ASN Wikibase Occurrence # 370281
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| Date: | Thursday 31 August 2006 |
| Time: | 13:20 LT |
| Type: |  Boeing 737-401 |
| Owner/operator: | US Airways |
| Registration: | N425US |
| MSN: | 23992/1764 |
| Year of manufacture: | 1989 |
| Total airframe hrs: | 47826 hours |
| Engine model: | CFM International 56-3B |
| Fatalities: | Fatalities: 0 / Occupants: 118 |
| Aircraft damage: | Minor |
| Category: | Serious incident |
| Location: | Miami International Airport, FL (MIA/KMIA) -
 United States of America
|
| Phase: | Landing |
| Nature: | Passenger - Scheduled |
| Departure airport: | Charlotte-Douglas International Airport, NC (CLT/KCLT) |
| Miami International Airport, FL (MIA/KMIA) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
Probable Cause: 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.
Accident investigation:
 |
|
Sources:
NTSB MIA06IA133
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 25-Mar-2024 09:02 | ASN Update Bot | Added |
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