Mahlon Sweet Field Airport
Aircraft Accident/Incident Report

Eugene, Oregon 97401
Sunday, February 11, 2001 17:20 PST

NTSB Narrative Summary Released at Completion of Accident

After taxiing and taking off in "very icy conditions," the pilot was unable to get the nose gear to fully retract even after multiple recycle attempts. Because of the severe weather at his point of departure, the pilot elected to continue to his planned destination. At the destination ILS final approach fix, the pilot moved the gear handle to the DOWN position, but the nose gear did not fully extend. He therefore recycled the gear a number of times, with and without full rudder pedal application, but the nose gear would not fully extend and lock. During the landing, the initial touchdown was successful, but as the nose gear was lowered to the runway, it collapsed back into the wheel well. During a post-accident inspection, after prying the nose wheel loose from the well with a bar, it rotated to the full down and locked position. After the bushing collar bolts at the base of the gear strut oleo body were loosened, the nose gear was able to be centered. The post-accident inspection did not reveal any anomalies in the extension and retraction assembly, and it could not be positively determined why the gear did not fully retract or extend.

NTSB Probable Cause Narrative

an undetermined malfunction of the nose gear system which resulted in the failure of the nose gear to fully extend and lock prior to landing.

Event Information

Type of Event Accident
Event Date 2/11/2001
Event Day of the Week Sunday
Time of Event 1720
Event Time Zone Pacific Standard Time
Event City Eugene
Event State OREGON
Event Country --
Zipcode of the event site 97401
Event Date Year 2001
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Mahlon Sweet Field
Event Location Nearest Airport ID EUG
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 369
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Dusk
Lowest Ceiling Height 500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 1
Air Temperature at event time (in degrees celsius) 2
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.79
Density Altitude (feet) --
Intensity of Precipitation Moderate
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 10338
NTSB Notification Source FAA Operations Center
NTSB Notification Date Feb 11 2001 12:00AM
NTSB Notification Time 1730
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jul 30 2001 11:11AM
User who most recently changed record MONR
Basic weather conditions Instrument Meteorological Cond
FAA District Office Portland FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N690AC
NTSB Number SEA01LA049
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Aero Commander
Aircraft Model AC-690
Aircraft Series Identifier --
Aircraft Serial Number 11527
Certified Max Gross Weight 10350
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Oct 5 2000 12:00AM
Airframe hours since last inspection 95
Airframe Hours 6450
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Patrick M Gisler
Aircraft Owner Street Address 1470 NE 1st Street., Suite 100
Aircraft Owner City Bend
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97701
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RDM
Departure City Redmond
Departure State OR
Departure Country USA
Departure Time 1655
Departure Time Zone PST
Destination Same as Local Flt crash at destination city
Destination Airport Code EUG
Destination City Eugene
Destination State --
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record May 1 2001 6:00PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 16
Runway Length 8000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --