Individually Owned: 150,657
Corporate Owned: 137,281
Denver International Airport
Aircraft Accident/Incident Report
Denver, Colorado 80239
Thursday, May 2, 1996 16:24 MDT
NTSB Narrative Summary Released at Completion of Accident
After takeoff, the right main landing gear failed to retract. After review of procedures, the pilots elected to continue to their destination. On arrival, when the landing gear was selected to the down position, all landing gear indicated down and locked and the right main was visually verified by the captain. During landing roll, when passing through approximately 60 knots, the right main landing gear indication gave an intermittent unsafe indication. The pilot flying added power to go-around and the right main landing gear collapsed. The aircraft rolled/slid to a stop on the runway and an uneventful evacuation was conducted. Examination of the right main landing gear assembly provided evidence that the extension/retraction actuator had failed at the spherical bearing. Metallurgical examination found the spherical bearing had failed in fatigue and evidenced by wear and binding in certain positions. It was dry and there was no evidence of lubrication. A review of maintenance procedures and records for the aircraft revealed that all maintenance and inspections had been performed in accordance with applicable directives.
NTSB Probable Cause Narrative
fatigue failure of the right main landing gear hydraulic actuator rod at the spherical bearing due to a lack of lubrication.
Event Information
| Type of Event | Accident |
| Event Date | 5/2/1996 |
| Event Day of the Week | Thursday |
| Time of Event | 1624 |
| Event Time Zone | Mountain Daylight Time |
| Event City | DENVER |
| Event State | COLORADO |
| Event Country | -- |
| Zipcode of the event site | 80239 |
| Event Date Year | 1996 |
| Event Date Month | 5 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | DENVER INTERNATIONAL |
| Event Location Nearest Airport ID | DEN |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 2 |
| Degrees magnetic from airport | 50 |
| Airport Elevation | 5431 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1625 Mountain Daylight Time |
| Direction of event from weather observation facility (degrees) | 50 |
| Weather Observation Facility ID | DEN |
| Elevation of weather observation facility | 5431 |
| Distance of event from weather observation facility (units?) | 2 |
| Time Zone of the weather observation | MDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 9000 |
| 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) | 10 |
| Air Temperature at event time (in degrees celsius) | 22 |
| Dew Point at event time (in degress fahrenheit) | 0 |
| Wind Direction (degrees magnetic) | 130 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 8 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 7400 |
| 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 | 11 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1636 |
| NTSB Notification Source | -- |
| NTSB Notification Date | May 2 1996 12:00AM |
| NTSB Notification Time | 1730 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 8 2000 9:59AM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N154ZV |
| NTSB Number | FTW96FA198 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 135: Air Taxi & Commuter |
| 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 | 1900D |
| Aircraft Series Identifier | 1900D |
| Aircraft Serial Number | UE-154 |
| Certified Max Gross Weight | 16900 |
| 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 | 21 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Apr 1 1996 12:00AM |
| Airframe hours since last inspection | 416 |
| Airframe Hours | 2442 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | MESA AIR GROUP, INC. |
| Aircraft Owner Street Address | 2325 E. 30TH STREET |
| Aircraft Owner City | FARMINGTON |
| Aircraft Owner State | NM |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 87401 |
| Operator is an individual? | -- |
| Operator Name | MESA AIRLINES, INC. |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 1140 W. NAVAJO |
| Operator City | FARMINGTON |
| Operator State | NM |
| Operator Country | |
| Operator Zip code | 87401 |
| Operator Code | MASA |
| 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 | 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 | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | GUC |
| Departure City | GUNNISON |
| Departure State | CO |
| Departure Country | |
| Departure Time | 1540 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | DEN |
| 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 10:30AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 7 |
| Runway Length | 12000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |