B764/23
KARRATHA (YPKA) TWR ATS NOT AVBL DUE OPERATIONAL RESTRICTIONS
KARRATHA CLASS D AIRSPACE BECOMES CLASS G SFC TO 5500FT AMSL AS PER
EN ROUTE SUPPLEMENT AUSTRALIA YPKA - ATS AIRSPACE - OUTSIDE TWR HR
FIS AVBL MELBOURNE CENTRE 122.4
COMMON TRAFFIC ADVISORY FREQUENCY 127.35
SFC TO 5500FT AMSL
FROM 10 231030 TO 10 271130
DAILY 1030/1130
Karratha.