NYC04LA078

NTSB accident investigation · Raven Industries Rally RX7 · Nicholasville, KY · February 28, 2004

Accident · FatalLimited investigationFinal report
Date
February 28, 2004, 16:30 local (21:30 UTC)
Place
Nicholasville, KY
Injuries
1 fatal
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N4110MRaven Industries Rally RX7
Weather
Visual (VMC) · Dusk
Status
Completed · report April 28, 2005
Report
Approved by Office Director
Parties
FAA/FSDO SO-01
FAA report
20040228002859A
Case key
58841

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 improper decision to continue the inadvertent flight in variable wind conditions, which resulted in an impact with power lines. Factors were the variable wind conditions and the unsuitable takeoff area.

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 objectTakeoff
Object - wire,transmission
Planning/decision - improperPilot in commandCause
Weather condition - variable windFactor
Unsuitable terrain or takeoff/landing/taxi areaPilot in commandFactor

Analysis

The hot-air balloon was inflated "normally," and the pilot planned to launch from a field about 300 feet long and 100 feet wide, with 35-foot tall power lines lining the north edge of the field. As the balloon began to stand up about 200 feet south of the power lines, the wind increased in velocity and became gusty. The wind then pushed the balloon forward, and the basket tipped slightly. The balloon began to "scoot" along the ground, the pilot released the tie-down line, activated the burner, and instructed the crew to "weight off." The balloon ascended to an altitude of about 5 to 10 feet, and the pilot was observed activating the burner several times; however, the balloon did not rise as expected. As the balloon approached the power lines, the pilot closed the fuel tank valves, pulled the redline to open the vent, and ducked inside the basket. The balloon suspension cables contacted the power lines, the cables severed, and the basket fell about 35 feet to the ground in a horizontal attitude.

Factual narrative

On February 28, 2004, at 1630 eastern standard time, a Raven Industries Rally RX7 balloon, N4110M, was substantially damaged during takeoff from a field in Nicholasville, Kentucky. The certificated private pilot was not injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight conducted under 14 CFR Part 91.

Federal Aviation Administration (FAA) inspectors interviewed several witnesses after the accident. According to the witnesses, the balloon was to be launched from a field about 300 feet long and 100 feet wide, with 35-foot tall power lines lining the north edge of the field.

The balloon was laid out on the ground about 200 feet south of the power lines, and inflation was "normal." As the balloon began to stand up, the wind increased in velocity and became gusty. At the pilot's request, the ground crew members placed weight in the basket. The wind then pushed the balloon forward, and the basket tipped slightly. The balloon began to "scoot" along the ground, and the pilot released the tie-down line, which was secured to the vehicle trailer. The pilot then activated the burner and instructed the crew to "weight off." The balloon ascended to an altitude of about 5 to 10 feet, as it traveled north. It skimmed the ground for about 30 feet, and then settled back to the surface. The pilot was observed activating the burner several times; however, the balloon did not rise as expected. As the balloon approached the power lines, the pilot turned off the burner and closed the fuel tank valves. He pulled the redline to open the vent, and just prior to impacting the power lines, he ducked inside the basket.

The balloon suspension cables at two corners of the basket contacted the power lines, which severed the cables and the basket to tip 90 degrees to a horizontal attitude. The balloon continued to move toward the north, and a third suspension cable came in contact with the power lines and was severed. The fourth suspension cable then separated from the balloon envelope and the basket fell about 35 feet to the ground in a horizontal attitude. The balloon envelope, free of the basket, continued about 1,500 feet to the north, and came to rest in a residential area.

The winds reported at an airport about 9 miles to the north, at 1554, were variable at 4 knots. At 1654 the winds were from 150 degrees at 4 knots.

An autopsy and toxicological testing was conducted on the pilot by the Office of the Coroner, Lexington, Kentucky.

Aircraft

Registration
N4110M
Reported as
Raven Industries Rally RX7
Category
Balloon
Serial number
RX7-337
Engine
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Gordon Wirt
Airworthiness certificate
Standard, Normal
Departed
NONE · Nicholasville, KY
Airport
None

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
Fatal
Certificate
Private
Last flight review
August 17, 2003

Weather

Conditions
Visual (VMC) · Dusk
Wind
150° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 14 °F
Altimeter
30.34 inHg
Observed at
LEX, 10 nm away

Docket · 2

The files NTSB released with the investigation on February 17, 2005, on NTSB’s docket system: statements, records, photos and specialists’ reports. 103 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.