Cessna 172F accident near Delaware, Ohio, August 9, 1984
On August 9, 1984 at about 4:15 pm local time, a Cessna 172F, registered N8333U, was substantially damaged in an accident near Delaware, Ohio (Delaware State Park airport). It was an aerial observation flight under general aviation rules (Part 91). 2 people had minor injuries. 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
- August 9, 1984 · about 4:15 pm local time
- Place
- Delaware, Ohio · Delaware State Park · map
- Type
- Accident
- Injuries
- 2 people had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Cessna 172F · all 172Fs on the register
- Registration
- N8333U · no longer on the register · serial 17252233
- Damage
- Substantial damage
- Flight
- Aerial observation flight · general aviation rules (Part 91)
The NTSB's narrative final · quoted from the NTSB record
AFTER BEING AIRBORNE FOR APRX 20 MIN THE PLT LANDED, TAXIED TO THE END OF THE STRIP, AND DEPARTED AGAIN. AT ABOUT 300 FT AGL THE POWER LOSS OCCURRED. INVESTIGATION OF THE WRECKAGE REVEALED 3 QTS OF OIL IN THE ENG WITH NO APPARENT OIL LEAKS, A COMBINATION OF AVGAS AND AUTOMOBILE FUEL WITH NO APPROPRIATE STC AND AN EXCESSIVELY DIRTY FOAM RUBBER AIR FILTER. MAINT PERSONNEL FOUND NO METAL PARTICLES IN THE ENG OIL SCREEN AND REPORTED THAT THE ENG ROTATED FREELY.
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: single-engine land
- Flight time: 1,500 hours in all; 400 in this make and model; 25 in the last 90 days
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 1,400 hours
- Last inspection: 100-hour inspection, August 1, 1983; 100 hours since
- Maximum gross weight: 2,150 lb
- Seats: 4
- Landing gear: fixed
- Engine: Continental O-300-D (piston); 0 hours total
The flight
- Departed from: I88 Delaware OH at 4:15 pm
- Flight plan: none
- Runway 36, 1,750 ft by 90 ft
Weather at the time
- Light: daylight
- Wind: from 240° at 8 knots
- Visibility: 7 statute miles
- Sky: scat at 2,500 ft
- Temperature: 82°F (28°C), dew point 68°F (20°C)
- Altimeter: 29.00 inHg
- Observation at 3:50 pm from CMH, 24 miles away
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.