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Accidents · NTSB SEA89LA080 · Final report

Amateur-built SUPER KOALA accident near Kelso, Washington, May 6, 1989

On May 6, 1989 at about 7:53 pm local time, a amateur-built SUPER KOALA, registered N30SK, was destroyed in an accident near Kelso, Washington (Kelso airport). It was a personal flight under general aviation rules (Part 91). 1 person had minor injuries. The weather was visual conditions (good weather).

The NTSB's probable cause their words, unchanged

THE PILOT'S FAILURE TO ADEQUATELY COMPENSATE FOR WIND CONDITIONS, AND THE PILOT'S DELAY IN INITIATING A GO-AROUND. CONTRIBUTING TO THE ACCIDENT WERE CROSSWIND GUSTS, AND LACK OF TOTAL PILOT EXPERIENCE.

Source: NTSB aviation accident database, copy made October 12, 2026. Docket and reports at the NTSB.

What the record shows

Date
May 6, 1989 · about 7:53 pm local time · cases in 1989
Place
Kelso, Washington · Kelso · cases near this airport · map
Type
Accident
Injuries
1 person had minor injuries.
Weather
visual conditions (good weather)
Aircraft
Amateur-built SUPER KOALA SUPER KOAL
Registration
N30SK · no longer on the register · serial 030
Damage
Destroyed
Flight
Personal flight · general aviation rules (Part 91)

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

STUDENT PILOT ON FIRST FLIGHT IN 30 DAYS IN HOMEBUILT ENCOUNTERED A CROSSWIND GUST ON LNDG APPROACH. ACFT ENTERED RIGHT BANK WHICH PLT COULD NOT CORRECT. PWR WAS ADDED FOR ATTEMPTED GO-AROUND BUT BANK CONTINUED TO IMPACT. INVESTIGATION REVEALED NO EVIDENCE OF CONTROL MALFUNCTION.

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
  • Flight time: 64 hours in all; 28 in this make and model; 18 in the last 90 days; 10 in the last 30 days; 40 as pilot in command
  • Medical certificate: Class 3 (valid medical--no waivers/lim.)
  • Seat: rgt

The aircraft

  • Airframe total time: 28 hours
  • Last inspection: inspection type not recorded; 28 hours since
  • Maximum gross weight: 800 lb
  • Seats: 2
  • Landing gear: fixed
  • Engine: Rotax 503 (piston); 0 hours total

The flight

  • Destination: KLS
  • Flight plan: none
  • Runway 29, 4,400 ft by 100 ft

Weather at the time

  • Light: daylight
  • Wind: from 270° at 10 knots, gusting 15
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 70°F (21°C), dew point 0°F (-18°C)

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.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/SEA89LA080.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.