If the fire is so small that you cannot see anything, then there is most probably enough time for the fire brigade to have a look inside the cargo bay.
Dani
Open the door and have a look??? With 200 punters sitting there waiting for their backsides to catch fire I would have thought the very last thing you would want to do was to give the fire some oxygen. Short answer is no, you don't open the door until you have the punters off.
Not sure how accurate the news report I heard was, but they
specifically mentioned that the tower advised of smoke on touchdown. That would have done it for me I'm afraid. "All out, all change please"
Cheers
Bendy