Before start checklist - Doors

[becaspr]

When performing the before start checklist, the FO identified DOORS as closed. However, I had an EICAS saying EXTERIOR DOOR OPEN and it turns out I forgot to close the door where you open and close the nose gear door.

 

The FO should have identified the doors as open and not responded incorrectly.

[jetpipeoverheat]

Those access panel doors should actually be open for engine start under certain conditions. For example, with an inoperative APU you will start the engines with both a GPU (plugged in through that very door you left open) and a ground start cart through an access panel in the rear of the aircraft. Both of those panels open will trigger the EICAS EXTERIOR DOOR OPEN status message, and it's up to you as the captain to verify that you actually want those doors open. The FO doesn't know which type of start you are trying to accomplish.

 

[becaspr]

That makes sense, thanks!