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Accidents · NTSB ANC20CA037 · Final report

Cessna 207 accident near Kwigillingok, Alaska, December 10, 2019

On December 10, 2019 at about 1:15 am local time, a 1981 Cessna 207, registered N9728M, was substantially damaged in an accident during takeoff near Kwigillingok, Alaska (Kwigillingok airport). It was flown under charter and air-taxi rules (Part 135). 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 pilot's improper decision to depart from an ice-covered runway with a strong crosswind, which resulted in a loss of directional control, runway excursion, and impact with a ditch.

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

What the record shows

Date
December 10, 2019 · about 1:15 am local time
Place
Kwigillingok, Alaska · Kwigillingok · map
Type
Accident
Injuries
No one was hurt; 1 person was on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 207 A, built 1981 · all 207s on the register
Registration
N9728M · registry record · serial 20700721
Damage
Substantial damage
Flight
Flight · charter and air-taxi rules (Part 135)

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

The pilot reported that he was departing from an ice-covered runway with a strong crosswind. After lining up on the runway, he added power and felt the airplane slide right. To correct, he applied left rudder and left brake to no avail. He reduced the engine power to idle and again applied left rudder and left brake, but the airplane continued to slide. He subsequently pulled the mixture to idle cutoff. The airplane slid off the runway and impacted a ditch, which resulted in substantial damage to the right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

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

What happened, in order

  1. Miscellaneous/other during takeoff
  2. Loss of control on ground during takeoff defining event
  3. Attempted remediation/recovery during takeoff
  4. Collision with terrain or object (not controlled flight into terrain) during takeoff

The NTSB's findings

  • cause Personnel issues › Action/decision › Info processing/decision › Decision making/judgment › Pilot
  • cause Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Directional control › Not attained/maintained
  • cause Environmental issues › Physical environment › Runway/land/takeoff/taxi surface › Snow/slush/ice covered surface › Effect on operation
  • cause Environmental issues › Physical environment › Runway/land/takeoff/taxi surface › Snow/slush/ice covered surface › Decision related to condition
  • cause Environmental issues › Conditions/weather/phenomena › Wind › Crosswind › Effect on operation

Pilot

  • Certificate: commercial pilot
  • Ratings: multi-engine land; single-engine land; instrument: airplane
  • Flight time: 1,491.8 hours in all; 516.7 in this make and model; 121.6 in the last 90 days; 22 in the last 30 days
  • Last flight review: May 14, 2019
  • Medical certificate: Class 1 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 29,228.2 hours
  • Last inspection: approved inspection programme, November 4, 2019
  • Maximum gross weight: 3,803 lb
  • Landing gear: fixed
  • Engine: Continental IO-520-F (piston); 5,312 hours total
  • Operator: Grant Aviation Inc

The flight

  • Departed from: GGV Kwigillingok AK
  • Destination: BET Bethel AK
  • Runway 15, 1,835 ft by 40 ft

Weather at the time

  • Light: daylight
  • Wind: from 110° at 32 knots, gusting 37
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 36°F (2°C), dew point 32°F (0°C)
  • Altimeter: 28.42 inHg

Injuries

FatalSeriousMinorNone
Flight crew1

Documents from the investigation the NTSB's docket: the evidence folder behind the report

2 documents, released by the NTSB on April 7, 2020. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.

The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.

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.