Big Sky Airport
Aircraft Accident/Incident Report

Ennis, Montana 59729
Friday, August 19, 1988 16:30 MDT

NTSB Narrative Summary Released at Completion of Accident

WHILE ON A LANDING ROLLOUT, THE LEFT MAIN GEAR STRUT FAILED & SEPARATED FROM THE ACFT. THE PLT SAID HE HELD THE ACFT STRAIGHT FOR ABOUT 600 FT, THEN IT VEERED TO THE LEFT & WENT OFF THE RWY. SUBSEQUENTLY, THE LEFT WING & LEFT HORIZONTAL STABILIZER WERE DAMAGED. METALLURGICAL EXAM OF THE STRUT REVEALED THE STRUT HAD FAILED IN AN AREA THAT HAD BEEN REPAIRED AFTER PREVIOUS DAMAGE. THE PREVIOUS DAMAGE HAD THE APPEARANCE OF BEING CAUSED BY ELECTRICAL ARCING. THE STRUT SURFACE HAD BEEN REWORKED & REPAINTED. CRACKS WERE FOUND WITH ORIGINS IN THE BRITTLE, REHARDENED AREA OF THE STRUT. NO ENTRY WAS FOUND IN THE ACFT LOGBOOK OR MAINTENANCE RECORDS CONCERNING SUCH REPAIR OF THE LANDING GEAR STRUT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 8/19/1988
Event Day of the Week Friday
Time of Event 1630
Event Time Zone Mountain Daylight Time
Event City ENNIS
Event State MONTANA
Event Country --
Zipcode of the event site 59729
Event Date Year 1988
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport BIG SKY
Event Location Nearest Airport ID 5U3
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 5360
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 100
Air Temperature at event time (in degrees celsius) 27
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
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 4
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2218
NTSB Notification Source --
NTSB Notification Date Aug 22 1988 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information 38882
Date of most recent change to record Dec 13 2000 12:03PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6132R
NTSB Number DEN88LA188
Missing Aircraft Indicator N
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 CESSNA
Aircraft Model T210F
Aircraft Series Identifier T210F
Aircraft Serial Number T210-0032
Certified Max Gross Weight 3300
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 Aug 19 1988 12:00AM
Airframe hours since last inspection 5
Airframe Hours 3850
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PIERRE SAINT-AMAND
Aircraft Owner Street Address 1748 LAS FLORES
Aircraft Owner City RIDGECREST
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 93555
Operator is an individual? --
Operator Name ST AMAND, PIERRE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1748 LAS FLORES
Operator City RIDGECREST
Operator State CA
Operator Country
Operator Zip code 93555
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 FAT
Departure City FRESNO
Departure State CA
Departure Country
Departure Time 1130
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code 5U3
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 18
Runway Length 5200
Runway Width 125
Sight Seeing flight No
Air Medical Flight No
Medical Flight --