Vessel had raised the anchor with engine off and drained the start battery. Vessel was drifting to the North from Mana Island. Location given incorrect , Navigator had to run as IMT to develop a location
Links:
[1] http://coastguardmana.org.nz/users/trevor-farmer
[2] http://coastguardmana.org.nz/users/cmff
[3] http://coastguardmana.org.nz/users/weedoogie
[4] http://coastguardmana.org.nz/crv/mana-rescue-1