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Accidents · NTSB ATL89FA177 · Final report

Cessna 172 accident near Townsend, Tennessee, July 11, 1989

On July 11, 1989 at about 5:28 pm local time, a Cessna 172, registered N8855B, was destroyed in an accident near Townsend, Tennessee. It was a personal flight under general aviation rules (Part 91). 1 person was seriously injured. The weather was instrument conditions (cloud, fog or low visibility).

The NTSB's probable cause their words, unchanged

IMPROPER IN-FLIGHT PLANNING/DECISION BY THE PILOT AND HIS DELAY IN INITIATING REMEDIAL ACTION, WHEN HE ENCOUNTERED LOW CEILINGS OVER MOUNTAINOUS TERRAIN, WHICH RESULTED IN HIS INABILITY TO MAINTAIN SUFFICIENT ALTITUDE. CONTRIBUTING FACTORS WERE: THE PILOT'S INADEQUATE PREFLIGHT PLANNING/DECISION, HIS FAILURE TO USE IN-FLIGHT WEATHER BRIEFING SERVICE, HIS PROBABLE PHYSICAL IMPAIRMENT FROM MEDICATION/DRUGS, AND THE TERRAIN AND WEATHER CONDITIONS.

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

What the record shows

Date
July 11, 1989 · about 5:28 pm local time
Place
Townsend, Tennessee · map
Type
Accident
Injuries
1 person was seriously injured.
Weather
instrument conditions (cloud, fog or low visibility)
Aircraft
Cessna 172 · all 172s on the register
Registration
N8855B · no longer on the register · serial 36555
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT DEPD DAYTON, OH, AT ABOUT 0800 ON A FLT TO MACON, GA. HE MADE AN EN ROUTE STOP AT CROSSVILLE, TN. DUE TO WX ON HIS ROUTE, HE CHOSE TO FLY TO KNOXVILLE (DKX), TN, TO REFUEL, THEN GO DIRECT TO MACON. AFTER REFUELING AT DKX, THE PLT DEPD FOR A DIRECT FLT OVER THE MTNS. HE STATED THAT THE PEAKS WERE TOO HIGH AND HE FOUND A MTN VALLEY LEADING TO A PASS ACROSS THE RIDGE LINE. HE OBSERVED CUMULUS CLOUDS OVER THE PEAKS. BEFORE REACHING THE CREST, THE CLOUDS BEGAN TO MOVED IN AROUND HIM. HE STARTED A TURN BACK TO AVOID THE CLOUDS, BUT THE LNDG GEAR BRUSHED THE TREES. SUBSEQUENTLY, THE ACFT CRASHED. PERSONNEL HIKING IN THE AREA HEARD THE CRASH, FOUND THE ACFT, GAVE FIRST AID TO THE PLT, & OBTAINED HELP FROM PARK RANGERS. THE PLT WAS EVACUATED BY HELICOPTER AFTER DELAYS DUE TO THUNDERSTORMS IN THE AREA. THE PLT INDCD HE WAS TAKING PRESCRIPTION DRUGS. A TOXICOLOGY CHECK SHOWED HIS BLOOD CONTAINED 0.095 MG/L OF NORDIAZEPAM. CANNABINOIDS WERE DETECTED IN HIS URINE, BUT NONE WAS FOUND IN HIS BLOOD.

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: private
  • Ratings: single-engine land
  • Flight time: 92 hours in all; 15 in this make and model; 5 in the last 90 days; 3 in the last 30 days; 52 as pilot in command
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 4,108 hours
  • Last inspection: annual inspection, July 10, 1989; 3 hours since
  • Maximum gross weight: 2,075 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Continental O-300-A (piston); 0 hours total
  • Operator: Moraine Air Service

The flight

  • Departed from: DKX Knoxville TN at 5:00 pm
  • Destination: MCN Macon GA
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: daylight
  • Wind: from 330° at 6 knots
  • Visibility: 4 statute miles
  • Sky: scat at 2,500 ft
  • Temperature: 88°F (31°C), dew point 72°F (22°C)
  • Altimeter: 30.00 inHg

Injuries

FatalSeriousMinorNone
Crew1

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.