Walker Field Airport
Aircraft Accident/Incident Report

Grand Junction, Colorado 81506
Wednesday, September 27, 2000 9:59 MDT

NTSB Narrative Summary Released at Completion of Accident

The on-demand cargo flight had been uneventful until the pilot made his landing approach. When he lowered the landing gear, the right main landing gear failed to extend and lock. A low pass was made and tower personnel confirmed that the landing gear was not extended. The pilot followed emergency procedures in an attempt to extend the landing gear, but to no avail. He made an intentional gear up landing. Postaccident examination disclosed that the right forward inboard landing gear door hinge pin (p/n 46652-2) had broken, preventing the landing gear from extending.

NTSB Probable Cause Narrative

Total failure of the right forward inboard landing gear door hinge pin for undetermined reasons.

Event Information

Type of Event Accident
Event Date 9/27/2000
Event Day of the Week Wednesday
Time of Event 959
Event Time Zone Mountain Daylight Time
Event City GRAND JUNCTION
Event State COLORADO
Event Country --
Zipcode of the event site 81506
Event Date Year 2000
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport WALKER FIELD
Event Location Nearest Airport ID GJT
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 4858
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 936 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID GJT
Elevation of weather observation facility 4858
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 6152
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 622
NTSB Notification Source FAA NW OPERATIONS CENTER
NTSB Notification Date Sep 27 2000 12:00AM
NTSB Notification Time 1857
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Apr 21 2001 4:04AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N159SW
NTSB Number DEN01LA005
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-31-350
Aircraft Series Identifier PA-31-350
Aircraft Serial Number 31-7405229
Certified Max Gross Weight 7000
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 2
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 10 2000 12:00AM
Airframe hours since last inspection 48
Airframe Hours 22422
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name WESTERN AVIATORS INC.
Aircraft Owner Street Address 2533 LANYON DR
Aircraft Owner City LONGMONT
Aircraft Owner State CO
Aircraft Owner Country
Aircraft Owner Zipcode 80503
Operator is an individual? --
Operator Name WESTERN AVIATORS, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 28690 AVIATORS WAY
Operator City GRAND JUNCTION
Operator State CO
Operator Country
Operator Zip code 81506
Operator Code W6TA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RIL
Departure City RIFLE
Departure State CO
Departure Country
Departure Time 905
Departure Time Zone MDT
Destination Same as Local Flt crash at destination city
Destination Airport Code GJT
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 21 2001 4:04AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 4
Runway Length 5502
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --