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Accidents · NTSB ANC07CA023 · Final report

Cessna 172 accident near Chugiak, Alaska, March 10, 2007

On March 10, 2007 at about 4:00 pm local time, a Cessna 172, registered N73813, was substantially damaged in an accident near Chugiak, Alaska (Birchwood Airport). It was an instructional 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).

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The NTSB's probable cause their words, unchanged

The instructor pilot's inadequate supervision of the student while landing, which resulted in an undershoot, and subsequent in-flight collision with snow-covered terrain.

Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.

What the record shows

Date
March 10, 2007 · about 4:00 pm local time
Place
Chugiak, Alaska · Birchwood Airport · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 172 · all 172s on the register
Registration
N73813 · registry record · serial 17267693
Damage
Substantial damage
Flight
Instructional flight · general aviation rules (Part 91)

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

The certificated flight instructor was providing primary flight instruction to the student pilot under Title 14, CFR Part 91, at the time of the accident. The flight instructor reported that while on final approach to land, he inadvertently allowed the student pilot to descend into a snow-covered area, about 40 feet short of the runway threshold. As the airplane's main wheels contacted an area of deep, hard packed snow, the airplane nosed down, and right wing struck the snow-covered terrain, sustaining substantial damage. The instructor noted that there were no preaccident mechanical anomalies with the airplane.

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

Flight instructor

  • Certificate: flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; instructor: airplane single-engine; instrument: airplane
  • Flight time: 905 hours in all; 558 in this make and model; 128 in the last 90 days; 56 in the last 30 days; 822 as pilot in command; 499 on instruments
  • Last flight review: June 1, 2005
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: rgt
  • Injury: no injuries

Dual student

  • Certificate: student
  • Flight time: 8 hours in all; 5 in this make and model; 5 in the last 90 days; 4 in the last 30 days
  • Medical certificate: Class 3 (without waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Maximum gross weight: 2,550 lb
  • Seats: 4
  • Landing gear: fixed
  • Engine: Lycoming O-360 (piston); 0 hours total
  • Operator: Elmendorf Aero Club

The flight

  • Departed from: EDF Anchorage AK at 3:30 pm
  • Destination: BCV Chugiak AK
  • Runway 19R, 4,010 ft by 100 ft
  • A second pilot was aboard

Weather at the time

  • Light: daylight
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 23°F (-5°C), dew point 5°F (-15°C)
  • Altimeter: 29.52 inHg

Injuries

FatalSeriousMinorNone
Crew2

Other NTSB records under N73813 the same tail number, which may have belonged to a different aircraft at the time

1992-05-09ANC92FA069 · accident near Ruth Glacier, AK · substantial damage · no injuries

About this page

Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number ANC07CA023.