Individually Owned: 150,657
Corporate Owned: 137,281
Anchorage International Airport
Aircraft Accident/Incident Report
Anchorage, Alaska 99502
Sunday, October 15, 2000 AKD
NTSB Narrative Summary Released at Completion of Accident
A Boeing 747 cargo airplane began to taxi for departure. The crew hear a 'thump' type of noise, but attributed the noise to the airplane tires running over a rut. The captain continued taxiing. During the takeoff roll, about 130 knots indicated airspeed (IAS), the captain heard and felt another 'thump', followed by a substantial vibration. The captain said he aborted the takeoff about 148 knots IAS, and applied maximum braking and maximum reverse thrust. The airplane reached 166 knots before beginning to slow. The airplane ran off the paved end of the runway into a clearway consisting of soft dirt, stopping about 486 feet beyond the paved end of the runway as the landing gear wheels sank into the soft terrain. The runway had 11,584 feet of pavement available for use. About 1,500 feet from the beginning of the runway, a large amount of shredded tire debris, along with gouge marks consistent with tire wheel rims, were found on the runway. At the point of rest, the number 11, and number 12 tires, installed as the two aft tires on the right body landing gear assembly, were shredded and destroyed. Tires one through four, were inflated and undamaged. The number five tire was cut, torn and flat. Tires six, seven and eight, were flat. Tires nine and ten were still inflated. Tires 13, 14, 15, and 16, were flat. The nose wheel tires were undamaged and inflated. The airplane also received damage to the underside of the right flap assembly, damage to the right main landing gear hydraulic brake system, a landing gear door, and damage to the brake assemblies. The airplane's takeoff gross weight for the flight was 794,200 pounds. For takeoff operations on the runway utilized, the runway takeoff gross weight was 795,300 pounds.
NTSB Probable Cause Narrative
Rupture and disintegration of main landing gear tires during the takeoff roll, and subsequent damage to the right main gear hydraulic brake system.
Event Information
| Type of Event | Incident |
| Event Date | 10/15/2000 |
| Event Day of the Week | Sunday |
| Time of Event | 35 |
| Event Time Zone | -- |
| Event City | ANCHORAGE |
| Event State | ALASKA |
| Event Country | -- |
| Zipcode of the event site | 99502 |
| Event Date Year | 2000 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | ANCHORAGE INTERNATIONAL |
| Event Location Nearest Airport ID | PANC |
| 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 | 144 |
| Weather Briefing Completeness | Not pertinent |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 101 Atlantic Daylight Time |
| Direction of event from weather observation facility (degrees) | 0 |
| Weather Observation Facility ID | PAN |
| Elevation of weather observation facility | 144 |
| Distance of event from weather observation facility (units?) | 0 |
| Time Zone of the weather observation | ADT |
| Lighting Conditions | Night/Dark |
| Lowest Ceiling Height | 8500 |
| Lowest Non-Ceiling Height | 0 |
| Sky/Lowest/Cloud Conditions | Unknown |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | 0 |
| Visibility Runway Visual Value (Statute Miles) | 0 |
| Visibility (Statute Miles) | 10 |
| Air Temperature at event time (in degrees celsius) | 3 |
| Dew Point at event time (in degress fahrenheit) | 2 |
| Wind Direction (degrees magnetic) | 227 |
| 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) | -- |
| 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 | 3 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 5018 |
| NTSB Notification Source | FAA REGIONAL OPERATIONS CENTER |
| NTSB Notification Date | Oct 15 2000 12:00AM |
| NTSB Notification Time | 50 |
| Fiche Number and/or location -used to find docket information | IMAGE |
| Date of most recent change to record | Jul 2 2001 3:44PM |
| User who most recently changed record | MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N629US |
| NTSB Number | ANC01IA007 |
| Missing Aircraft Indicator | N |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | -- |
| Damage | Minor |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Boeing |
| Aircraft Model | 747-251F |
| Aircraft Series Identifier | 747-251F |
| Aircraft Serial Number | 22388 |
| Certified Max Gross Weight | 817000 |
| 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 | 3 |
| Number of Engines | 4 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | AAIP |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | NORTHWEST AIRLINES INC. |
| Aircraft Owner Street Address | 5101 NORTHWEST DR. |
| Aircraft Owner City | ST. PAUL |
| Aircraft Owner State | MN |
| Aircraft Owner Country | |
| Aircraft Owner Zipcode | 55111 |
| Operator is an individual? | -- |
| 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 | NWAA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | Unknown |
| Operator Certificate Number | -- |
| Indicates whether an air carrier operation was scheduled or not | Non-scheduled |
| Indicates Domestic or International Flight | Domestic |
| Operator carrying Pax/Cargo/Mail | Cargo |
| Type of Flying (Per_Bus / Primary) | Unknown |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | Yes |
| Departure Airport Code | PANC |
| Departure City | |
| Departure State | |
| Departure Country | |
| Departure Time | 35 |
| Departure Time Zone | ADT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | KJFK |
| Destination City | NEW YORK |
| Destination State | NY |
| Destination Country | |
| Specific Phase of Flight | Takeoff |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jun 2 2001 4:08AM |
| User who most recently changed record | dbo |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | 32 |
| Runway Length | 11584 |
| Runway Width | 150 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |