Individually Owned: 150,657
Corporate Owned: 137,281
Big Bear City Airport
Aircraft Accident/Incident Report
Big Bear City, California 92314
Saturday, July 15, 1995 12:35 PDT
NTSB Narrative Summary Released at Completion of Accident
ABOUT 300 FEET INTO THE INITIAL CLIMB, THE PILOT NOTED THE ENGINE RPM HAD DECREASED AND THE RATE OF CLIMB WAS ZERO. HE INITIATED A LEFT TURN BACK TOWARD THE RUNWAY, BUT NOTED HE WAS LOSING BOTH AIRSPEED AND ALTITUDE. HE LOWERED ONE NOTCH OF FLAPS TO MAINTAIN ALTITUDE, BUT THE AIRPLANE CONTINUED TO DESCEND. WITH AIRSPEED STILL DECREASING, THE AIRPLANE COLLIDED WITH TERRAIN SHORT OF THE RUNWAY. THE ESTIMATED DENSITY WAS 8,700 FEET. ACCORDING TO THE MANUFACTURER, MAXIMUM POWER AVAILABLE AT THAT DENSITY ALTITUDE WOULD HAVE BEEN BETWEEN 65 AND 70 PERCENT, OR NO MORE THAN 2,315 RPM AT CRUISE. NO DISCREPANCIES WERE NOTED DURING AN EXAMINATION OF THE AIRPLANE AND A POST-ACCIDENT RUNUP OF THE ENGINE.
NTSB Probable Cause Narrative
THE PILOT'S IMPROPER PLANNING/DECISION AND FAILURE TO OBTAIN OR MAINTAIN ADEQUATE AIRSPEED DURING TAKEOFF. A FACTOR RELATING TO THE ACCIDENT WAS: THE HIGH DENSITY ALTITUDE.
Event Information
| Type of Event | Accident |
| Event Date | 7/15/1995 |
| Event Day of the Week | Saturday |
| Time of Event | 1235 |
| Event Time Zone | Pacific Daylight Time |
| Event City | BIG BEAR CITY |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 92314 |
| Event Date Year | 1995 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | BIG BEAR CITY |
| Event Location Nearest Airport ID | L35 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | 80 |
| Airport Elevation | 6748 |
| Weather Briefing Completeness | Partial - limited by briefer |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1155 Pacific Daylight Time |
| Direction of event from weather observation facility (degrees) | 80 |
| Weather Observation Facility ID | L35 |
| Elevation of weather observation facility | 6748 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | PDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 7500 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Overcast |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 24 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | 50 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 8900 |
| Intensity of Precipitation | Light |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | 0 |
| On Ground, Minor Injuries | 0 |
| On Ground, Serious Injuries | 0 |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1317 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jul 15 1995 12:00AM |
| NTSB Notification Time | 1330 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 7 2000 4:25PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8742N |
| NTSB Number | LAX95LA254 |
| 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 | PIPER |
| Aircraft Model | PA-28-140 |
| Aircraft Series Identifier | PA-28-140 |
| Aircraft Serial Number | 28-25557 |
| Certified Max Gross Weight | 2150 |
| 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 | 2 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | Apr 30 1995 12:00AM |
| Airframe hours since last inspection | 101 |
| Airframe Hours | 4000 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | JOHN RO YOON |
| Aircraft Owner Street Address | 5550 BLUEBROOK LANE |
| Aircraft Owner City | YORBA LINDA |
| Aircraft Owner State | CA |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 92687 |
| Operator is an individual? | -- |
| Operator Name | |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1903 #B AVIATION DRIVE |
| Operator City | CORONA |
| Operator State | CA |
| Operator Country | |
| Operator Zip code | 91720 |
| 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 | -- |
| 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 | Yes |
| Departure Airport Code | L35 |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 1225 |
| Departure Time Zone | PDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | L66 |
| Destination City | CORONA |
| Destination State | CA |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:34AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 8 |
| Runway Length | 5850 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |