There are two type of P&D valve( 3.5+-.25 & 5+-.25) wt u think which was good for T56 engine. More over we replaced P&D Valve but result is same during escanding. Regards
No3 psn engine oil lose during escanding of the aircraft , all normal at ground and level flight but escanding & nose is high it's start loosing oil from mast drain. Any advise from ur side.
Further more the problem in gamble the cables are not in proper places .u can check IPB & 76JG ( all 13 cable length with there actuall positon on gamble) u can measure and resolve gamble problem too.
If syn system is good and ur prop pitch lock during descending most properly cause it NTS system.if u changed propeller and problem is there so check it NTS bracket may not sticky or not properly working.regards