Boeing B75N1 accident near Wonder Lake, Illinois, July 31, 1988
On July 31, 1988 at about 8:30 pm local time, a Boeing B75N1, registered N4408N, was substantially damaged in an accident near Wonder Lake, Illinois (Galt airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 1 person was on board or involved. 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
- July 31, 1988 · about 8:30 pm local time
- Place
- Wonder Lake, Illinois · Galt
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Boeing B75N1 · all B75N1s on the register
- Registration
- N4408N · registry record · serial 75-7689
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: private
- Ratings: single-engine land; instrument: airplane
- Flight time: 1,200 hours in all; 150 in this make and model; 80 in the last 90 days; 30 in the last 30 days; 1,100 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: rear
The aircraft
- Airframe total time: 3,143 hours
- Last inspection: annual inspection, November 19, 1987; 57 hours since
- Maximum gross weight: 3,000 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming R-680-13 (piston); 0 hours total
The flight
- Departed from: 10C at 8:30 pm
- Destination: 10C
- Flight plan: none
- Runway 9, 3,100 ft by 36 ft
Weather at the time
- Light: daylight
- Wind: from 200° at 7 knots
- Visibility: 10 statute miles
- Temperature: 90°F (32°C), dew point 63°F (17°C)
- Altimeter: 30.00 inHg
- Observation at 8:45 pm from DPA, 30 miles away
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 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.
Other NTSB records under N4408N the same tail number, which may have belonged to a different aircraft at the time
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.