Ayur Incident

The Ayur Incident is a notable incident that occurred sometime in M38, when the Lightning Wraiths encountered a Dark Angels fleet and were intercepted and subjected to an interrogation for unknown reason. However, the claims that these were supposed "Dark Angels", are dubious at best.

Background
The Lightning Wraiths Strike Cruiser Ayur was intercepted by a Dark Angels fleet and its occupants were subjected to a thorough interrogation by an Interrogator-Chaplain. The exact details of the event elude the minds of the Astartes present during the event, but they can acclaim that the interception and subsequent interrogations followed the sudden appearance of Astartes clad in the livery of Dark Angels and black power armour. These "Dark Angels" were requesting supplies when they were hailed by the Ayur and immediately re-entered the warp after receiving aid from the Lightning Wraiths with nary a word.