Cessna 421B accident near Knoxville, Tennessee, June 9, 1988
On June 9, 1988 at about 4:03 pm local time, a Cessna 421B, registered N700SC, was destroyed in an accident near Knoxville, Tennessee. It was a business flight under general aviation rules (Part 91). 1 person was killed. The weather was instrument conditions (cloud, fog or low visibility).
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
- June 9, 1988 · about 4:03 pm local time
- Place
- Knoxville, Tennessee
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- instrument conditions (cloud, fog or low visibility)
- Aircraft
- Cessna 421B · all 421Bs on the register
- Registration
- N700SC · no longer on the register · serial 421B0910
- Damage
- Destroyed
- Flight
- Business flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: private
- Ratings: multi-engine land; single-engine land; instrument: airplane
- Flight time: 435 hours in all; 250 in this make and model; 117 in the last 90 days; 68 in the last 30 days; 344 as pilot in command
- Medical certificate: Class 3 (valid medical--no waivers/lim.)
- Seat: left
The aircraft
- Airframe total time: 3,516 hours
- Last inspection: annual inspection, July 23, 1987; 120 hours since
- Maximum gross weight: 7,450 lb
- Seats: 8
- Landing gear: retractable
- Engine: Continental GTSIO-520-H (piston); 0 hours total
The flight
- Departed from: IND Indianapolis IN at 2:36 pm
- Destination: JAX Jacksonville FL
- Flight plan: IFR
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 040° at 11 knots
- Visibility: 1 statute miles
- Sky: overcast at 3,400 ft; not recorded
- Temperature: 66°F (19°C), dew point 64°F (18°C)
- Altimeter: 29.00 inHg
- Observation at 3:50 pm from TYS
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.
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.