Balloon Works FIREFLY 7-15 accident near Waterloo, Iowa, May 30, 1998
On May 30, 1998 at about 11:55 am local time, a Balloon Works FIREFLY 7-15, registered N25491, was substantially damaged in an accident near Waterloo, Iowa. It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot's failure to maintain clearance with the power lines during climb. A factor was the power lines.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- May 30, 1998 · about 11:55 am local time
- Place
- Waterloo, Iowa · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Balloon Works FIREFLY 7-15 FIREFLY 7- · all FIREFLY 7-15s on the register
- Registration
- N25491 · no longer on the register · serial F7-775
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
The accident balloon was part of a balloon rally. The pilot reported that he arrived at the target drop area near the Waterloo Municipal Airport. He further reported that 'After throwing my baggie I started to burn to get enough lift to clear powerlines. It seems to me we were going parallel with the powerlines along Jordan Street and would have cleared the powerlines on West Airline Highway when a gust of wind took us into the powerlines on Jordan Street.' After contacting the wires the balloon slid horizontally down the wires until the basket came to rest alongside a power pole. The pilot secured the basket to the pole using a rope and waited for approximately 2 hours until he and the passenger were lowered out of the basket by the fire department. Calm winds were reported in the area at the time of the accident.
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: 582 hours in all; 582 in this make and model; 1 in the last 90 days; 1 in the last 30 days; 582 as pilot in command
- Medical certificate: Unknown
- Seat: unk
The aircraft
- Last inspection: annual inspection, May 14, 1998; 132 hours since
- Maximum gross weight: 1,750 lb
- Seats: 0
- Landing gear: fixed
- Engine: (type not recorded); 0 hours total
The flight
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 63°F (17°C), dew point 63°F (17°C)
- Altimeter: 29.00 inHg
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 | |||
| Passengers | 1 |
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.