Hi
Long time reader here. IT professional by trade but have air-transport engineering degree experience back in the early 90s so some mech eng knowledge.
The report made really interesting reading. The report identifies that the modification to incorporate the Y piece could/did allow the upstairs galley to backflow into the lower galley in the event of a blockage between y and drain mast. It also states that the modification from dual to single nozzle drain mast was done for purely cosmetic reasons. It has now been shown that this has introduced the potential for a significant spill into the lower galley and hence the electrics bay. My feeling is that it would be prudent to revert the plumbing to its original configuration.
Question for the techs: is it typical for transport aircraft to have all the generator control units and TRUs in one place? It seems like physical separation of these components into two bays would likely eliminate a single flood causing so many electrical systems going offline. Hydraulic lines are , where possible, routed so as to prevent the confluence of all systems in at-risk areas of the aircraft - we should do the same with the electrical system too.
Cheers
James
Last edited by rottenlungs; 14th Dec 2010 at 11:01.
Reason: Edited to correct crummy splelng..