Individually Owned: 150,657
Corporate Owned: 137,281
Kissimee Gateway Airport
Aircraft Accident/Incident Report
Kissimmee, Florida 34741
Tuesady, November 8, 2011 18:50 EST
NTSB Narrative Summary Released at Completion of Accident
The pilot was not able to obtain a positive gear down-and-locked indication and noticed that the right main landing gear (MLG) only extended about halfway down. After unsuccessful troubleshooting efforts, he performed an emergency gear-up landing, which resulted in substantial damage to the underside of the fuselage. Examination of the landing gear system revealed that the stub shaft of the right MLG pivot assembly was fractured and exhibited characteristics consistent with a torsional fatigue fracture containing multiple origins. Before the accident flight, a company mechanic observed some hydraulic fluid on the MLG leg and assumed that there was a leak from the pivot gear O-rings, which he replaced.
The Federal Aviation Administration previously issued an airworthiness directive (AD), which included an inspection of MLG pivot assemblies for cracks, in accordance with a manufacturer's service bulletin. The AD did not call for repetitive inspections. At the time of the accident, the airplane had been operated for about 7,755 total hours and about 1,800 hours since the time of AD compliance. The airplane service manual contained a supplemental inspection that included initial visual and eddy current inspections of the MLG pivot assembly for cracks in the spline area at 3,000 hours in service with repeated inspections every 500 hours thereafter. The visual and eddy current inspections had not been nor were they required to be performed on the accident airplane.
NTSB Probable Cause Narrative
A fatigue failure of the right main landing gear pivot assembly, which prevented the landing gear from extending.
Event Information
| Type of Event | Accident |
| Event Date | 11/8/2011 |
| Event Day of the Week | Tuesday |
| Time of Event | 1850 |
| Event Time Zone | Eastern Standard Time |
| Event City | Kissimmee |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 34741 |
| Event Date Year | 2011 |
| Event Date Month | 11 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 281723N |
| Event Location Longitude | 0812613W |
| Event Location Airport | Kissimee Gateway |
| Event Location Nearest Airport ID | ISM |
| 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 | 82 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1845 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | ISM |
| Elevation of weather observation facility | 82 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | Clear |
| Sky Condition for Lowest Ceiling | None |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 23 |
| Dew Point at event time (in degress fahrenheit) | 17 |
| Wind Direction (degrees magnetic) | 40 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 6 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.06 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | None |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 31128 |
| NTSB Notification Source | FAA Southern CROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Mar 20 2013 2:27PM |
| User who most recently changed record | kenj |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5095V |
| NTSB Number | ERA12LA070 |
| 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 | CESSNA |
| Aircraft Model | 172RG |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 172RG0445 |
| Certified Max Gross Weight | 2650 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| 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 | 100 Hour |
| Date of Last Inspection | Oct 20 2011 12:00AM |
| Airframe hours since last inspection | 20 |
| Airframe Hours | 7755 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | Unknown |
| Aircraft Owner Name | SUN STATE AVIATION INC |
| Aircraft Owner Street Address | 3008 W PATRICK ST |
| Aircraft Owner City | KISSIMMEE |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 34741 |
| Operator is an individual? | No |
| Operator Name | SUN STATE AVIATION INC |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | 3008 W PATRICK ST |
| Operator City | KISSIMMEE |
| Operator State | FL |
| Operator Country | USA |
| Operator Zip code | 34741 |
| 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) | Instructional |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | ISM |
| Departure City | Kissimmee |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 1645 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | ISM |
| Destination City | Kissimmee |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Mar 20 2013 2:27PM |
| User who most recently changed record | kenj |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 33 |
| Runway Length | 6001 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |