Anyone seen this. Pump cavitation on morning start. Pump and reservoir have been replaced. You can work the hand pump and get it to stop and then pressure goes right on up to 3ooo. Or if you motor the Rt engine hyd pump, the aux pump will stop cavitating and work normal after the engine motoring stops. OK, the rest of the day - no other problems. Aux pump sw on, got pressure. Let the acft sit overnight,
same thing happens on wake up. This whole gitch just didn't happen, it slowly kept getting worse and worse.
