Individually Owned: 150,657
Corporate Owned: 137,281
Narita International Airport
Aircraft Accident/Incident Report
Tokyo
Wednesday, July 28, 2010 9:04 UTC
NTSB Narrative Summary Released at Completion of Accident
On July 28, 2010, at about 0904 UTC, the crew of a United Airlines Boeing 777-200B airplane, N219UA, operating as flight 852, heard a loud bang from the right hand (number 2) engine while climbing through 11,000 feet above Mean Sea Level (MSL), followed after 3-4 seconds by a high pitch grinding noise. Within a few more seconds it was reported that all engine instrumentation for the number 2 engine had decreased to zero. An emergency was declared and the airplane descended to 10,000 foot MSL. Approximately 90,000 lbs of fuel was jettisoned before landing with the airplane being approximately 12,000 pounds overweight. The engine failure was contained but metal debris was observed in the tailpipe.
The number 2 engine a PW4090-3, S/N 222178, was removed from the airplane at the United Airlines facility in Narita, Japan and at the direction of the Japanese Transportation Safety Board was shipped to the United Airlines facilities in San Francisco, California, United States of America for teardown and further examination by the National Transportation Safety Board.
The accident is being investigated by the Japanese Transportation Safety Board
Ministry of Land, Infrastructure, Transport and Tourism
2-1-2, Kasumigaseki, Chiyoda-ku
Tokyo 100-8918
Japan
Tel.: (81) 3 5253 8486
Fax: (81) 3 5253 1680
E-mail: jtsb@mlit.go.jp
AFTN: RJTDYAYA
Cable: KOKUKYOKU-TOKYO
Website: http://www.mlit.go.jp/jtsb/english.html
This report is for informational purposes only and contains only information obtained for, or released by the Government of Japan.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Incident |
| Event Date | 7/28/2010 |
| Event Day of the Week | Wednesday |
| Time of Event | 904 |
| Event Time Zone | Coordinated Universal Time? Same as GMT |
| Event City | Tokyo |
| Event State | -- |
| Event Country | -- |
| Zipcode of the event site | -- |
| Event Date Year | 2010 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | Narita International Airport |
| Event Location Nearest Airport ID | NRT |
| Indicates whether the acc/inc occurred off or on an airport | -- |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | -- |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| Lighting Conditions | -- |
| Lowest Ceiling Height | -- |
| Lowest Non-Ceiling Height | -- |
| Sky/Lowest/Cloud Conditions | -- |
| Sky Condition for Lowest Ceiling | -- |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | -- |
| Air Temperature at event time (in degrees celsius) | -- |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | -- |
| Event Highest Injury | -- |
| On Ground, Fatal Injuries | -- |
| On Ground, Minor Injuries | -- |
| On Ground, Serious Injuries | -- |
| Injury Total Fatal | -- |
| Injury Total Minor | -- |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | Foreign |
| NTSB Docket Number (internal use) | -- |
| NTSB Notification Source | UAL |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | May 1 2014 10:34AM |
| User who most recently changed record | broda |
| Basic weather conditions | -- |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | -- |
| NTSB Number | ENG10WA044 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 121: Air Carrier |
| Type of Flight Plan filed | Unknown |
| Flight plan Was Activated? | -- |
| Damage | None |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | BOEING |
| Aircraft Model | 777 |
| Aircraft Series Identifier | 206 |
| Aircraft Serial Number | -- |
| Certified Max Gross Weight | -- |
| 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 | -- |
| Number of Engines | 2 |
| Fixed gear or retractable gear | Fixed |
| Aircraft, Type of Last Inspection | -- |
| Date of Last Inspection | -- |
| Airframe hours since last inspection | -- |
| Airframe Hours | -- |
| ELT Installed | Unknown |
| ELT Activated | Unknown |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | -- |
| Aircraft Owner Name | United Airlines |
| Aircraft Owner Street Address | 77 West Wacker Drive |
| Aircraft Owner City | Chicago |
| Aircraft Owner State | IL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 60601 |
| Operator is an individual? | No |
| Operator Name | -- |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | -- |
| Operator State | -- |
| Operator Country | USA |
| Operator Zip code | -- |
| Operator Code | UALA |
| Owner has at least one certificate | Yes - certificate holder |
| Other Operator of large aircraft? | No |
| Certified for Part 133 or 137 Operation | -- |
| Operator Certificate Number | UALA011A |
| 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 | NRT |
| Departure City | Tokyo, Japan |
| Departure State | -- |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | UTC |
| Destination Same as Local Flt | -- |
| Destination Airport Code | SFO |
| Destination City | San Francisco |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Sep 16 2010 4:16PM |
| User who most recently changed record | reih |
| Since inspection or accident | -- |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |