I know another recent victim to the N1 crisis...broke on a low revving engine at around 1000klm. The driver unfortunately didnt notice the idiot light, it bound the inlet camshaft, skipped the belt and smashed valves into pistons. Ouch!!
I think the material they are using now to produce the gears in them is not up to scratch as the older stock N1 pumps (in Ash's defence) were a good pump. It took me 3 years of limiter smashing and 9000+ rpm launches to break my old stock N1 pump. It may or may not have something to do with the engine build as well, in the past if someone wanted to use an N1 pump id make sure the engine is properly balanced to an exact tolerance and i insist they use a proper balancer on the engine and i ensured it was correctly fitted. Mine is the only engine ive built thats broken a pump.
N1's now are Russian roulette...not a nice game if you loose.