JM69:
Right reverser locked out for delayed manteinance is confirmed in the article.
You have made a great contribution translating the Spanish press and responding as best you can to requests for information. Please keep it going and don't worry about the outfliers.
I wonder did it also state WHICH engine was found with TR deployed? It seems unlikely to be #2, although, however unlikely, the #2 TR could perhaps have been deployed after a violent impact. More likely, the engine found closest to 36L with TR deployed and which seperated after the tail cone was, in fact, engine #1. If so, this would make TR deployment pre V1 or VR seem less likely as a #1 deployment would have pushed left not right before stall.
The new maintenance data, if true, also adds to the configuration issues scenario as a result of mechanical problems rather than crew.
I note that all remains speculative until more confirmed facts and data become available.