The planes started flying over Marawi on 30 June with Filipino pilots and technicians aboard as part of the crew .
Australia sent AP - 3C Orion planes to the southern Philippines following the conflict as surveillance support .
The planes started flying over Marawi on 30 June with Philippines pilots and technicians aboard as part of the crew .
Australia sent AP - 3C Orion planes to the southern Philippines following the conflict as surveillance support .