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Accidents · NTSB DEN91LA027 · Final report

Aeronca 11BC accident near Durango, Colorado, February 3, 1991

On February 3, 1991 at about 10:45 pm local time, a Aeronca 11BC, registered N9713E, was substantially damaged in an accident near Durango, Colorado (Animas Airpark airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE. CONTRIBUTING FACTORS WERE THE PILOT'S LACK OF EXPERIENCE IN AIRPLANE TYPE AND CROSSWIND CONDITIONS.

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

What the record shows

Date
February 3, 1991 · about 10:45 pm local time
Place
Durango, Colorado · Animas Airpark
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Aeronca 11BC · all 11BCs on the register
Registration
N9713E · registry record · serial 11AC-1354
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

THE PILOT REJECTED ONE LANDING ATTEMPT BECAUSE THE APPROACH WAS TOO HIGH AND TOUCHDOWN ON THE 5000-FEET RUNWAY WAS MADE AT ABOUT THE 3000-FEET POINT. THE PILOT NOTED A 6-KNOT CROSSWIND AND SOME TURBULENCE. ON HIS SECOND LANDING ATTEMPT, THE AIRPLANE BOUNCED ONCE, SETTLED TO THE RUNWAY, THEN BEGAN DRIFTING TO THE LEFT. THE PILOT CORRECTED WITH RIGHT RUDDER, AND THE AIRPLANE BEGAN DRIFTING TO THE RIGHT. AIRPLANE STRUCK A SNOW BANK ON THE RIGHT SIDE OF THE RUNWAY. THE PILOT SAID HE HAD LANDED AT THIS AIRPORT BEFORE, BUT THIS WAS HIS FIRST ATTEMPT IN THE AERONCA 11BC. HE SAID HE HAD LMITED EXPERIENCE IN AIRPLANES EQUIPPED WITH A CONVENTIONAL LANDING GEAR, AND EVEN LESS EXPERIENCE IN THE AERONCA 11BC (27.6 HOURS).

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; instrument: airplane; rotorcraft: glider
  • Flight time: 293 hours in all; 28 in this make and model; 155 in the last 90 days; 74 in the last 30 days; 244 as pilot in command
  • Medical certificate: Class 1 (valid medical--w/ waivers/lim.)
  • Seat: frt

The aircraft

  • Last inspection: inspection type not recorded; 0 hours since
  • Maximum gross weight: 1,250 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Continental C-85-12 (piston); 0 hours total

The flight

  • Flight plan: none
  • Runway 19, 5,000 ft by 50 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Wind: from 190° at 4 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 41°F (5°C), dew point 25°F (-4°C)
  • Altimeter: 30.00 inHg
  • Observation at 10:55 pm from DRO, 7 miles away

Injuries

FatalSeriousMinorNone
Crew1
Passengers1

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.