As we slowly drift off topic I thought I would add a little.
As a result of the incident on the QF flight Boeing released a all operators telex informing them of the findings and as a result other operators found defects with the E1/E2 drip shield. This resulted in the Boeing SB being released which reinforces the drip shield gutters and the top of the drip shield which forms part of the E/E cooling plenum on top of the E1/E2 shelves.
The most significant damage I found was not to the gutters but to the top of the plenum. But to find this you had to boroscope the plenum so it is not readily visible to maintenance staff. So how can it be a maintenance issue?
By the way to repair this you have to remove the Galley complex at door 1 so not an easy task to do.