Individually Owned: 150,657
Corporate Owned: 137,281
San Loui Obispo Airport
Aircraft Accident/Incident Report
San Luis Obispo, California 33403
Friday, August 24, 1984 11:18 PDT
NTSB Narrative Summary Released at Completion of Accident
AT ABOUT 1118, A BEECH C-99 (WINGS WEST FLT 628), N6399U, & A ROCKWELL 112TC, N112SM, COLLIDED IN MIDAIR ABOUT 8 MI WEST-NORTHWEST OF THE SAN LOUI OBISPO COUNTY ARPT. THE ROCKWELL 112TC HAD DEPARTED PASO ROBLES, CA & WAS DESCENDING TOWARD THE SAN LOUI OBISPO COUNTY ARPT. THE BEECH C-99 HAD DEPARTED SAN LOUI OBISPO & WAS CLIMBING ON A FLT TO SAN FRANCISCO. THEY COLLIDED HEAD-ON AT ABOUT 3400 FT MSL IN CLEAR WX. THE C-99 CREW HAD JUST CONTACTED LOS ANGELES ARTCC. AT THAT TIME, THE AIRCREWS OF BOTH ACFT WERE GOVERNED BY THE 'SEE-AND-AVOID' CONCEPT WITH REGARD TO EACH OTHER. AN INVESTIGATION REVEALED THAT THE STANDARD DEPARTURE & INSTRUMENT APCH PROCEDURES SHARED A COMMON TRACK. THE C-99 WAS DEPARTING ALONG THE DEPARTURE TRACK. JUST PRIOR TO THE COLLISION, THE 112TC CREW HAD CONTACTED UNICOM & REPORTED AT THE DOBRA INTERSECTION WHICH WAS ON THE ILS APCH COURSE. AFTER COLLIDING, BOTH ACFT CRASHED ON OPEN TERRAIN & BURNED. THE CONTROLLER HAD ONLY SECONDS TO APPRAISE RADAR DATA & ISSUE A SAFETY ADVISORY. WINGS WEST REQD 1 RADIO ON COMPANY FREQ.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 8/24/1984 |
| Event Day of the Week | Friday |
| Time of Event | 1118 |
| Event Time Zone | Pacific Daylight Time |
| Event City | SAN LUIS OBISPO |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 33403 |
| Event Date Year | 1984 |
| Event Date Month | 8 |
| MidAir Collision Indicator | Yes |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | SAN LOUI OBISPO |
| Event Location Nearest Airport ID | SBP |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 8 |
| Degrees magnetic from airport | 310 |
| Airport Elevation | 0 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Unknown |
| Time of the weather observation | 0 |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | |
| Elevation of weather observation facility | 0 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | |
| 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) | 15 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | -18 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | 0 |
| 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 | 17 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 17 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1716 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Aug 24 1984 12:00AM |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 25365 |
| Date of most recent change to record | Dec 18 2002 11:28AM |
| User who most recently changed record | NTSB\GIUV |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
||
|---|---|---|
Aircraft #1 |
Aircraft #2 |
|
| Aircraft Registration Number | N6399U | N112SM |
| NTSB Number | DCA84AA034A | DCA84AA034B |
| Missing Aircraft Indicator | N | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter | Part 91: General Aviation |
| Type of Flight Plan filed | IFR | None |
| Flight plan Was Activated? | -- | -- |
| Damage | Destroyed | Destroyed |
| Aircraft Fire | Ground | Ground |
| Aircraft Explosion | Ground | Ground |
| Aircraft Manufacturer's Full Name | BEECH | Rockwell |
| Aircraft Model | C-99 | 112TC |
| Aircraft Series Identifier | C-99 | 112TC |
| Aircraft Serial Number | U-187 | 13020 |
| Certified Max Gross Weight | 11300 | 2850 |
| Aircraft Category | Airplane | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil | U.S. Registered/U.S. Soil |
| Aircraft is a homebuilt? | No | No |
| Flight Crew Seats | -- | -- |
| Cabin Crew Seats | -- | -- |
| Passenger Seats | -- | -- |
| Total number of seats on the aircraft | 17 | 4 |
| Number of Engines | 2 | 1 |
| Fixed gear or retractable gear | Retractable | Retractable |
| Aircraft, Type of Last Inspection | Unknown | Unknown |
| Date of Last Inspection | -- | -- |
| Airframe hours since last inspection | 0 | 0 |
| Airframe Hours | -- | -- |
| ELT Installed | Unknown | Unknown |
| ELT Activated | Unknown | Unknown |
| ELT Aided Location of Event Site | Unknown | Unknown |
| ELT Type | -- | -- |
| Aircraft Owner Name | CAPITAL EQUIPMENT CO. | AESTHETECH CORP. |
| Aircraft Owner Street Address | 634 AIRPORT RD. | |
| Aircraft Owner City | PASO ROBLES | |
| Aircraft Owner State | CA | |
| Aircraft Owner Country | ||
| Aircraft Owner Zipcode | 93447 | |
| Operator is an individual? | -- | -- |
| Operator Name | WINGS WEST AIRLINES, INC. | |
| Operator Same as Owner? | No | Yes |
| Operator Is Doing Business As | -- | -- |
| Operator Address Same as Owner? | Yes | Yes |
| Operator Street Address | ||
| Operator City | ||
| Operator State | ||
| Operator Country | ||
| Operator Zip code | ||
| Operator Code | ||
| Owner has at least one certificate | Yes - certificate holder | None |
| Other Operator of large aircraft? | No | No |
| Certified for Part 133 or 137 Operation | Unknown | Unknown |
| Operator Certificate Number | -- | -- |
| Indicates whether an air carrier operation was scheduled or not | Scheduled | -- |
| Indicates Domestic or International Flight | Domestic | -- |
| Operator carrying Pax/Cargo/Mail | Passenger Only | -- |
| Type of Flying (Per_Bus / Primary) | Unknown | Instructional |
| Second Pilot on Board | Yes | Yes |
| Departure Point Same as Event | No | No |
| Departure Airport Code | ||
| Departure City | SAN LUIS OBISPO | PASO ROBLES |
| Departure State | CA | CA |
| Departure Country | ||
| Departure Time | 0 | 0 |
| Departure Time Zone | ||
| Destination Same as Local Flt | -- | dest & departure same, accident can occur anywhere |
| Destination Airport Code | ||
| Destination City | SAN FRANCISCO | |
| Destination State | CA | |
| Destination Country | ||
| Specific Phase of Flight | Climb | Descent |
| Report sent to ICAO? | -- | -- |
| Evacuation occurred | -- | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo | dbo |
| Since inspection or accident | -- | -- |
| Event Location Runway Number and Location | 0 | 0 |
| Runway Length | 0 | 0 |
| Runway Width | 0 | 0 |
| Sight Seeing flight | No | No |
| Air Medical Flight | No | No |
| Medical Flight | -- | -- |