Beechcraft C-99 N6399U
24 August 1984 · San Luis Obispo, California, United States · Fatal
Summary
On 24 August 1984 at about 18:18 local time, a Beechcraft C-99 registered N6399U, operated by Wings West Airlines, Inc., was involved in an accident near San Luis Obispo, California, United States. 17 people were on board and 17 died. The aircraft was destroyed. No probable cause statement is available for this record.
The record
- Date
- at 18:18
- Classification
- Accident
- Location
- San Luis Obispo, California, United States
- Nearest airport
- San Loui Obispo (SBP)
- Coordinates
- 35.2786, -120.6610
- Aircraft
- Beechcraft C-99
- Registration
- N6399U
- Category
- Airplane
- Engines
- 2
- Operator
- Wings West Airlines, Inc.
- Operating rule
- Part 135: Air Taxi & Commuter
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- San Luis Obispo → San Francisco
- Aircraft damage
- Destroyed
- Weather
- VMC
- Light
- Day
- NTSB number
- DCA84AA034
People
17 people died.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 17 | 17 | 0 | 0 | 0 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
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.
Quoted verbatim from the NTSB record.
Aircraft involved
| Aircraft | Registration | Operator | Damage |
|---|---|---|---|
| Beechcraft C-99 C-99 | N6399U | Wings West Airlines, Inc. | Destroyed |
| Rockwell 112TC 112TC | N112SM | - | Destroyed |
Other Beechcraft C-99 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 20 Jan 1983 | Beechcraft C-99 | San Francisco, California, United States | Wings West Airlines, Inc. | Fatal | - |
| 28 Aug 1985 | Beechcraft C-99 | Conover, North Carolina, United States | Sunbird Airline, Inc. | Fatal | 3 |
| 18 Dec 1986 | Beechcraft C-99 | Albuquerque, New Mexico, United States | Mesa Air Shuttle | No injuries | - |
| 4 Feb 1988 | Beechcraft C-99 | Orlando, Florida, United States | - | No injuries | - |
| 25 Feb 1993 | Beechcraft C-99 | Seattle, Washington, United States | Ameriflight, Inc. | No injuries | - |
| 16 Nov 1994 | Beechcraft C-99 | Avenal, California, United States | Ameriflight, Inc. | Fatal | 1 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 28 Jan 1984 | Cessna 401A | San Francisco, California, United States | - | No injuries | - |
| 4 Aug 1984 | Eipper QUICKSILVER MX | Thousand Oaks, California, United States | - | Serious injuries | - |
| 5 Feb 1984 | Hughes 500C (369HS) | San Diego, California, United States | - | Serious injuries | - |
| 5 Feb 1984 | Cessna 180J | Hayward, California, United States | - | Serious injuries | - |
| 14 Jul 1984 | Piper PA-31T | Concord, California, United States | - | Fatal | 6 |
| 5 Feb 1984 | Cessna 150M | Fremont, California, United States | Fremont Flying Service | No injuries | - |