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Accidents · NTSB MKC86FA117 · Preliminary: the investigation is not finished

Balloon Works FIREFLY 7-B accident near Lee'S Summit, Missouri, May 25, 1986

On May 25, 1986 at about 11:55 pm local time, a Balloon Works FIREFLY 7-B, registered N15369, was substantially damaged in an accident near Lee'S Summit, Missouri. It was an aerial observation flight under general aviation rules (Part 91). 3 people were seriously injured. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 25, 1986 · about 11:55 pm local time
Place
Lee'S Summit, Missouri · map
Type
Accident
Injuries
3 people were seriously injured.
Weather
visual conditions (good weather)
Aircraft
Balloon Works FIREFLY 7-B FIREFLY 7- · all FIREFLY 7-Bs on the register
Registration
N15369 · no longer on the register · serial 10238
Damage
Substantial damage
Flight
Aerial observation flight · general aviation rules (Part 91)

The NTSB's narrative final · quoted from the NTSB record

THE PIC STATED THAT PRIOR TO LIFTOFF, THE BALLOON WAS GYRATING AND INSTRUCTED THE GND CREW MEMBER TO STEADY THE BALLOON BY HOLDING THE ROPE. JUST AS THE BALLOON BECAME STEADY THE PIC INITIATED HIS TAKEOFF. THE PIC WAS AWARE OF TURBULENCE IN THE TAKEOFF SITE PRIOR TO LIFTOFF AND AGAIN DURING THE INITIAL LIFTOFF FM THE GROUND. THE BALLOON DRIFTED RAPIDLY EAST SOUTHEAST TOWARDS HIGH VOLTAGE POWERLINES. THE BALLOON ENCOUNTERED TURBULENCE IN THE FORM OF DOWNDRAFTS. THE PIC DID NOT ABORT THE TAKEOFF BUT CONTINUED FIRING THE BURNER TO TRY TO OUTCLIMB THE EFFECTS OF THE TURBULENCE. NO TEST BALLOON WAS RELEASED FM THE TAKEOFF SITE TO ASSESS WIND CONDITIONS PRIOR TO DEPARTURE.

The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.

The factual record from the NTSB's investigation tables, in plain English

Pilot

  • Certificate: commercial pilot
  • Ratings: rotorcraft: balloon
  • Flight time: 247 hours in all; 233 in this make and model; 4 in the last 90 days; 233 as pilot in command
  • Medical certificate: None
  • Seat: unk

The aircraft

  • Airframe total time: 240 hours
  • Last inspection: annual inspection, June 1, 1985; 37 hours since
  • Maximum gross weight: 1,050 lb
  • Landing gear: fixed
  • Engine: (type not recorded); 0 hours total

The flight

  • Departed from: Lee'S Summit MO at 11:50 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 290° at 8 knots
  • Visibility: 10 statute miles
  • Sky: scat at 5,000 ft
  • Temperature: 73°F (23°C), dew point 46°F (8°C)
  • Altimeter: 29.00 inHg
  • Observation at 11:45 pm from MKC, 15 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers2

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.