Going back to your original point for a minute, Ali Crom...Decades ago,aircraft spares were simply demanded,received and fitted, job done. Now with decades of experience,a highly skilled management team, computerised stock control etc,etc, you have little or no stock of common basic spares and AGS. This cannot be accidental.It must be a deliberate ploy to discourage engineers from recording defects where the parts are difficult or impossible to get within the planned downtime.Bean counters as usual!If you go to any half decent car spares shop,they can get you what you want from stock,or within a morning or so.Of course you do have to buy the NHA rather than just the bit you want,but that's not the point.Go to any supermarket...miles of shelves,full of stock.In contrast, go into your store at work and you cannot even get a panel screw. I dont believe this is down to incompetence. I have similar suspicions as to why aircraft are never washed properly for inspections.