Individually Owned: 150,657
Corporate Owned: 137,281
Boise Air Terminal /Gowen Fld/ Airport
Aircraft Accident/Incident Report
Boise, Idaho 83705
Tuesady, November 9, 2004 4:20 MST
NTSB Narrative Summary Released at Completion of Accident
During a night instrument landing system (ILS) approach to minimums, the airplane collided with the runways approach lighting system. In a written report the pilot stated that during the transition from instruments to visual references he "apparently went below the glide slope and took out two approach lights." The weather conditions recorded 16 minutes after the time of the accident were: visibility 1/4 statute mile in fog; scattered clouds at 100 feet AGL (above ground level); overcast skies at 600 feet AGL. The published decision height/altitude for the straight-in ILS runway 10R approach at Boise is 3,036 feet above mean sea level (200 feet AGL). The published minimum visibility for a straight-in ILS approach is 1/2 mile or an RVR of 1,800 feet.
NTSB Probable Cause Narrative
The pilot's failure to maintain the required glidepath, and his failure to maintain obstacle clearance after visual contact with the runway during the instrument approach.
Event Information
| Type of Event | Accident |
| Event Date | 11/9/2004 |
| Event Day of the Week | Tuesday |
| Time of Event | 420 |
| Event Time Zone | Mountain Standard Time |
| Event City | Boise |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83705 |
| Event Date Year | 2004 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 433352N |
| Event Location Longitude | 1161322W |
| Event Location Airport | BOISE AIR TERMINAL /GOWEN FLD/ |
| Event Location Nearest Airport ID | BOI |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 3 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 2871 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 436 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 280 |
| Weather Observation Facility ID | BOI |
| Elevation of weather observation facility | 2871 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 600 |
| Lowest Non-Ceiling Height | 100 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 0.25 |
| Air Temperature at event time (in degrees celsius) | 2 |
| Dew Point at event time (in degress fahrenheit) | 2 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30.03 |
| 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 | 1 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 18375 |
| NTSB Notification Source | FAA-ROC |
| NTSB Notification Date | Nov 9 2004 12:00AM |
| NTSB Notification Time | 741 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Sep 13 2005 12:54PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | Boise, Idaho |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N162WA |
| NTSB Number | SEA05LA014 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Swearingen |
| Aircraft Model | SA226TC |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | TL-418 |
| Certified Max Gross Weight | 13230 |
| 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 | 5 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Western Airlines |
| Aircraft Owner Street Address | 3669 West Wright Street |
| Aircraft Owner City | Boise |
| Aircraft Owner State | ID |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 83705 |
| Operator is an individual? | No |
| Operator Name | Transportation Syatems Inc |
| Operator Same as Owner? | No |
| 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 | QTVA |
| Owner has at least one certificate | -- |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | SLC |
| Departure City | SALT LAKE CITY |
| Departure State | UT |
| Departure Country | USA |
| Departure Time | 310 |
| Departure Time Zone | MST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | BOI |
| Destination City | Boise |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | Approach - final approach fix (FAF)/outer marker to threshold (IFR) |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Jun 28 2005 2:13PM |
| User who most recently changed record | STAM |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 10R |
| Runway Length | 9763 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |