There is some complete and utter rubbish being thrown about on this thread. On Thursday 31 Jan, the LGW-SFB flight was subbed out several hours before the XL aircraft allegedly had a tailscrape operating that very same sector. The XL aircraft never took off from LGW to operate that flight - it was subchartered. The XL crew could never have been "out of hours" - they didn't even operate the LGW-SFB flight on Thursday. I don't know what point someone is trying to prove here, but the facts are demonstrably wrong.