Individually Owned: 150,657
Corporate Owned: 137,281
Billings Logan Intl. Airport
Aircraft Accident/Incident Report
Billings, Montana 59101
Friday, December 18, 1992 16:45 MST
NTSB Narrative Summary Released at Completion of Accident
DURING DESCENT INTO BILLINGS, THE CITATION WAS SEQUENCED BEHIND A BOEING 757, AND BOTH AIRPLANES WERE EVENTUALLY CLEARED FOR VISUAL APPROACHES. ABOUT 1-1/2 MI FROM THE RUNWAY THE CITATION WAS OBSERVED TO ROLL RAPIDLY TO THE INVERTED POSITION & DESCEND ALMOST VERTICALLY INTO THE GROUND. ACCORDING TO ATC TRANSCRIPTS AND THE AIRPLANES'S COCKPIT VOICE RECORDER, THE CREW OF THE CITATION HAD MAINTAINED VISUAL AWARENESS OF THE POSITION OF THE B-757 THROUGHOUT THE APPROACH. AT THE TIME OF THE UPSET, THE VERTICAL SEPARATION BETWEEN AIRPLANES WAS 600-1000 FT, AND THE HORIZONTAL SEPARATION WAS DECREASING BELOW 2.6 MI. ONE OF THE CITATION CAPTAIN'S LAST COMMENTS WAS 'ALMOST RAN OVER A SEVEN FIFTY SEVEN.' WINDS WERE 5 KTS.
NTSB Probable Cause Narrative
THE PILOT-IN-COMMAND'S FAILURE TO FOLLOW ESTABLISHED VORTEX AVOIDANCE PROCEDURES, AS PUBLISHED IN THE AIRMAN'S INFORMATION MANUAL, TO PROVIDE HIS OWN WAKE TURBULENCE SEPARATION.
Event Information
| Type of Event | Accident |
| Event Date | 12/18/1992 |
| Event Day of the Week | Friday |
| Time of Event | 1645 |
| Event Time Zone | Mountain Standard Time |
| Event City | BILLINGS |
| Event State | MONTANA |
| Event Country | -- |
| Zipcode of the event site | 59101 |
| Event Date Year | 1992 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | BILLINGS LOGAN INTL. |
| Event Location Nearest Airport ID | BIL |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 93 |
| Airport Elevation | 3649 |
| Weather Briefing Completeness | Partial - limited by pilot |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1653 Mountain Standard Time |
| Direction of event from weather observation facility (degrees) | 273 |
| Weather Observation Facility ID | BIL |
| Elevation of weather observation facility | 3649 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | MST |
| Lighting Conditions | Dusk |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 10000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 40 |
| Air Temperature at event time (in degrees celsius) | -17 |
| Dew Point at event time (in degress fahrenheit) | -15 |
| Wind Direction (degrees magnetic) | 350 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | Unknown |
| METAR weather report | -- |
| Event Highest Injury | Fatal |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | 8 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 8 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1032 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 18 1992 12:00AM |
| NTSB Notification Time | 1600 |
| Fiche Number and/or location -used to find docket information | 51009 |
| Date of most recent change to record | Dec 11 2000 3:30PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N6887Y |
| NTSB Number | SEA93GA041 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Public Use |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 550 |
| Aircraft Series Identifier | 550 |
| Aircraft Serial Number | 550-0293 |
| Certified Max Gross Weight | 13500 |
| 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 | 10 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Nov 6 1992 12:00AM |
| Airframe hours since last inspection | 45 |
| Airframe Hours | 5275 |
| ELT Installed | Yes |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | DEPARTMENT OF ENERGY (WAPA) |
| Aircraft Owner Street Address | 1627 COLE BLVD. |
| Aircraft Owner City | GOLDEN |
| Aircraft Owner State | CO |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 80401 |
| Operator is an individual? | -- |
| Operator Name | DEPARTMENT OF ENERGY (WAPA) |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 1627 COLE BLVD. |
| Operator City | GOLDEN |
| Operator State | CO |
| Operator Country | |
| Operator Zip code | 80401 |
| Operator Code | |
| Owner has at least one certificate | None |
| 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 | Unknown |
| Indicates Domestic or International Flight | Unknown |
| Operator carrying Pax/Cargo/Mail | Unknown |
| Type of Flying (Per_Bus / Primary) | Public Use |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | ATY |
| Departure City | WATERTOWN |
| Departure State | SD |
| Departure Country | |
| Departure Time | 1601 |
| Departure Time Zone | CST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Oct 22 2001 3:26PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 27R |
| Runway Length | 10528 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |