Furnace Creek Airport
Aircraft Accident/Incident Report

Furnace Creek, California 92328
Saturday, January 29, 2011 PST

NTSB Narrative Summary Released at Completion of Accident

A witness reported observing the airplane take off to the south and stated that the ground operations and takeoff appeared to be normal. The wreckage was located 2 days later on a flat, dry salt lake bed 7 miles south of the departure airport. The surface of the ground was deep jagged salt deposits, with crevasses between 6 and 18 inches deep, and unsuitable for making a successful off-field landing. During the postaccident engine examination, the single-drive dual magneto was found mounted on the accessory pad and could be easily rotated by hand. The magneto had sustained no apparent impact damage and remained in good condition externally. Further examination of the attachment hardware found all required mounting studs, lock washers, and respective nuts to be in place and undamaged. The magneto clamps, respective magneto flange, and the accessory case interface areas exhibited wear signatures consistent with fretting, which suggested that the clamps were not securely fastened. These signatures were most prominent on the lower clamps and flange area. The magneto flange remained intact and revealed no evidence of cracking. It is likely that this could have produced a partial power loss, which led to the pilot’s decision to make an off-airport landing. No other mechanical failures or malfunctions were found that would have precluded normal operation. The airplane had accumulated about 10 hours since the last annual inspection. No maintenance records were located to determine if further maintenance had been performed on the engine since the inspection 5 months prior to the accident.

NTSB Probable Cause Narrative

The magneto clamps were not securely fastened to the mount, which led to a partial loss of engine power and a subsequent forced landing on unsuitable terrain.

Event Information

Type of Event Accident
Event Date 1/29/2011
Event Day of the Week Saturday
Time of Event 0
Event Time Zone Pacific Standard Time
Event City Furnace Creek
Event State CALIFORNIA
Event Country --
Zipcode of the event site 92328
Event Date Year 2011
Event Date Month 1
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 362150N
Event Location Longitude 1165158W
Event Location Airport Furnace Creek Airport
Event Location Nearest Airport ID L06
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 7
Degrees magnetic from airport --
Airport Elevation -210
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1455 Pacific Standard Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID DRA
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) 42
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.97
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 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 30360
NTSB Notification Source National Park Service
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 29 2012 2:15PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N50BJ
NTSB Number WPR11FA114
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name MOONEY
Aircraft Model M20J
Aircraft Series Identifier --
Aircraft Serial Number 24-0657
Certified Max Gross Weight 3374
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 --
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Aug 11 2010 12:00AM
Airframe hours since last inspection 10
Airframe Hours 1713
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Bruce Jackson
Aircraft Owner Street Address --
Aircraft Owner City Culver City
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 90230
Operator is an individual? Yes
Operator Name Bruce Jackson
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Culver City
Operator State CA
Operator Country USA
Operator Zip code 90230
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 No
Departure Point Same as Event No
Departure Airport Code L06
Departure City Furnace Creek
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone PST
Destination Same as Local Flt --
Destination Airport Code SMO
Destination City Santa Monica
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 29 2012 2:16PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --