I think I have found NR-N. It will have been K6200:
https://www.yorkshire-aircraft.co.uk...k39/k6200.html
which the ORB confirms was coded NR-N.
The ORB says:
"Anson K6200, while engaged in local circuits and landings at night, overshot on the first landing, crashing through the aerodrome boundary hedge, with resultant damage to the aircraft. The aircraft touched down at 65 knots but the application of full brake failed to arrest its progress. This failure was attributed to the dampness of the grass. Pilot SERGEANT PILOT 564819 HOLBECHE P No injuries No fire"
The pilot's correct initial was D, maybe just poor writing in the ORB.
As can be seen, K6200 was sent away for repair before being allocated to Canada and its ship sunk by a U-Boat in transit.