The nature of the incident has not been made known so it is unclear how long the stoppage might be expected to last.
Update Thursday 15th May, 8:00 pm:
Local information is that the boat has now been freed and the locks re-opened.
It is reported that the boat met the Standedge Tunnel width requirements and successfully passed through the tunnel without problem. It then became stuck in Lock 41e for a while and then later in Lock 32e.
Note: Some locks (e.g. 21w, 22w, 41e, 32e) are narrower than others or may have a slight banana-shape. Certain boats may, due to their length or profile, encounter problems with some of these locks. Most boats pass through these locks with no difficulty, however.
Lock 41e, Marsden