Portland-Hillsboro Airport
Aircraft Accident/Incident Report

Hillsboro, Oregon 97124
Monday, November 21, 2005 6:00 PST

NTSB Narrative Summary Released at Completion of Accident

The pilot said that as they raised the landing gear on takeoff, and the right main landing gear (MLG) door did not retract. He said that the checklist instructed him to cycle the landing gear; when he cycled the landing gear, the right MLG became jammed in the half down position. The pilot performed a low fly-by, and maintenance personnel on the ground photographed the bottom of the airplane. Gulfstream Aerospace engineers reviewed the photograph and advised the pilot in how to extend the landing gear. The pilot was then able to extend the landing gear. Six hours and ten minutes after takeoff, the airplane landed successfully. Post-incident examination of the right MLG revealed a black/rubber skid mark on the inside of the MLG door; the skid mark terminated at a row of 27 bolts which hold a gap seal in place. The outboard tire of the right MLG truck exhibited seven evenly spaced gouges which matched the spacing of the gap seal bolts. The MLG door uplock linkage bungee/actuator's (P/N 1159L50903-1) exterior exhibited advanced exfoliating corrosion.

NTSB Probable Cause Narrative

The failure of the right main landing gear (MLG) door uplock linkage actuator due to corrosion, which resulted in jamming of the right MLG during the initial takeoff climb.

Event Information

Type of Event Incident
Event Date 11/21/2005
Event Day of the Week Monday
Time of Event 600
Event Time Zone Pacific Standard Time
Event City Hillsboro
Event State OREGON
Event Country --
Zipcode of the event site 97124
Event Date Year 2005
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 453225N
Event Location Longitude 1225659W
Event Location Airport Portland-Hillsboro Airport
Event Location Nearest Airport ID HIO
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 204
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 553 Pacific Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID HIO
Elevation of weather observation facility 204
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PST
Lighting Conditions Night/Bright
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) -3
Dew Point at event time (in degress fahrenheit) -3
Wind Direction (degrees magnetic) 310
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.32
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 7
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 19439
NTSB Notification Source NW FAA ROC
NTSB Notification Date Nov 21 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 28 2006 1:55PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Portland, OR

Aircraft Involved

Aircraft #1

Aircraft Registration Number N225GV
NTSB Number SEA06IA019
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Minor
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Gulfstream Aerospace
Aircraft Model G-5
Aircraft Series Identifier --
Aircraft Serial Number 672
Certified Max Gross Weight 90500
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 18
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection Nov 1 2005 12:00AM
Airframe hours since last inspection --
Airframe Hours 2271
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Nike Inc.
Aircraft Owner Street Address 4223 NE Penny Way
Aircraft Owner City Hillsboro
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97124
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) Business
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code HIO
Departure City Hillsboro
Departure State OR
Departure Country USA
Departure Time 600
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code CYYZ
Destination City Toronto
Destination State --
Destination Country CA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 13 2006 4:23PM
User who most recently changed record STAM
Since inspection or accident Time of Accident
Event Location Runway Number and Location 030
Runway Length 6600
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --