AIRAC 2011b revision
*Added upper TMA volumes to improve sector crossing calculations
*Fixed Port Hedland typo
*Assigned DEP as default assigned sector for YPAD west (WF only), YPPH and YPPD (WF only) departures
*Added upper TMA volumes to improve sector crossing calculations
*Fixed Port Hedland typo
*Assigned DEP as default assigned sector for YPAD west (WF only), YPPH and YPPD (WF only) departures