Portland Intl Airport
Aircraft Accident/Incident Report

Portland, Oregon 97208
Saturday, May 26, 2001 23:45 PDT

NTSB Narrative Summary Released at Completion of Accident

On approach to the destination, the landing gear, which is extended by hydraulic actuators powered by an electrically-powered hydraulic power pack, failed to extend. Attempts to recycle the gear and to employ the emergency gear extension procedure (utilizing a hand-operated emergency hydraulic pump) were unsuccessful. The pilot then checked the fluid level in the hydraulic reservoir and found the reservoir empty. He attempted to refill it with various available fluids, but this also proved ineffective in restoring landing gear operation. A passenger succeeded in opening the cabin door and manually pulling the right main gear into the down-and-locked position; the pilot was also able to pull the left main gear into the down position, but the left main gear would not lock down. The pilot subsequently diverted to Portland International Airport (PDX) and performed an emergency landing on runway 28R, an 8,000- by 150-foot grooved asphalt runway. During the emergency landing, the aircraft dropped to a 30-degree left wing down attitude upon touchdown, then turned 180 degrees to the left and came to rest in the grass alongside the runway, sustaining substantial damage in the landing. The pilot reported that a post-accident inspection revealed that a hydraulic line in the nose gear well had burst, allowing a total loss of hydraulic fluid from the system.

NTSB Probable Cause Narrative

A burst hydraulic line and consequent total loss of hydraulic fluid from the landing gear, which disabled landing gear operation.

Event Information

Type of Event Accident
Event Date 5/26/2001
Event Day of the Week Saturday
Time of Event 2345
Event Time Zone Pacific Daylight Time
Event City Portland
Event State OREGON
Event Country --
Zipcode of the event site 97208
Event Date Year 2001
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Portland Intl
Event Location Nearest Airport ID PDX
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 30
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 2155 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID PDX
Elevation of weather observation facility 30
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Night
Lowest Ceiling Height 24000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.8
Density Altitude (feet) --
Intensity of Precipitation --
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 5
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 11541
NTSB Notification Source FAA ROC
NTSB Notification Date May 27 2001 12:00AM
NTSB Notification Time 40
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 20 2002 1:46PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Portland (Hillsboro), OR

Aircraft Involved

Aircraft #1

Aircraft Registration Number N761DL
NTSB Number SEA01LA105
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 Cessna
Aircraft Model T210M
Aircraft Series Identifier --
Aircraft Serial Number 21062173
Certified Max Gross Weight 3800
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 29 2000 12:00AM
Airframe hours since last inspection 70
Airframe Hours 2680
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Daniel B. Davidson
Aircraft Owner Street Address 7384 Valley St.
Aircraft Owner City Dalton Gardens
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83815
Operator is an individual? Yes
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 COE
Departure City Coeur d'Alene
Departure State ID
Departure Country USA
Departure Time 1900
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code AST
Destination City Astoria
Destination State OR
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? No
Evacuation occurred --
Date of most recent change to record Jan 19 2002 1:58PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location 28R
Runway Length 8000
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --