However I think the AAIB comment inappropriate: if someone publishes incorrect or outdated information ...........
The NATS website is an official document and should always be correct. The comprehensive AIP entry for a licenced aerodrome is mandatory. The administrator for the aerodrome must maintain the information up to date. Where things may change then a NOTAM should be published and remain live until the publication itself is updated. Pooleys/AFE and SkyDemon etc., in my experience, are very conscientious to ensure that their information is up to date by cross reference to the AIP and NOTAMS. The AIP data on the NATS website is always available without charge. In fact it is good airmanship in my view to print the particular AIP aerodrome page and keep it in the knee board as part of the pre joining brief. At this moment in time the Wycombe website is not fully up to date but their AIP entry is.