CHI85FEE02

NTSB accident investigation · Balloon Works Firefly AX-7 · Somonauk, IL · June 18, 1985

Accident · Serious injuriesFinal report
Date
June 17, 1985, 20:15 local (Jun 18, 1985, 01:15 UTC)
Place
Somonauk, IL
Injuries
1 serious, 3 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N40532Balloon Works Firefly AX-7
Weather
Visual (VMC) · Dusk
Status
Completed
Report
Approved by Office Director
FAA report
19850617026239A
Case key
12876

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

On this page

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.

Loss of control - on ground/waterTakeoff
Weather evaluation - misjudgedPilot in commandCause
Wind information - disregardedPilot in commandCause
Compensation for wind conditions - inadequatePilot in commandCause
In flight collision with objectTakeoff - initial climb
Proper climb rate - not attainedPilot in commandCause
Clearance - inadequatePilot in commandCause

Analysis

The balloon collided with powerlines during takeoff. The wind was reported as 10-15 mph with gusts. The operation was canceled due to the wind after 6 successful launches. The last plt was reportedly pressured to go by his pass'g and a gust of wind blew them into the wires. One person was thrown from the basket during the collision and suffered broken bones in his arms and ribs. The other 3 had jumped as instructed by the plt and escaped injury.

Aircraft

Registration
N40532
Reported as
Balloon Works Firefly AX-7 (FIREFLY AX)
Category
Balloon
Serial number
10090
Airframe hours
2,466
Engine
None NONE, unknown
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Ronald W. Pierce
Airworthiness certificate
Standard, Normal
Last inspection
Annual · May 25, 1985 · 10 hours before
Departed
Somonauk, IL
Destination
C48 · Sandwich, IL
Flight plan
VFR

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
46
Certificate
Commercial
Flight hours
215 total · 215 in this make and model · 199 as pilot in command · 31 in the last 90 days · 10 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Dusk
Wind
260° at 11 knots, gusting 15
Visibility
4 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 46 °F
Altimeter
29.00 inHg
Observed at
ARR, 130 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.