Was the pilot wearing gloves? This has been asked by Mary and myself several times. It relates to the operation of the overhead switch panel. Pics of the EC135 and CH-47 switch panels have been posted. The CH-47 panel has switches well spaced out and easily operable whilst wearing gloves. The EC135 panel has tiny, closely-spaced switches which appear too small to operate whilst wearing gloves. I think this is a very good question and needs to be answered. Yes or no. Not some long diatribe about sensory perception.
Was the final task completed or terminated? This is an important question. If the task was completed then the return to base was routine. But if the task was terminated that would imply a realisation at that time that fuel was an issue. Again this is a simple yes or no.
Display fault The flight from Dalkeith to Bothwell was a long leg during which the instrument scan should have taken in the fuel indications many times. It should have shown full supply tanks with main tank fuel depleting and then empty main fuel tank with supply tanks depleting. Any incorrect indication or non-indication would have been obvious and there was plenty of time to observe it and think about it. And indeed act on it.
Green non-cautions When these are displayed they give confirmation that the CPDS is working and not just showing a blank screen.