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Accidents · NTSB MKC87LA001 · Preliminary: the investigation is not finished

Aeronca 7AC accident near Tribune, Kansas, October 6, 1986

On October 6, 1986, a Aeronca 7AC, registered N84911, was substantially damaged in an accident near Tribune, Kansas. 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
October 6, 1986
Place
Tribune, Kansas · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Aeronca 7AC · all 7ACs on the register
Registration
N84911 · registry record · serial 3630
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PIC RPTD ENG FAILURE WHILE IN CRUISE FLT. THE STUDENT PIC SUSPECTED CARB ICING AS THE CAUSE OF THE ENG FAILURE. NO MECHANICAL PBLM WAS DISCOVERED DURING THE ENG INSPECTION. THE ICING PROBABILITY CHARTS INDICATED THAT CARBURETOR ICING WAS LIKELY IN THE CRUISE PWR CONFIGURATION THE PIC WAS USING. NO FUEL CONTAMINATES OR OTHER DESCREPANCIES WERE DISCOVERED DURING THE FOLLOW-UP INSPECTION.

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: student
  • Ratings: single-engine land
  • Flight time: 52 hours in all; 52 in this make and model; 7 in the last 90 days; 24 as pilot in command
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: unk

The aircraft

  • Airframe total time: 1,950 hours
  • Last inspection: 100-hour inspection, September 5, 1986; 12 hours since
  • Maximum gross weight: 1,220 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental A-65 (piston); 0 hours total

The flight

  • Departed from: 5K2 Tribune KS at 11:30 pm
  • Flight plan: none
  • Runway 0

Weather at the time

  • Light: dusk
  • Wind: from 080° at 6 knots
  • Visibility: 15 statute miles
  • Sky: broken clouds at 25,000 ft; scat at 10,000 ft
  • Temperature: 66°F (19°C), dew point 45°F (7°C)
  • Altimeter: 30.00 inHg
  • Observation at 11:50 pm from GCK

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.