MKC84LA276

NTSB accident investigation · Balloon Works Firefly 7 · Cedar Rapids, IA · September 11, 1984

Accident · No injuriesLimited investigationFinal report
Date
September 11, 1984, 18:15 local (23:15 UTC)
Place
Cedar Rapids, IA
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N4066TBalloon Works Firefly 7
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19840911048089A
Case key
33791

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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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 - in flightDescent - normal
In-flight planning/decision - improperPilot in commandCause
Fluid,fuel - undeterminedFactor
Fuel tank selector position - improper use ofPilot in commandFactor
Wind information - disregardedPilot in commandCause
In flight collision with objectDescent - uncontrolled
Object - wire,transmissionFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause

Analysis

The balloon landed in a field and as wind drifted it, the envelope draped over a pwr line. The plt said his burner malfunctioned and caused the inaccurate landing. Another account was told later in which the plt switched to an empty propane tank for landing. The burner was tested after the accident and functioned normally.

Aircraft

Registration
N4066T
Reported as
Balloon Works Firefly 7
Category
Balloon
Airframe hours
326
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Roger L. Bentley
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 7, 1984 · 57 hours before
Departed
Cedar Rapids, IA

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
Certificate
Commercial
Medical
Unknown, Unknown
Flight hours
175 total · 175 in this make and model · 151 as pilot in command · 49 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 10 knots
Visibility
15 statute miles
Lowest ceiling
None
Temperature
90 °F, dew point 66 °F
Altimeter
29.00 inHg
Observed at
CID

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.