[GRADE A2 -- operational emails and logistics records]
Several non-flight-log documents in the corpus reference Luton as an operational airport, including flight support logistics, customs/handling coordination, and routing/planning:
WHAT THIS SHOWS AND DOES NOT SHOW: These records support the interpretation that Luton was not only a destination/stop in flight logs but also an operational node (handling/customs and flight-support logistics). They do NOT identify who was on any specific flight beyond what manifests/flight logs/TECS explicitly list.