Being towed to the maintenance centre at Schiphol.  This is one of KLM's first 747's. Some of these aircraft received an upper deck extension to become 747-300SUDs.
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/130275500@N02">G B_NZ</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/130275500@N02/24112648296/">KLM 747-200 PH-BUC at AMS</a>