LAX03LA099

NTSB accident investigation · Aerostar International S-71A · Scottsdale, AZ · February 15, 2003

Accident · No injuriesLimited investigationFinal report
Date
February 15, 2003, 10:15 local (17:15 UTC)
Place
Scottsdale, AZ
Injuries
6 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N5285MAerostar International S-71A
Weather
Visual (VMC) · Day
Status
Completed · report December 28, 2004
Report
Approved by Office Director
Parties
Federal Aviation Administration
FAA report
20030215002979A
Case key
56552

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

On this page

Probable cause

the pilot's inadequate in-flight decision to cross over four sets of power lines with the existence of a known low fuel state and lack of wind, and failure to maintain altitude/clearance from the power lines during the landing, which resulted in the envelope contacting high voltage power lines.

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.

On ground/water collision with objectLanding - flare/touchdown
Object - wire,transmission
Weather condition - unfavorable wind
Fuel supply - lowCause
In-flight planning/decision - inadequatePilot in commandCause
Altitude/clearance - not maintainedPilot in commandCause

Analysis

The pilot made an emergency landing between power lines. Once the basket touched down, the envelope contacted high voltage lines and the voltage/spark arced to the ground. The envelope and basket sustained substantial damage. The pilot obtained local area weather briefings. He indicated that at the time of the accident there were no winds, and he was using more fuel than normal due to the lack of winds. The pilot noted a low fuel state and was crossing over power lines to get to an open space for landing. The balloon had crossed over three sets of power lines, when the pilot noted that he wasn't going to cross safely over the last set. He saw an open space between the third and fourth set of power lines and made an emergency landing. The pilot stated that he and the passengers did not feel voltage/spark in the basket.

Factual narrative

On February 15, 2003, at 1015 mountain standard time, an Aerostar S-71A balloon, N5285M, made a precautionary landing between power lines near the intersection of Jomax Street and Scottsdale Road, Scottsdale, Arizona. After landing, while the pilot and passengers were still inside the basket, the envelope struck a power line. A volt of electricity struck the wire pyrometer and sent electricity through the envelope and basket. The basket and envelope were substantially damaged. The certificated airline transport pilot and five passengers were not injured. Visual meteorological conditions prevailed for the local area sightseeing flight, and no flight plan had been filed. The flight departed from the corner of Scottsdale Road and Mayo Boulevard in Scottsdale, about 0830 the morning of the accident. The flight was scheduled to terminate in the same general location.

According to the pilot, he had received weather briefings from the Prescott Flight Service Station (FSS), Deer Valley Airport, and Scottsdale Airport (SDL). At the time of the accident, the pilot indicated that there were no winds, and he was using more fuel than normal due to the lack of winds.

In the pilot's written statement he stated that initially the flight was gong to depart from the Marriott Desert Ridge hotel. However, due to weather they moved the equipment closer to SDL for greater visibilities. There was a group of six balloons.

Once repositioned at the new takeoff site, the balloon pilots contacted SDL tower with their intended route of flight. The flight departed to the northwest. The pilot stated that some balloons went to the west. He stayed at a lower altitude, about 800 feet, and flew towards the north.

The pilot stated that his intention, because it was open desert, was to stay low and land to the northwest. As the flight proceeded to the north he crossed over a large power station, and then descended to land. Due to horses and riders, he continued the flight in an easterly direction. The balloon crossed over Scottsdale Road and approached high voltage lines. The pilot stated that the power lines ran along a northeast/southwest direction and there were four sets. When the balloon climbed, the pilot changed the direction of travel to the northeast.

The pilot stated that he was concerned about fuel. The balloon had burned 1.5 hours of fuel. He continued to cross the power lines at a 5-to 10-degree angle. He stated that he was not "making good progress crossing the lines." The balloon had crossed over three sets of power lines. Between the third and fourth set of power lines there was a large open space. He decided to make an "emergency landing between the lines." When the balloon came to a stop, the envelope touched the high voltage lines and arced to the ground. The pilot stated that he and the passengers did not feel voltage or sparks inside the basket.

Aircraft

Registration
N5285M
Reported as
Aerostar International S-71A
Category
Balloon
Serial number
S71-3023
Airframe hours
178.6
Engine
Damage
Substantial damage
Flight
Other work use · Part 91
Operator
Adventures Out West
Registered owner
Pl Leasing, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · February 15, 2002 · 93.9 hours before
Departed
Scottsdale, AZ

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
61
Injuries
None
Certificate
Airline transport
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Last flight review
October 10, 2002
Flight hours
10,850 total · 100 in this make and model · 10,700 as pilot in command · 50 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
1,500 ft overcast
Temperature
57 °F, dew point 54 °F
Altimeter
30.09 inHg
Observed at
SDL, 8 nm away

Docket · 1

The files NTSB released with the investigation on November 5, 2004, on NTSB’s docket system: statements, records, photos and specialists’ reports. 367 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.