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Accidents · NTSB SEA07LA026 · Final report

Cessna 310B accident near Lake Stevens, Washington, December 6, 2006

On December 6, 2006 at about 7:50 pm local time, a Cessna 310B, registered N6640B, was substantially damaged in an accident near Lake Stevens, Washington (Frontier 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 collapse of the main landing gear for an undetermined reason while taxiing from landing.

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

What the record shows

Date
December 6, 2006 · about 7:50 pm local time
Place
Lake Stevens, Washington · Frontier Airpark · map
Type
Accident
Injuries
No one was hurt; 2 people were on board or involved.
Weather
visual conditions (good weather)
Aircraft
Cessna 310B · all 310Bs on the register
Registration
N6640B · no longer on the register · serial 35740
Damage
Substantial damage
Flight
Personal flight · general aviation rules (Part 91)

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

The pilot said that while taxiing to his hangar, the left main landing gear collapsed, resulting in structural damage to the left outboard wing rib. No determination was made as to why the landing gear collapsed.

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: commercial pilot, private
  • Ratings: multi-engine land; single-engine land; single-engine sea; instrument: airplane
  • Flight time: 1,455 hours in all; 772 in this make and model; 7 in the last 90 days; 5 in the last 30 days; 1,204 as pilot in command
  • Last flight review: June 1, 2006
  • Medical certificate: Class 2 (with waivers/limitations)
  • Seat: left
  • Injury: no injuries

The aircraft

  • Airframe total time: 4,557 hours
  • Last inspection: annual inspection, June 1, 2006
  • Maximum gross weight: 4,800 lb
  • Seats: 5
  • Landing gear: retractable
  • Engine: Continental O-470 (piston); 0 hours total

The flight

  • Departed from: AWO Arlington WA at 7:30 pm
  • Destination: WN53 Lake Stevens WA
  • Flight plan: none

Weather at the time

  • Light: daylight
  • Wind: at 0 knots
  • Visibility: 10 statute miles
  • Sky: clear
  • Temperature: 46°F (8°C), dew point 43°F (6°C)
  • Altimeter: 30.26 inHg
  • Observation at 7:55 pm from AWO, 5 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.