You really need to look at Airworthiness Notice 75 to see how it may apply to your particular situation. The issue date of this AWN is 4th April 1997 issue 10. There have been no changes recently except that all notices are now printed on A4 size paper. As an owner of an aircraft on the british register, you should be supplied with updates to airworthiness notices as they become avaialable or you can download them from the internet at <a href="http://www.srg.caa.co.uk" target="_blank">www.srg.caa.co.uk</a>. . . . <small>[ 17 March 2002, 22:23: Message edited by: HiSpeedTape ]</small>