- Date
- December 6, 2006, 11:50 local (19:50 UTC)
- Place
- Lake Stevens, WA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Taxi
- Aircraft
- N6640BCessna 310B
- Weather
- Visual (VMC) · Day
- Status
- Completed · report April 25, 2007
- Report
- Approved by Office Director
- Parties
- FAA FSDO
- FAA report
- 20061206025969A
- Case key
- 64967
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The NTSB’s determination of the probable cause, and any contributing factors.
The collapse of the main landing gear for an undetermined reason while taxiing from landing.
Analysis
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.
Factual narrative
On December 6, 2006, at approximately 1150 Pacific standard time, a Cessna 310B, N6640B, was substantially damaged when the left main landing gear collapsed during taxi at Frontier Airpark (WN53), Lake Stevens, Washington. The commercial pilot and his passenger were not injured. The owner/pilot was operating the airplane under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the cross-country flight which had departed Arlington, Washington, approximately 20 minutes before the accident. No flight plan had been filed.
The pilot said that while taxiing to his hangar, the left main landing gear collapsed. The airplane settled onto the left wing's tip tank. The most outboard rib will need replacing, and the wing's upper skin was also wrinkled. The airplane's landing gear had collapsed previously, approximately 6 months ago. No determination was made as to why the landing gear collapsed on this occasion.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Aircraft
- Registration
- N6640B
- Reported as
- Cessna 310B
- Category
- Airplane
- Serial number
- 35740
- Airframe hours
- 4,557
- Engine
- Continental O-470, 240 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Gregg L. Ortega
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · June 1, 2006
- Departed
- AWO · Arlington, WA
- Destination
- WN53 · Lake Stevens, WA
- Airport
- WN53 · Frontier Airpark
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 50
- Injuries
- None
- Certificates
- Private, Commercial
- Airplane ratings
- Single-engine land, Multi-engine land, Single-engine sea
- Instrument ratings
- Airplane
- Medical
- Class 2, With waivers/limitations
- Last flight review
- June 1, 2006
- Seat
- Left
- Flight hours
- 1,455 total · 772 in this make and model · 1,204 as pilot in command · 7 in the last 90 days · 5 in the last 30 days · 1 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 0° at 0 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 46 °F, dew point 43 °F
- Altimeter
- 30.26 inHg
- Observed at
- AWO, 5 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.