Individually Owned: 151,845
Corporate Owned: 143,699
Miami International Airport
Aircraft Accident/Incident Report
Miami, Florida 33152
Monday, October 23, 1995 3:50 EDT
NTSB Narrative Summary Released at Completion of Accident
The flight had an uncontained failure of the No. 4 engine during the takeoff roll. The takeoff was rejected and the aircraft stopped on the remaining runway. Airport emergency personnel extinguished a fire that erupted in the engine after failure. Examination of the aircraft showed the engine, pylon, right wing, flaps, and aileron, right horizontal stabilizer, and fuselage sustained damage from engine debris released during failure of the engine. Examination of the engine indicated the low pressure turbine fifth stage hub had ruptured. About 180 degrees of the hub rim had separated along with the blade attachment slots and blades. The hub ruptured from an area of a well oxidized, intergranular fracture that originated at a tierod hole. There was no apparent defect observed along the edge of the tierod hole that would cause a crack to initiate and propagate to critical length.
NTSB Probable Cause Narrative
failure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine.
Event Information
| Type of Event | Accident |
| Event Date | 10/23/1995 |
| Event Day of the Week | Monday |
| Time of Event | 350 |
| Event Time Zone | Eastern Daylight Time |
| Event City | MIAMI |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 33152 |
| Event Date Year | 1995 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | |
| Event Location Longitude | |
| Event Location Airport | MIAMI INTERNATIONAL |
| Event Location Nearest Airport ID | MIA |
| 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 | 11 |
| Weather Briefing Completeness | Full |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 450 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 270 |
| Weather Observation Facility ID | MIA |
| Elevation of weather observation facility | 11 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 0 |
| Lowest Non-Ceiling Height | 12000 |
| 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) | 7 |
| Air Temperature at event time (in degrees celsius) | 23 |
| Dew Point at event time (in degress fahrenheit) | 22 |
| Wind Direction (degrees magnetic) | 20 |
| Variable Wind Indicator | Unknown |
| Wind Speed (knots) | 3 |
| Wind Velocity Indicator | Unknown |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29 |
| Density Altitude (feet) | 1000 |
| 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 | 5 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 1990 |
| NTSB Notification Source | -- |
| NTSB Notification Date | Oct 23 1995 12:00AM |
| NTSB Notification Time | 900 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Dec 7 2000 4:40PM |
| User who most recently changed record | dbo |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N613FF |
| NTSB Number | MIA96FA013 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Substantial |
| Aircraft Fire | Ground |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Boeing |
| Aircraft Model | 747-121 |
| Aircraft Series Identifier | 747-121 |
| Aircraft Serial Number | 19647 |
| Certified Max Gross Weight | 734000 |
| 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 | 4 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Oct 23 1996 12:00AM |
| Airframe hours since last inspection | 0 |
| Airframe Hours | 22911 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | TOWER AIR INC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | JAMAICA |
| Aircraft Owner State | NY |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 11430 |
| Operator is an individual? | No |
| 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 | TWRA |
| Owner has at least one certificate | -- |
| Other Operator of large aircraft? | -- |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | International |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | MIA |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 350 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | TTPP |
| Destination City | PORT OF SPAIN |
| Destination State | OF |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Aug 6 2004 10:50AM |
| User who most recently changed record | NTSB\HAMG |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 9L |
| Runway Length | 10502 |
| Runway Width | 200 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |