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B767-300 flight crew experiences EICAS malfunction causing multiple horns to sound with no status or EICAS messages noted or showing on screens. After consulting with maintenance the ETOPS flight diverts to a suitable alternate.
| Attributes | |
| ACN | 1024596 |
| Time | |
| Date | 201207 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | B767-300 and 300 ER |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Central Warning/Master Caution |
| Person 1 | |
| Function | First Officer Pilot Not Flying |
| Qualification | Flight Crew Multiengine Flight Crew Flight Instructor Flight Crew Flight Engineer Flight Crew Air Transport Pilot (ATP) |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 24000 Flight Crew Type 7000 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
Approximately 2.5 hours after departure; aircraft experienced a malfunction causing multiple aural horns to sound. No status or EICAS messages were noted or showing on screens; unable to silence any of the warnings. Duties were designated; relief pilot called to flight deck and a phone patch was initiated to confer with maintenance and flight control. Problem was isolated to right EICAS computer failure. Procedures were followed as per maintenance directions. With the loss of the computer it was agreed upon with flight control to divert. With procedures complete we initiated a divert with ATC. We then reviewed landing weights and current fuel status. Decision was made to dump fuel and procedure followed. When complete still over maximum landing weight so held for approximately 30 minutes to burn additional fuel to be below max landing weight on arrival. Arrival and approach into the airport using longest runway. Taxied into gate and secured aircraft.
Original NASA ASRS Text
Title: B767-300 flight crew experiences EICAS malfunction causing multiple horns to sound with no status or EICAS messages noted or showing on screens. After consulting with maintenance the ETOPS flight diverts to a suitable alternate.
Narrative: Approximately 2.5 hours after departure; aircraft experienced a malfunction causing multiple aural horns to sound. No status or EICAS messages were noted or showing on screens; unable to silence any of the warnings. Duties were designated; Relief Pilot called to flight deck and a phone patch was initiated to confer with maintenance and flight control. Problem was isolated to right EICAS computer failure. Procedures were followed as per maintenance directions. With the loss of the computer it was agreed upon with flight control to divert. With procedures complete we initiated a divert with ATC. We then reviewed landing weights and current fuel status. Decision was made to dump fuel and procedure followed. When complete still over maximum landing weight so held for approximately 30 minutes to burn additional fuel to be below max landing weight on arrival. Arrival and approach into the airport using longest runway. Taxied into gate and secured aircraft.
Data retrieved from NASA's ASRS site as of July 2013 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.