Individually Owned: 150,657
Corporate Owned: 137,281
Boise Air Terminal Airport
Aircraft Accident/Incident Report
Boise, Idaho 83807
Saturday, August 13, 1983 18:34 MDT
NTSB Narrative Summary Released at Completion of Accident
THE ACFT LANDED IN A NEAR MAXIMUM VELOCITY CROSSWIND AND WHILE BRAKING TO CONTROL/CORRECT A SWERVE, THE RIGHT MAIN LANDING GEAR SEPARATED FROM THE ACFT. THE LANDING WAS ON RWY 28R AND THE WIND WAS FROM 200 DEGREES AT 10 TO 14 KTS ON FINAL AND 12 KTS WHEN THE PILOT WAS OVER THE THRESHOLD. THE ACFT TOUCHED DOWN ON THE LEFT WHEEL AND BOUNCED A LITTLE. ITTOUCHED DOWN AGAIN ON THE LEFT GEAR AND THE PILOT RAISED THE TAIL. THE RIGHT MAIN CAME DOWN WITH THE TAIL STILL IN THE AIR. AT ABOUT 4O MPH THE TAIL WAS LOWERED AND THE ACFT STARTED A LEFT TURN. THE PILOT CORRECTED WITH FULL RUDDER AND RIGHT BRAKING. THE PILOT DETECTED A SINKING ON THE RIGHT SIDE AND THEN THE RIGHT STRUT COLLAPSED. WHEN HE DEPLANED THE PILOT DISCOVERED THE RIGHT GEAR HAD SEPARATED. THE MAXIMUM DEMONSTRATED CROSSWIND VELOCITY FOR THIS AIRCRAFT (CESSNA 185) IS 15 KTS. METALLURGICAL TESTS WERE PERFORMED ON THE RIGHT WHEEL SPINDLE ATTACHING NUTS AND BOLTS WHICH SHOWED THAT THE REAR BOLTS FAILED AT THE INTERFACE OF SPINDLE AND STRUT DUE TO TENSILE OVERLOAD.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 8/13/1983 |
| Event Day of the Week | Saturday |
| Time of Event | 1834 |
| Event Time Zone | Mountain Daylight Time |
| Event City | BOISE |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83807 |
| Event Date Year | 1983 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | BOISE AIR TERMINAL |
| Event Location Nearest Airport ID | BOI |
| 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 | 2858 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1850 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | BOI |
| Elevation of weather observation facility | 2858 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 14000 |
| Lowest Non-Ceiling Height | 6000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 20 |
| Air Temperature at event time (in degrees celsius) | 28 |
| Dew Point at event time (in degress fahrenheit) | 9 |
| Wind Direction (degrees magnetic) | 200 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 15 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| Density Altitude (feet) | 4800 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1599 |
| NTSB Notification Source | -- |
| NTSB Notification Date | -- |
| NTSB Notification Time | 0 |
| Fiche Number and/or location -used to find docket information | 21934 |
| Date of most recent change to record | Jan 2 2001 9:15AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N4772Q |
| NTSB Number | SEA83LA177 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| Type of Flight Plan filed | Company VFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | CESSNA |
| Aircraft Model | 185E |
| Aircraft Series Identifier | 185E |
| Aircraft Serial Number | 185-1239 |
| 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 | 6 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | 100 Hour |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | MOUNTAIN BIRD, INCORPORATED |
| Aircraft Owner Street Address | SALMON AIRPORT, P.O. BOX 698 |
| Aircraft Owner City | SALMON |
| Aircraft Owner State | ID |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | |
| Operator is an individual? | -- |
| Operator Name | SALMON AIR TAXI |
| Operator Same as Owner? | No |
| 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 | Yes - certificate holder |
| 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 | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | No |
| Departure Point Same as Event | No |
| Departure Airport Code | MYL |
| Departure City | MCCALL |
| Departure State | ID |
| Departure Country | |
| Departure Time | 1745 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | BOI |
| Destination City | BOISE |
| Destination State | ID |
| Destination Country | |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 2 2001 10:36AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 28R |
| Runway Length | 7400 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |