Aircraft Accident/Incident Report

Elko, Nevada 89801
Thursday, May 12, 2005 14:16 PDT

NTSB Narrative Summary Released at Completion of Accident

The airplane collided with mountainous terrain at the 10,500-foot level while in cruise. The pilot was receiving VFR flight advisories when radar and radio contact were lost. According to a pilot flying in the area, about 1416, nearby air traffic control tower personnel contacted him, and requested he investigate an emergency locator transmitter (ELT) signal in the area. The pilot noted low clouds with bases between 8,500 to 9,000 feet msl were in the area of the strongest ELT signal reception, and that there was no rain or snow showers in the area. The mountain tops were obscured, but there were good VFR conditions under the clouds. He was not able to locate the wreckage on his first attempt due to the clouds, but did on his second try later in the afternoon. The accident site was on a 45-degree, snow-covered slope. Recorded radar data for the last 2 minutes of the flight showed that the airplane's mode C altitudes varied between 10,000 feet and 10,300 feet. The terrain elevation in the area ranged from 6,750 feet to 10,500 feet msl. The last recorded radar return was at 1416:44, at a mode C reported altitude of 10,300 feet. Weather analysis indicated that the pilot was likely in visual meteorological conditions until just prior to the accident. An overcast cloud band was on the windward side of a mountain range at the accident time, and that terrain was mostly obscured above 8,500-9,000 feet msl. Cloud tops were about 13,000 feet msl. Scattered light snow showers were likely in the accident area. The examination of the airplane and both engine's revealed no preimpact anomalies that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's continued VFR cruise flight into instrument meteorological conditions in mountainous terrain, and his failure to maintain clearance from terrain. A contributing factor was mountain obscuration and clouds.

Event Information

Type of Event Accident
Event Date 5/12/2005
Event Day of the Week Thursday
Time of Event 1416
Event Time Zone Pacific Daylight Time
Event City Elko
Event State NEVADA
Event Country --
Zipcode of the event site 89801
Event Date Year 2005
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 403300N
Event Location Longitude 1152300W
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 --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1256 Pacific Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID EKO
Elevation of weather observation facility 5140
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 5500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) 4
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 19
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 22045
NTSB Notification Source FAA
NTSB Notification Date May 12 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 14 2007 2:53PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-RNO-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N8771R
NTSB Number LAX05FA167
Missing Aircraft Indicator Y
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Beech
Aircraft Model 95-B55
Aircraft Series Identifier --
Aircraft Serial Number TC-1793
Certified Max Gross Weight 5100
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 1 2004 12:00AM
Airframe hours since last inspection --
Airframe Hours 1609
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type --
Aircraft Owner Name LAM Aviation, Inc.
Aircraft Owner Street Address --
Aircraft Owner City Los Altos Hills
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 94024
Operator is an individual? No
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? --
Certified for Part 133 or 137 Operation --
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 Yes
Departure Point Same as Event No
Departure Airport Code TRK
Departure City Truckee
Departure State CA
Departure Country USA
Departure Time 1300
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code U42
Destination City Salt Lake City
Destination State UT
Destination Country USA
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 30 2007 12:19PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --