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Accidents · NTSB NYC85LA055 · Preliminary: the investigation is not finished

Cessna 206G accident near Endicott, New York, January 20, 1985

On January 20, 1985 at about 3:30 pm local time, a Cessna 206G, registered N9940Z, was substantially damaged in an accident near Endicott, New York (Tri-Cities airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 5 people were 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
January 20, 1985 · about 3:30 pm local time
Place
Endicott, New York · Tri-Cities · map
Type
Accident
Injuries
No one was hurt; 5 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 206G · all 206Gs on the register
Registration
N9940Z · no longer on the register · serial U20606759
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PLT STATED THAT THE ENG RPM DROPPED TO IDLE WHEN HE MADE HIS SECOND PWR REDUCTION ON DOWNWIND IN PREPARATION FOR LANDING. THE THROTTLE COULD NOT BE PUSHED IN WHEN AN ATTEMPT TO ADD PWR WAS MADE. THE ACFT TOUCHED DOWN SHORT OF THE RWY AND CAME TO REST APRX 320 FT FROM THE APCH END OF THE RWY. CAUSE OF THE THROTTLE CONTROL MALFUNCTION WAS NOT DETERMINED.

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: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
  • Flight time: 1,729 hours in all; 7 in this make and model; 171 in the last 90 days; 1,564 as pilot in command
  • Medical certificate: Class 1 (valid medical--no waivers/lim.)
  • Seat: left

The aircraft

  • Airframe total time: 114 hours
  • Last inspection: 100-hour inspection, July 5, 1984; 36 hours since
  • Maximum gross weight: 3,600 lb
  • Seats: 6
  • Landing gear: fixed
  • Engine: Continental IO-520-F (piston); 0 hours total

The flight

  • Departed from: Atlantic City NJ at 1:30 pm
  • Destination: Endicott NY
  • Flight plan: none
  • Runway 21, 3,500 ft by 100 ft

Weather at the time

  • Light: daylight
  • Wind: from 270° at 20 knots, gusting 25
  • Visibility: 15 statute miles
  • Sky: broken clouds at 12,000 ft; not recorded at 12,000 ft
  • Temperature: 1°F (-17°C), dew point 10°F (-12°C)
  • Altimeter: 29.00 inHg
  • Observation at 10:00 am from BGM

Injuries

FatalSeriousMinorNone
Crew1
Passengers4

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.