From the performance charts I have, the V-22 can't fly on one engine slower than 40kts at any weight, therefore no OEI OGE hover. If an engine fails with necells at higher angle than 60° it is advised to lowering them, and accelerate to safe airspeed for climb - dependent on weight and environmental conditions. With both engines INOP it is advised to pull necells all the way back (95°) and try achieve autorotation at 110kts and 5000fpm descent.