As it happens, we took 600 to St Athans for the first Vulcan major servicing at that unit. Around 65 or 66.
On getting airborne to return to Cottesmore the undercarriage doors closed followed by the undercarriage punching the door jacks through the wings.
I can't recall how it got down but there was a row because landing at a Bomber Command base made it Bomber Command accident statistic. The captain was told he should have landed back at St Athan and a Maintenance Command stat.
Nothing like playing from the same song sheet.