The Autoprop should be re-greased once every two years or if more convenient during your annual haul out.
Did You re-grease it at the haul out or was it not 'convenient'?
It would be interesting , just for the record, if You could post ,just copy and paste,the comments/replies from:
1: The surveyor that did the 'very-very very' survey last year.
It may help other to avoid such an incident.