Aircraft Accident/Incident Report

Bear Valley, California 95223
Thursday, September 2, 1999 12:12 PDT

NTSB Narrative Summary Released at Completion of Accident

About noon, during a cross-country flight under benign visual meteorological conditions, the pilot lost control of her airplane. It entered an uncontrolled descent and impacted 9,200-foot mean sea level terrain in a nearly vertical nose down attitude. The wreckage was not located for several days. The pilot had about 1,700 total hours of flight time, of which about 1,600 hours were in the accident model of airplane. She was a current pilot. The airplane was not equipped with an autopilot or any wing-leveling device. There were no en route communications between the pilot and any FAA facility. No evidence of any mechanical malfunction with the airframe or engine was noted during the on-scene wreckage examination. The continuity of the airplane's flight control system was confirmed. Three witnesses who observed the pilot prior to departure indicated that she did not appear physically well. One of the witnesses stated the pilot had a 'flushed' look on her face and bags under her eyes. The second witness reported that the pilot 'did not look normal.' The third witness stated that the pilot 'did not look well.' The toxicological examination revealed the presence of a readily available over-the-counter decongestant in body tissue; however, no blood level for the drug was ascertained. The drug's involvement remains undetermined.

NTSB Probable Cause Narrative

The pilot's in-flight loss of control for undetermined reasons.

Event Information

Type of Event Accident
Event Date 9/2/1999
Event Day of the Week Thursday
Time of Event 1212
Event Time Zone Pacific Daylight Time
Event City BEAR VALLEY
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95223
Event Date Year 1999
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude --
Event Location Longitude --
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1147 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 327
Weather Observation Facility ID TVL
Elevation of weather observation facility 6264
Distance of event from weather observation facility (units?) 27
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 8000
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) 7
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Unknown
Wind Speed (knots) 8
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) 1841
NTSB Notification Source --
NTSB Notification Date Sep 3 1999 12:00AM
NTSB Notification Time 1000
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Mar 21 2001 4:04AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6831U
NTSB Number LAX99FA294
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 Mooney
Aircraft Model M20D
Aircraft Series Identifier M20D
Aircraft Serial Number 190
Certified Max Gross Weight 2575
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 4
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Dec 1 1998 12:00AM
Airframe hours since last inspection 26
Airframe Hours 2388
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name LUCILLE R. KERNS
Aircraft Owner Street Address 4643 TRAIL STREET
Aircraft Owner City NORCO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 91760
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 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 No
Departure Airport Code AJO
Departure City CORONA
Departure State CA
Departure Country
Departure Time 945
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code FLX
Destination City FALLON
Destination State NV
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 21 2001 4:04AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --