Individually Owned: 150,657
Corporate Owned: 137,281
John Wayne Airport
Aircraft Accident/Incident Report
Santa Ana, California 92705
Wednesday, December 15, 1993 17:33 PST
NTSB Narrative Summary Released at Completion of Accident
A BEECH LINER, BOEING 757 & ISRAEL WESTWIND (WW) WERE VECTORED FOR LANDINGS ON RWY 19R. THE 757 & WW WERE SEQUENCED FOR VISUAL APCHS BEHIND THE BEECH. BEFORE BEING CLEARED FOR VISUAL APCH, THE WW WAS CLOSING 3.5 MI FROM THE 757 ON A CONVERGING COURSE. THE 757 & WW CREWS WERE TOLD TO SLOW TO 150 KTS. THE 757 SLOWED BELOW 150 KTS & WAS HIGH ON FINAL APPROACH WITH A 5.6 DEG DESCENT. THE WW CONTINUED TO CONVERGE TO ABOUT 2.1 MI BEHIND THE 757 ON A 3 DEG APCH. ATC DID NOT SPECIFICALLY ADVISE, AND WAS NOT REQUIRED BY ATC HANDBOOK TO ADVISE, THE WW PILOTS THAT THEY WERE BEHIND A BOEING 757. CAPT DISCUSSED POSSIBLE WAKE TURBULENCE, FLEW ILS 1 DOT HIGH, NOTED CLOSENESS TO THE 757 & INDICATED THERE SHOULD BE NO PROBLEM. WHILE DESCENDING THRU APRX 1100 FT MSL, THE WW ENCOUNTERED WAKE TURBULENCE FROM THE 757, ROLLED INTO A STEEP DESCENT & CRASHED. THE CREW LACKED SPECIFIC WAKE TURBULENCE TRAINING. CHLORPHENIRAMINE (COMMON OVER-THE-COUNTER ANTI-HISTAMINE; NOT APPROVED FOR FLYING) DETECTED IN PILOT'S LUNG TISSUE (0.094 UG/ML). (SEE SPCL STUDY NTSB/SIR-94/01)
NTSB Probable Cause Narrative
THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN ADEQUATE SEPARATION BEHIND THE BOEING 757 AND/OR REMAIN ABOVE ITS FLIGHT PATH DURING THE APPROACH, WHICH RESULTED IN AN ENCOUNTER WITH WAKE VORTICES FROM THE 757. FACTORS RELATED TO THE ACCIDENT WERE: AN INADEQUACY IN THE ATC PROCEDURE RELATED TO VISUAL APPROACHES AND VFR OPERATIONS BEHIND HEAVIER AIRPLANES, AND THE RESULTANT LACK OF INFORMATION TO THE WESTWIND PILOTS FOR THEM TO DETERMINE THE RELATIVE FLIGHT PATH OF THEIR AIRPLANE WITH RESPECT TO THE BOEING 757'S FLIGHT PATH.
Event Information
| Type of Event | Accident |
| Event Date | 12/15/1993 |
| Event Day of the Week | Wednesday |
| Time of Event | 1733 |
| Event Time Zone | Pacific Standard Time |
| Event City | SANTA ANA |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 92705 |
| Event Date Year | 1993 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | JOHN WAYNE |
| Event Location Nearest Airport ID | SNA |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 4 |
| Degrees magnetic from airport | 10 |
| Airport Elevation | 54 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1646 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 190 |
| Weather Observation Facility ID | SNA |
| Elevation of weather observation facility | 54 |
| Distance of event from weather observation facility (units?) | 4 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Night/Bright |
| 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) | 14 |
| Dew Point at event time (in degress fahrenheit) | 5 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 4 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| 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 | 5 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 5 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 71 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Dec 15 1993 12:00AM |
| NTSB Notification Time | 1800 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 11 2000 1:48PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N309CK |
| NTSB Number | LAX94FA073 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | Ground |
| Aircraft Explosion | Ground |
| Aircraft Manufacturer's Full Name | Israel Aircraft Industries |
| Aircraft Model | 1124A |
| Aircraft Series Identifier | 1124A |
| Aircraft Serial Number | 350 |
| Certified Max Gross Weight | 23000 |
| 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 | 12 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jun 10 1993 12:00AM |
| Airframe hours since last inspection | 95 |
| Airframe Hours | 3027 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | MANAGEMENT ACTIVITIES, INC. |
| Aircraft Owner Street Address | 638 ALAMITOS AVENUE |
| Aircraft Owner City | LONG BEACH |
| Aircraft Owner State | CA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 90802 |
| Operator is an individual? | -- |
| Operator Name | MARTIN AVIATION |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 19301 CAMPUS DRIVE |
| Operator City | SANTA ANA |
| Operator State | CA |
| Operator Country | |
| Operator Zip code | 92707 |
| Operator Code | MLQA |
| Owner has at least one certificate | Yes - certificate holder |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | POC |
| Departure City | LA VERNE |
| Departure State | CA |
| Departure Country | |
| Departure Time | 1725 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | SNA |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 19R |
| Runway Length | 5700 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |