009669A
Case key
61735

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 inability to maintain a proper descent rate due to the wind gust resulting in a hard landing. Contributing factors were the wind gust and the tree struck during the landing.

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.

Hard landingDescent
Proper descent rate - not maintainedPilot in commandCause
Weather condition - high windFactor
Weather condition - gustsFactor
In flight collision with objectLanding
Object - tree(s)Factor

Analysis

The balloon sustained minor damage and the pilot sustained serious injuries when a wind gust was encountered while descending for landing following a tethered flight. The two passengers on-board were not injured. The pilot reported that he obtained a preflight weather briefing during which he was advised that forecast winds were to be 7 knots. He noted that he departed from his residence on a free balloon flight. After take off the flight proceeded in an easterly direction and landed about 30 minutes later. He stated that no unusual weather activity was observed during that flight and winds remained light. The pilot stated that after landing he elected to provide tethered balloon rides for residents in the area. He reported that while descending to land after the final ride, while about 30 feet above ground level, a "strong north wind suddenly hit the balloon." He estimated the wind gust was 25 miles per hour. He stated that he could not hold the balloon and it began to travel toward the south at a "rapid speed," which resulted in a hard landing in the next field. He reported that he pulled the vent line in an attempt to deflate the balloon envelope. The pilot stated that he was subsequently "bounced out" of the basket and was dragged through the field. The balloon "relaunched" itself in the high wind and flew into a tree. He was no longer able to hold onto the vent line and fell about 20 feet to the ground. The pilot suffered a fractured pelvis and compressed vertebrae.

Factual narrative

On May 27, 2005, at 1940 central daylight time, an Aerostar S-57A balloon, N71072, piloted by a private pilot, sustained minor damage when a wind gust was encountered while landing. The tethered balloon flight was being conducted under 14 CFR Part 91. Visual meteorological conditions prevailed. The pilot sustained serious injuries. The two passengers were not injured.

In his written statement, the pilot reported that he obtained a preflight weather briefing during which he was advised that forecast winds were to be from 220 - 250 degrees at 7 knots. He noted that he initially departed from his residence on a free balloon flight about 1840, which proceeded in an easterly direction. He reported that about 1920 he landed adjacent to Highway 125, about 4 miles south of Linden, Missouri. He stated that no unusual weather activity was observed during that flight and winds remained light.

The pilot stated that after landing he elected to provide tethered balloon rides for residents in the area. He reported that while descending to land after the final ride, while about 30 feet above ground level, a "strong north wind suddenly hit the balloon." He estimated the wind gust was 25 miles per hour. He stated that the balloon began to travel toward the south at a "rapid speed," which resulted in a hard landing in the next field. He reported that he pulled the vent line in an attempt to deflate the balloon envelope. The pilot stated that he was subsequently "bounced out" of the basket and was dragged through the field. The pilot reported that the balloon "relaunched" itself in the high wind and flew into a tree. He was no longer able to hold onto the vent line and fell about 20 feet to the ground. The pilot suffered a fractured pelvis and compressed vertebrae.

Aircraft

Registration
N71072
Reported as
Aerostar S-57A
Category
Balloon
Serial number
S57A-3180
Engine
Damage
Minor damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Normal
Departed
PVT · Sparta, MO
Airport
PVT

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
53
Injuries
Serious
Certificate
Private
Last flight review
July 1, 2003
Flight hours
132 total · 132 in this make and model · 3 in the last 90 days · 3 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 6 knots
Visibility
10 statute miles
Lowest ceiling
6,500 ft broken
Temperature
52 °F, dew point 34 °F
Altimeter
29.77 inHg
Observed at
SGF, 21 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.