Sioux Gateway /Col. Bud Airport
Aircraft Accident/Incident Report

Sioux City, Iowa 51111
Tuesady, January 19, 2010 7:15 CST

NTSB Narrative Summary Released at Completion of Accident

The pilot of the Part 91 business flight filed an instrument-flight-rules (IFR) flight plan with the destination and alternate airports, both of which were below weather minimums. The pilot and copilot departed from the departure airport in weather minimums that were below the approach minimums for the departure airport. While en route, the destination airport's automated observing system continued to report weather below approach minimums, but the flight crew continued the flight. The flight crew then requested and were cleared for the instrument landing system (ILS) 31 approach and while on that approach were issued visibilities of 1,800 feet runway visual range after changing to tower frequency. During landing, the copilot told the pilot that he was not lined up with the runway. The pilot reportedly said, "those are edge lights," and then realized that he was not properly lined up with the runway. The airplane then touched down beyond a normal touchdown point, about 2,800 feet down the runway, and off the left side of the runway surface. The airplane veered to the left, collapsing the nose landing gear. Both flight crewmembers had previous experience in Part 135 operations, which have more stringent weather requirements than operations conducted under Part 91. Under Part 135, IFR flights to an airport cannot be conducted and an approach cannot begin unless weather minimums are above approach minimums. The accident flight's departure in weather below approach minimums would have precluded a return to the airport had an emergency been encountered by the flight crew, leaving few options and little time to reach a takeoff alternate airport. The company's flight procedures allow for a takeoff to be performed as long as there is a takeoff alternate airport within one hour at normal cruise speed and a minimum takeoff visibility that was based upon the pilot being able to maintain runway alignment during takeoff. The company's procedures did not allow flight crew to depart to an airport that was below minimums but did allow for the flight crew, at their discretion, to perform a "look-see" approach to approach minimums if the weather was below minimums. The allowance of a "look see" approach essentially negates the procedural risk mitigation afforded by requiring approaches to be conducted only when weather was above approach minimums.

NTSB Probable Cause Narrative

The flight crew's decision to attempt a flight that was below takeoff, landing, and alternate airport weather minimums, which led to a touchdown off the runway surface by the pilot-in-command.

Event Information

Type of Event Accident
Event Date 1/19/2010
Event Day of the Week Tuesday
Time of Event 715
Event Time Zone Central Standard Time
Event City Sioux City
Event State IOWA
Event Country --
Zipcode of the event site 51111
Event Date Year 2010
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport Sioux Gateway Airport/Col. Bud
Event Location Nearest Airport ID SUX
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 1098
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 652 Central Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID SUX
Elevation of weather observation facility 1098
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation CST
Lighting Conditions Dawn
Lowest Ceiling Height 100
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Indefinite (V V)
Visibility Runway Visual Range (Feet) 1800
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 0.5
Air Temperature at event time (in degrees celsius) -4
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 120
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) 29.91
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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 27224
NTSB Notification Source FAA-DSM-FSDO
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 23 2010 3:35PM
User who most recently changed record bowl
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N586BC
NTSB Number CEN10LA105
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 BEECH
Aircraft Model B200
Aircraft Series Identifier --
Aircraft Serial Number BB-1223
Certified Max Gross Weight 12500
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats 10
Total number of seats on the aircraft 10
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection Oct 15 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 10304
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Blue Cross and Blue Shield of Iowa
Aircraft Owner Street Address 636 Grand AVE
Aircraft Owner City Des Moines
Aircraft Owner State IA
Aircraft Owner Country USA
Aircraft Owner Zipcode 50309
Operator is an individual? No
Operator Name Blue Cross and Blue Shield of Iowa
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City --
Operator State --
Operator Country USA
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 No
Departure Airport Code DSM
Departure City Des Moines
Departure State IA
Departure Country USA
Departure Time 636
Departure Time Zone CST
Destination Same as Local Flt crash at destination city
Destination Airport Code SUX
Destination City Sioux City
Destination State IA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 18 2010 11:51AM
User who most recently changed record galm
Since inspection or accident Time of Accident
Event Location Runway Number and Location 31
Runway Length 9002
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --