Individually Owned: 150,657
Corporate Owned: 137,281
Miami International Airport
Aircraft Accident/Incident Report
Miami, Florida 33122
Thursday, August 31, 2006 13:20 EDT
NTSB Narrative Summary Released at Completion of Accident
With the flightcrew aware that the anti-skid system was inoperative, the flight departed. Once near the destination airport, the flightcrew requested the longest runway for landing, which was granted. Prior to the landing, the flightcrew performed normal cockpit duties, and discussed the inoperative anti-skid system. About 2 seconds after touchdown, the left main tires blew. The local controller advised the flightcrew that the airplane was trailing smoke, and after the airplane came to a stop, the captain initiated an evacuation. Examination of the airplane revealed that the left main landing gear outboard and inboard tires, wheels, and brakes were ground away, and, other than the source of the inoperative anti-skid system warning, the examination did not reveal any failures or malfunctions. Examination of data retrieved from the Digital Flight Data Recorder (DFDR) did not reveal any system failures or malfunctions that would have affected the handling or braking characteristics of the airplane, except for the inoperative anti-skid system. With the anti-skid system disabled, the pilot flying could prematurely apply braking during touchdown causing a wheel to lock and the associated tires to blow. The quick reference handbook (QRH) stated that "after landing use minimum braking consistent with runway" and the minimum equipment list (MEL) stated "brake with caution." However, even though the QRH and MEL did provide general information, both documents did not provide specific information on the affects of an inoperative anti-skid system on spoiler deployment and/or touchdown protection.
NTSB Probable Cause Narrative
The pilot's inadvertent application of the left brakes at touchdown. Contributing to the incident was insufficient information in the quick reference handbook on the loss of touchdown protection with an inoperative anti-skid system.
Event Information
| Type of Event | Incident |
| Event Date | 8/31/2006 |
| Event Day of the Week | Thursday |
| Time of Event | 1320 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Miami |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 33122 |
| Event Date Year | 2006 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 254736N |
| Event Location Longitude | 0801726W |
| Event Location Airport | Miami International Airport |
| Event Location Nearest Airport ID | KMIA |
| Indicates whether the acc/inc occurred off or on an airport | On Airport |
| Distance from airport in statute miles | 0 |
| Degrees magnetic from airport | -- |
| Airport Elevation | 8 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1353 Eastern Daylight 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 | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 30000 |
| Lowest Non-Ceiling Height | 3200 |
| Sky/Lowest/Cloud Conditions | Few |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 32 |
| Dew Point at event time (in degress fahrenheit) | 23 |
| Wind Direction (degrees magnetic) | 220 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 13 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 29.92 |
| 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 | 118 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 23763 |
| NTSB Notification Source | FAA Atlanta Comm Center |
| NTSB Notification Date | Aug 31 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jun 30 2008 11:48AM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | FSDO-19, Miami, Fl. |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N425US |
| NTSB Number | MIA06IA133 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Boeing |
| Aircraft Model | 737-400 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 23992 |
| Certified Max Gross Weight | 143000 |
| 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 | 150 |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Continuous Airworthiness |
| Date of Last Inspection | Aug 1 2006 12:00AM |
| Airframe hours since last inspection | 6 |
| Airframe Hours | 47826 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Aircraft Statutory Trust N425US |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Wilmington |
| Aircraft Owner State | DE |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 19801 |
| Operator is an individual? | No |
| Operator Name | US Airways |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 111 West Rio Salado Pkwy. |
| Operator City | Tempe |
| Operator State | AZ |
| Operator Country | USA |
| Operator Zip code | 85281 |
| Operator Code | USAA |
| 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 | Scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Passenger Only |
| Type of Flying (Per_Bus / Primary) | -- |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | KCLT |
| Departure City | Charlotte |
| Departure State | NC |
| Departure Country | USA |
| Departure Time | 1135 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | KMIA |
| Destination City | Miami |
| Destination State | FL |
| Destination Country | USA |
| Specific Phase of Flight | Landing - flare/touchdown |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 4 2008 11:03AM |
| User who most recently changed record | MUZD |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 27 |
| Runway Length | 13000 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |