Individually Owned: 150,657
Corporate Owned: 137,281
Miami International Airport
Aircraft Accident/Incident Report
Miami, Florida 33132
Sunday, February 4, 2007 22:55 EST
NTSB Narrative Summary Released at Completion of Accident
The captain stated that during the landing rollout, while the airplane was at a speed of about 100-120 knots, and while the thrust reversers were deployed, the airplane began to lean and veer to the right. He said that he initially thought it may have been due to the crosswind, but he soon realized that the landing gear had collapsed. The captain estimated that when the airplane began to lean and veer it was positioned in the vicinity of taxiway T-2, and the airplane stopped in the vicinity of taxiway U. The flight crew then evacuated the airplane onto the taxiway via the L1 door slide. The digital flight data recorder (DFDR) and cockpit voice recorder (CVR) were examined by the NTSB. All pertinent parameters on the DFDR were noted to be consistent with those of a normal landing having been performed. When the CVR was auditioned, all conversations were in Spanish and proved to be consistent with a normal landing having occurred. Disassembly of components of the right main landing gear torque tube showed that the outboard torque tube attach bolt had backed out from the piston prior to the incident. The torque tube is attached to the piston by an attach bolt, which is threaded and has a hole drilled in the end. The attach bolt is threaded into the piston and then torqued to 475 ft-lbs. The next step is to install the lockbolt, which retains the attach bolt in place. According to the operators Manager of Quality Assurance, the attach bolt was not properly torqued and the lockbolt was installed, but not through the hole in the end of the attach bolt. As a result, after 11 cycles, the attach bolt backed out of the threaded area of the piston and the right main landing gear collapsed. According to the QA Manager, during installation of the right main landing gear, a maintenance personnel shift change had occurred, and the new shift was not informed by the outgoing shift what work still needed to be accomplished, which resulted in the right main landing gear being reassembled incorrectly. Damaged landing gear parts were collected and sent to the NTSB's Metallurgical Laboratory, Washington DC, where they were examined optically. The examination revealed that the damaged parts exhibited signatures consistent with that of overstress separations. No preexisting cracks or corrosion were noted.
NTSB Probable Cause Narrative
Improper torque of a landing gear lockbolt by company maintenance personnel during landing gear installation.
Event Information
| Type of Event | Incident |
| Event Date | 2/4/2007 |
| Event Day of the Week | Sunday |
| Time of Event | 2255 |
| Event Time Zone | Eastern Standard Time |
| Event City | Miami |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 33132 |
| Event Date Year | 2007 |
| Event Date Month | 2 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 254735N |
| Event Location Longitude | 0801726W |
| Event Location Airport | Miami International Airport |
| 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 | 8 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2253 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | MIA |
| Elevation of weather observation facility | 8 |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Night |
| Lowest Ceiling Height | 1000 |
| Lowest Non-Ceiling Height | 500 |
| Sky/Lowest/Cloud Conditions | Scattered |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 3 |
| Air Temperature at event time (in degrees celsius) | 19 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 40 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 13 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 16 |
| Altimeter Setting at event time (in. Hg) | 30.2 |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23052 |
| NTSB Notification Source | FAA ATL Comm. Center |
| NTSB Notification Date | Feb 4 2007 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Feb 28 2008 3:59PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Instrument Meteorological Cond |
| FAA District Office | Miami, Florida |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | HK2277 |
| NTSB Number | MIA07IA047 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 129: Foreign |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | McDonnell Douglas |
| Aircraft Model | DC-8-71F |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 45976 |
| Certified Max Gross Weight | 328000 |
| 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 | 7 |
| Number of Engines | 4 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Jan 1 2007 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 95846 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Tampa Cargo |
| Aircraft Owner Street Address | Carrera 76 No-34A-61 |
| Aircraft Owner City | Medellin |
| Aircraft Owner State | -- |
| Aircraft Owner Country | CO |
| Aircraft Owner Zipcode | -- |
| 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 | TAMF |
| Owner has at least one certificate | None |
| 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 | 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 | No |
| Departure Airport Code | SKRG |
| Departure City | Medellin |
| Departure State | -- |
| Departure Country | CO |
| Departure Time | 1955 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | MIA |
| Destination City | Miami |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | Landing |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Feb 5 2008 3:20PM |
| User who most recently changed record | KENJ |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 09R |
| Runway Length | 13000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |