Individually Owned: 150,657
Corporate Owned: 137,281
Butterfield Oaks Airport
Aircraft Accident/Incident Report
Warner Springs, California 92086
Sunday, April 29, 1984 13:40 PDT
NTSB Narrative Summary Released at Completion of Accident
THE SAILPLANE WAS FOUND IN A NOSE DOWN ATTITUDE AMOUNG 10 TO 15 FOOT RIBBON-WOOD SHRUBS APPROX 250 FT WNW OF THE DEPARTURE END OF A SMALL AIRSTRIP. BOTH WINGS WERE FOUND DISPLACED FORWARD WITH THE RT ONE FORMING A STRAIGHT LINE EXTENSION FORWARD FM THE FUSELAGE. NO WITNESSES WERE FOUND THAT OBSERVED THE ACCIDENT. THE PLT HAD BEEN ATTEMPTING A 5 HOUR DURATION FLT WITH THE POSSIBILITY OF FLYING OUR 300 MILES TO QUALIFY FOR A DISTANCE AWARD. TRANSMISSIONS TO THE CO-OWNER ON THE GROUND INDICATED HE WAS HAVING TROUBLE MAINTAINING ALT AND HIS ORTENTATION TO HIS PLANNED COURSE. HIS LAST TRANSMISSION STATED THAT HE HAD BEEN MISTAKEN ABOUT HIS PRIOR LOCATION AND THAT HE HAD TO DUMP HIS BALLAST. A BAROGRAPH WAS FOUND IN THE ACFT WHICH INDICATED OUR 2 HOURS OF FLT TIME WITH AT LEAST 2 LOSSES OF ALT BFR THE FINAL DECREASE. IN ADDITION THE LAST ALT DECREASE WAS PRECEEDED BY A SLIGHT INCREASE IN ALT FOLLOWED BY WHAT APPEARS TO BE A RAPID DECREASE.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 4/29/1984 |
| Event Day of the Week | Sunday |
| Time of Event | 1340 |
| Event Time Zone | Pacific Daylight Time |
| Event City | WARNER SPRINGS |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 92086 |
| Event Date Year | 1984 |
| Event Date Month | 4 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | BUTTERFIELD OAKS |
| Event Location Nearest Airport ID | 3L5 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | 300 |
| Airport Elevation | 3100 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Unknown |
| Time of the weather observation | 1346 Pacific Standard Time |
| Direction of event from weather observation facility (degrees) | 225 |
| Weather Observation Facility ID | CFO |
| Elevation of weather observation facility | 328 |
| Distance of event from weather observation facility (units?) | 30 |
| Time Zone of the weather observation | PST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 25000 |
| 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) | 12 |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 120 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 12 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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 | 1 |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 3147 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 27119 |
| Date of most recent change to record | Jan 2 2001 9:15AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N811 |
| NTSB Number | LAX84FA275 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | -- |
| Damage | Destroyed |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Rolladen-Schneider |
| Aircraft Model | LS3 |
| Aircraft Series Identifier | LS3 |
| Aircraft Serial Number | 3051 |
| Certified Max Gross Weight | 825 |
| Aircraft Category | Glider |
| 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 | 1 |
| Number of Engines | 0 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Mar 18 1984 12:00AM |
| Airframe hours since last inspection | 17 |
| Airframe Hours | 480 |
| ELT Installed | No |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | PATRICK W. PHILBRICK |
| Aircraft Owner Street Address | 23791 VIA LA CORONA |
| Aircraft Owner City | MISSION VIEJO |
| Aircraft Owner State | CA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 92691 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | Yes |
| 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 | |
| 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 | -- |
| Indicates Domestic or International Flight | -- |
| Operator carrying Pax/Cargo/Mail | -- |
| Type of Flying (Per_Bus / Primary) | Personal |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | HMT |
| Departure City | HEMET |
| Departure State | CA |
| Departure Country | |
| Departure Time | 1130 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | HMT |
| Destination City | HEMT |
| Destination State | CA |
| Destination Country | |
| Specific Phase of Flight | Descent |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 10 |
| Runway Length | 2400 |
| Runway Width | 50 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |