Los Angeles Intl Airport
Aircraft Accident/Incident Report

Los Angeles, California 90045
Friday, June 29, 2007 1:55 PDT

NTSB Narrative Summary Released at Completion of Accident

While taxing for departure, the airplane's No. 12 tire on the right body landing gear contacted foreign object debris (FOD), which resulted in a cut tire and loss of pressure. An electronic message reflecting the loss of pressure in the No. 12 tire was displayed on the engine indicating and crew alerting system (EICAS) in the cockpit; however, no further action was taken by the flight crew. During the takeoff roll, the two aft tires, No. 11 (inboard) and 12 (outboard), on the right body landing gear (RBLG) burst and their associated wheels fractured, which caused minor damage to the airplane. The airplane returned back to the airport and landed uneventfully. Examination of the airplane's systems and wheel assemblies revealed no additional anomalies.

NTSB Probable Cause Narrative

The loss of pressure in the number 12 tire due to inadvertent contact with foreign object debris while taxiing prior to takeoff, which resulted the number 11 tire to over deflect and burst during takeoff roll. Contributing to the incident was the failure of the flight crew to detect and act upon the EICAS message alerting them to the loss of pressure in the number 12 tire.

Event Information

Type of Event Incident
Event Date 6/29/2007
Event Day of the Week Friday
Time of Event 155
Event Time Zone Pacific Daylight Time
Event City Los Angeles
Event State CALIFORNIA
Event Country --
Zipcode of the event site 90045
Event Date Year 2007
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335633N
Event Location Longitude 1182426W
Event Location Airport LOS ANGELES INTL
Event Location Nearest Airport ID LAX
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 126
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 150 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KLAX
Elevation of weather observation facility 126
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Night
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) 9
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 15
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.96
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 237
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 24116
NTSB Notification Source FAA
NTSB Notification Date Jun 29 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 28 2008 3:01PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Federal Aviation Administration

Aircraft Involved

Aircraft #1

Aircraft Registration Number B-2470
NTSB Number LAX07IA198
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 Boeing
Aircraft Model 747-400
Aircraft Series Identifier --
Aircraft Serial Number 29070
Certified Max Gross Weight 853000
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 303
Number of Engines 4
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Jun 1 2007 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SCA Plum Air Lease Co LTD and SL Echo LTD
Aircraft Owner Street Address C/O Sanwa Business Credit Co LTD 6-1 Nishishinjuku
Aircraft Owner City Tokyo
Aircraft Owner State --
Aircraft Owner Country JA
Aircraft Owner Zipcode 163-1508
Operator is an individual? No
Operator Name Air China
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Beijing
Operator State --
Operator Country CH
Operator Zip code --
Operator Code --
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 International
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code LAX
Departure City Los Angeles
Departure State CA
Departure Country USA
Departure Time 150
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code ZBAA
Destination City Beijing
Destination State --
Destination Country CH
Specific Phase of Flight Takeoff - roll/run
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 13 2008 1:05PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location 25R
Runway Length 12091
Runway Width 150
Sight Seeing flight No
Air Medical Flight No
Medical Flight --