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B777 captain reported diverting due to overflowing lavatory sinks which had been MEL'ed by maintenance in a supposedly functional configuration.
| Attributes | |
| ACN | 879045 |
| Time | |
| Date | 201003 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZZ.ARTCC |
| State Reference | FO |
| Environment | |
| Flight Conditions | IMC |
| Aircraft 1 | |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Cruise |
| Component | |
| Aircraft Component | Waste Water Disposal System |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 21000 Flight Crew Type 2200 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Other / Unknown |
Narrative:
Plane with history of sinks overflowing on landing was fixed prior to flight. I was assured a dump valve for the water system was deferred open and the waste water would drain properly. Got to the top of cruise when I was informed of almost two quarts of water were pooled on the first and business blue room floors. My concern was water leaking into the electrical equipment compartment and also the health hazard of the waste water. I elected to land overweight at a nearby airport and have it fixed. Smooth landing and uneventful.
Original NASA ASRS Text
Title: B777 Captain reported diverting due to overflowing lavatory sinks which had been MEL'ed by maintenance in a supposedly functional configuration.
Narrative: Plane with history of sinks overflowing on landing was fixed prior to flight. I was assured a dump valve for the water system was deferred open and the waste water would drain properly. Got to the top of cruise when I was informed of almost two quarts of water were pooled on the first and business blue room floors. My concern was water leaking into the electrical equipment compartment and also the health hazard of the waste water. I elected to land overweight at a nearby airport and have it fixed. Smooth landing and uneventful.
Data retrieved from NASA's ASRS site as of April 2012 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.