Complex sentence: The Irish Coast Guard last had communication from Rescue 116 at 12:45 am local time as it was making its approach to Blacksod Bay to refuel, common in a long-range and lengthy SAR mission.
Split into simpler sentences: The Irish Coast Guard last had communication from Rescue 116 at 12:45 am local time as it was making its approach to Blacksod Bay to refuel. Refuelling is a common practice in a long-range and lengthy SAR mission.