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Accidents · NTSB SEA08LA120 · Final report

Yakovlev Yak 52 accident near Vancouver, Washington, May 2, 2008

On May 2, 2008 at about 11:30 pm local time, a Yakovlev Yak 52, registered N62813, was substantially damaged in an accident during maneuvering (aerobatics) near Vancouver, Washington (Green Mountain airport). It was a personal flight under general aviation rules (Part 91). 2 people were killed. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

The pilot's failure to maintain an airspeed sufficient to avoid a stall during a low altitude aerobatic maneuver. Contributing to the accident was the low altitude at which the pilot initiated the maneuver.

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

What the record shows

Date
May 2, 2008 · about 11:30 pm local time
Place
Vancouver, Washington · Green Mountain · map
Type
Accident
Injuries
2 people were killed.
Weather
visual conditions (good weather)
Aircraft
Yakovlev Yak 52 · all Yak 52s on the register
Registration
N62813 · no longer on the register · serial 800608
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

Witnesses located near the accident reported seeing the airplane takeoff, make a 180 degree turn, and fly down the runway at an altitude of about 30 feet above ground level (agl). As the airplane crossed the end of the runway, it pitched upwards into a steep climb, and the pilot did an aileron roll to the right, about 200 feet agl. The witness said that at the completion of the roll, the airplane appeared to be in a level attitude when a slight movement was observed, "as if it hit turbulence." The airplane subsequently descended in a nose-low attitude, eventually descending below a tree line. Examination of the airplane revealed no anomalies with the engine or airframe 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. Loss of control in flight during maneuvering (aerobatics) defining event
  2. Collision with terrain or object (not controlled flight into terrain) during uncontrolled descent

The NTSB's findings

  • factor Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
  • cause Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Airspeed › Not attained/maintained

Pilot

  • Certificate: airline transport pilot, flight instructor, commercial pilot
  • Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane
  • Flight time: 20,000 hours in all
  • Last flight review: June 1, 2006
  • Medical certificate: Class 3 (with waivers/limitations)
  • Seat: frt
  • Injury: fatal

The aircraft

  • Last inspection: inspection type not recorded
  • Maximum gross weight: 2,899 lb
  • Seats: 2
  • Landing gear: retractable
  • Engine: Vedeneev M-14P (piston); 0 hours total

The flight

  • Departed from: WA67 Vancouver WA at 11:25 pm
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: from 100° at 7 knots
  • Visibility: 10 statute miles
  • Sky: broken clouds at 11,000 ft; a few clouds at 6,000 ft
  • Temperature: 68°F (20°C), dew point 43°F (6°C)
  • Altimeter: 30.04 inHg
  • Observation at 11:53 pm from KPDX, 7 miles away

Injuries

FatalSeriousMinorNone
Flight 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.