IF we assume there was no significant, relevant failure of the CPDS, is it generally agreed that:
according to predicted fuel burn, initial quantity and flight duration the acft was within 3 minutes of needing to declare a fuel emergency when the pilot requested permission to enter the Glasgow CTR to GCH, several miles away
the supply tank fuel level indications would have been well below full at this time
it should have looked concerning to see the main tank with 75kgs + yet supply tank quantity below full
amber low fuel warnings would have been displayed before engine flame out
red low fuel warnings would have been later displayed and before flame out
according to the AAIB report the immediately previous tasks were non-urgent?