Alturas Airport
Aircraft Accident/Incident Report

Alturas, California 96101
Tuesady, June 1, 2010 19:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The certified flight instructor (CFI) and a student pilot were performing touch-and-go and full stop landings. The CFI reported that during the final landing roll at 30 miles per hour, the wing rolled severely to the left, and struck the ground. The wing crumpled, and dug into the surface rolling the airplane onto its left side. Postaccident examination revealed that the right rear mast support cable fractured about 3 inches above its lower attachment point where the cable enters a swedge. A Federal Aviation Administration inspector examined the wreckage and confirmed the break to the cable and also noted that there appeared to be some bluish green corrosion on the copper compression swedge.

NTSB Probable Cause Narrative

Fracture of a mast support cable due to corrosion, which resulted in a loss of control during the landing roll.

Event Information

Type of Event Accident
Event Date 6/1/2010
Event Day of the Week Tuesday
Time of Event 1900
Event Time Zone Pacific Daylight Time
Event City Alturas
Event State CALIFORNIA
Event Country --
Zipcode of the event site 96101
Event Date Year 2010
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 412859N
Event Location Longitude 1203355W
Event Location Airport Alturas
Event Location Nearest Airport ID AAT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 4377
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1855 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KAAT
Elevation of weather observation facility 4378
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 7000
Lowest Non-Ceiling Height 5500
Sky/Lowest/Cloud Conditions Few
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 15
Dew Point at event time (in degress fahrenheit) 8
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.01
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 28426
NTSB Notification Source CFI Hendrix
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jul 6 2011 1:12PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N354MB
NTSB Number WPR10LA275
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 Airborne Windsports PTY LTD
Aircraft Model Edge X
Aircraft Series Identifier --
Aircraft Serial Number 582-912
Certified Max Gross Weight 884
Aircraft Category --
Aircraft Registration Class --
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 Annual
Date of Last Inspection Nov 27 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 188
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Thomas Parnow
Aircraft Owner Street Address --
Aircraft Owner City Alturas
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 96101
Operator is an individual? No
Operator Name Thomas Parnow
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Alturas
Operator State CA
Operator Country USA
Operator Zip code 96101
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 Yes
Departure Point Same as Event Yes
Departure Airport Code AAT
Departure City Alturas
Departure State CA
Departure Country USA
Departure Time 1800
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code AAT
Destination City Alturas
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 12 2011 6:08PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 31
Runway Length 4377
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --