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B747-400 flight crew suffers severe engine damage to #3 engine. Secure engine; dump fuel and return to departure airport.
| Attributes | |
| ACN | 696277 |
| Time | |
| Date | 200605 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | atc facility : zzzz.artcc |
| State Reference | FO |
| Altitude | msl single value : 31000 |
| Aircraft 1 | |
| Controlling Facilities | artcc : zzzz.artcc |
| Operator | common carrier : air carrier |
| Make Model Name | B747-400 |
| Operating Under FAR Part | Part 121 |
| Navigation In Use | ils localizer & glide slope : 27l |
| Flight Phase | cruise : level descent : approach |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain observation : company check pilot oversight : pic |
| Experience | flight time last 90 days : 100 flight time total : 22000 flight time type : 1315 |
| ASRS Report | 696277 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : critical |
| Independent Detector | other flight crewa other other : 3 |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | other other Other |
| Supplementary | |
| Problem Areas | Aircraft |
| Primary Problem | Aircraft |
Narrative:
In cruise at FL310 the EICAS display momentarily blanked. The flight attendants called with a loud bang from door 4R. We didn't hear the noise in the cockpit but did observe the egt rise to about 649 degrees; the autothrottle kicked off; EICAS #3 eec; #3 oil filter; oil pressure went into the red. I woke the bunkies; assigned duties; ran the severe engine damage qrc; contacted dispatch; maintenance; the flight attendants and passenger of our intention to dump fuel and return to ZZZ. We declared an emergency with ATC; the captain (me) shot an ILS to runway 27L to an uneventful landing; taxied in and terminated the flight.
Original NASA ASRS Text
Title: B747-400 FLT CREW SUFFERS SEVERE ENG DAMAGE TO #3 ENG. SECURE ENG; DUMP FUEL AND RETURN TO DEP ARPT.
Narrative: IN CRUISE AT FL310 THE EICAS DISPLAY MOMENTARILY BLANKED. THE FLT ATTENDANTS CALLED WITH A LOUD BANG FROM DOOR 4R. WE DIDN'T HEAR THE NOISE IN THE COCKPIT BUT DID OBSERVE THE EGT RISE TO ABOUT 649 DEGS; THE AUTOTHROTTLE KICKED OFF; EICAS #3 EEC; #3 OIL FILTER; OIL PRESSURE WENT INTO THE RED. I WOKE THE BUNKIES; ASSIGNED DUTIES; RAN THE SEVERE ENG DAMAGE QRC; CONTACTED DISPATCH; MAINT; THE FLT ATTENDANTS AND PAX OF OUR INTENTION TO DUMP FUEL AND RETURN TO ZZZ. WE DECLARED AN EMER WITH ATC; THE CAPT (ME) SHOT AN ILS TO RWY 27L TO AN UNEVENTFUL LNDG; TAXIED IN AND TERMINATED THE FLT.
Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.