Individually Owned: 150,657
Corporate Owned: 137,281
Mineral County Memorial Airport
Aircraft Accident/Incident Report
Creede, Colorado 81130
Friday, June 25, 1999 13:17 MDT
NTSB Narrative Summary Released at Completion of Accident
The flight instructor said the airplane felt like it was being pushed down onto the runway. As power was added, the airplane touched down 'approximately 90 KIAS (a loss of 10 to 15 knots indicating a shear)' and there was a loud 'bang.' The airplane became airborne momentarily, then touched down again. The airplane departed the right side of the runway on its nose and left main landing gear. The owner-pilot receiving instruction said 'the bottom fell out and a moderately hard landing was made on the main gear. A pilot who witnessed the accident landed hard moments before. He said he had encountered a 'vertical wind shear.' He saw a large puff of blue gray smoke come out from beneath the right wing, followed by the tumbling right main gear. Metallurgical examination of the right scissors torque link disclosed multiple fractures and a crack in the upper link. The fractures were 'typical of fatigue cracking,' originating from 'multiple sites.' There was also corrosion pitting. Two other fracture sites were 'indicative of overstress.'
NTSB Probable Cause Narrative
Overload failure of the right main landing gear scissors torque link precipitated by preexisting fatigue fractures. A factor was wind shear.
Event Information
| Type of Event | Accident |
| Event Date | 6/25/1999 |
| Event Day of the Week | Friday |
| Time of Event | 1317 |
| Event Time Zone | Mountain Daylight Time |
| Event City | CREEDE |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 81130 |
| Event Date Year | 1999 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MINERAL COUNTY MEMORIAL |
| Event Location Nearest Airport ID | Q39 |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | 8680 |
| Weather Briefing Completeness | Full |
| 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 | 8000 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 30 |
| Air Temperature at event time (in degrees celsius) | 21 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Variable |
| Wind Speed (knots) | 5 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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 | 7 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1171 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Jun 25 1999 12:00AM |
| NTSB Notification Time | 1540 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jan 10 2001 9:57AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N221NC |
| NTSB Number | DEN99LA108 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Beech |
| Aircraft Model | B90 |
| Aircraft Series Identifier | B90 |
| Aircraft Serial Number | LJ-393 |
| Certified Max Gross Weight | 9650 |
| 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 | 8 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | Jul 7 1998 12:00AM |
| Airframe hours since last inspection | 189 |
| Airframe Hours | 8716 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | STONE AVIATION, LLC |
| Aircraft Owner Street Address | 4801 JOHN CARRELL RD. |
| Aircraft Owner City | DENTON |
| Aircraft Owner State | TX |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 76207 |
| Operator is an individual? | -- |
| 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? | 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 | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | PWA |
| Departure City | OKLAHOMA CITY |
| Departure State | OK |
| Departure Country | |
| Departure Time | 1120 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | Q39 |
| Destination City | |
| Destination State | |
| Destination Country | |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 10 2001 12:26PM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 25 |
| Runway Length | 6880 |
| Runway Width | 60 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |