CHI03LA224

NTSB accident investigation · Aerostar S81A · Highland, MI · July 23, 2003

Accident · Serious injuriesLimited investigationFinal report
Date
July 23, 2003, 07:32 local (11:32 UTC)
Place
Highland, MI
Injuries
2 serious, 8 minor, 2 uninjured
Damage
No damage
Phase of flight
Approach
Aircraft
N11BQAerostar S81A
Weather
Visual (VMC) · Day
Status
Completed · report December 30, 2003
Report
Approved by Office Director
Parties
FAA -- Detroit FSDO
FAA report
20030723016519A
Case key
57565

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

Failure of the pilot to maintain a proper descent rate. Contributing factors were the pilot's failure to maintain clearance from the trees, the reported high winds and gusts, the trees, the power lines and the house.

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 collision with objectApproach
Altitude/clearance - not maintainedPilot in commandFactor
Object - tree(s)Factor
Hard landingLanding
Proper descent rate - not maintainedPilot in commandCause
Weather condition - gustsFactor
Weather condition - high windFactor
Object - wire,staticFactor
Object - residenceFactor

Analysis

Two passengers of the sightseeing balloon flight sustained serious injuries during a hard landing. A total of eleven passengers were on-board. Seven of the passengers, as well as the pilot, reported minor injuries. The remaining two passengers reported no injuries. The balloon was undamaged. The pilot reported surface winds at departure were light. However, during flight at 2,500 feet mean sea level, the winds were in excess of 30 knots, according to the pilot. He reported descending to where more moderate winds were encountered. The pilot stated that about 30 minutes into the flight, however, lower level winds started to increase. He stated he had selected a field and was approaching to land when the winds "increased rapidly" and the trees "began to move violently." Power lines and a house were reportedly located at the opposite end of the landing field. For this reason, the pilot reported that he felt he needed to land immediately considering the reported high winds and gusts and the presence of the power lines and house. Passengers stated the balloon basket clipped a tree on approach. The balloon impacted the ground and was dragged about 170 feet, ejecting one passenger in the process. The balloon was undamaged. The pilot reported no malfunctions with the balloon prior to the accident.

Factual narrative

On July 23, 2003, at 0732 eastern daylight time, an Aerostar S81A balloon, N11BQ, operated by Balloon Quest Inc. and piloted by a commercial pilot, experienced a hard landing at the intersection of Saddle Ridge and Middle Roads in Highland, Michigan. Of the 11 passengers on-board, 2 sustained serious injuries, 7 sustained minor injuries and 2 reported no injuries. The pilot reported minor injuries. The balloon was undamaged. The sightseeing flight was conducted under the provisions of 14 CFR Part 91 and was not on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The flight departed the operator's facility located in Fenton, Michigan, at 0630.

The pilot reported in his written statement, on departure the surface winds were light. At an altitude of 2,500 feet mean sea level, the pilot estimated the winds from 040 degrees at 30+ knots. He reported descending to a lower altitude where winds were approximately 12 knots. However, about 30 minutes into the flight, lower level winds started to increase and he began looking for "larger potential landing spots." The pilot stated: "Winds on approach to a large open field increased very rapidly. The trees just prior to my landing field began to move violently as I crossed just over them and into the field." Upon impact, the basket reportedly was dragged approximately 170 feet and one passenger fell out of the basket. At this point, the pilot reported he secured the balloon and attended to the injured passengers.

In addition to the trees across the approach path to the landing field, the Federal Aviation Administration inspector on-scene reported power lines and a house were located at the opposite end of the field. The pilot reported that he felt he needed to land immediately with the wind gust and the presence of the power lines and house, according to the inspector.

One of the passengers stated that the flight itself was "good". She reported that during the flight the pilot estimated their groundspeed as 30 - 35 knots, and he remarked that this was fast for a balloon flight. The passenger noted the last 15 minutes of the flight was "just above the trees." She stated that it was windy on descent. She reported that about one minute before landing, the balloon basket passed through some trees. She described this as "minor contact," in which some branches hit her in the face. During the landing, the basket hit hard and was dragged through the field before it stopped, according to the passenger.

A second passenger recalled it as a "beautiful flight" until the landing. She reported that during the flight the pilot mentioned they were "moving at a pretty good clip," about 30 - 35 miles per hour. She stated that toward the end of the flight the balloon basket clipped a large tree and the branches hit the passengers in the face. She recalled that shortly before landing the pilot told the passengers that it was going to be a rough landing. She recalled thinking the descent rate was fast. She reported that when the basket hit the ground it rebounded back up momentarily. She noted that, at the time, she thought the pilot was "going back up." She did not recall any wind gusts during the descent and landing.

Surface winds recorded at the Oakland County Airport (PTK), located 10 miles east of the accident site, at 0653 were from 350 degrees at 7 knots. At 0753, the PTK winds were unchanged at 350 degrees at 7 knots. Winds aloft recorded at 0800 in the vicinity of Pontiac, Michigan, were from 015 degrees at 15 knots at 1,998 feet. At 2,999 feet the recorded winds were from 020 degrees at 16 knots.

The pilot reported no malfunctions or failures with the balloon during the flight.

Aircraft

Registration
N11BQ
Reported as
Aerostar S81A
Category
Balloon
Serial number
S81A-3010
Airframe hours
196
Engine
Damage
No damage
Flight
Part 91
Registered owner
Balloon Quest Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 9, 2003 · 23 hours before
Departed
PVT · Fenton, MI
Destination
N/A · Highland, MI

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
44
Injuries
Minor
Certificate
Commercial
Airplane ratings
Single-engine land
Last flight review
September 30, 2001
Flight hours
1,526 total · 196 in this make and model · 1,463 as pilot in command · 41 in the last 90 days · 15 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
350° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 57 °F
Altimeter
29.95 inHg
Observed at
PTK, 9 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.