Dec 3 (Reuters) - Alliance Aviation Services Ltd AQZ.AX :
* AQZ TRADING UPDATE-AQZ.AX
* SEES UNDERLYING PBT $26.5 MILLION FOR HY ENDING DEC 31
* ALLIANCE NOW OPERATING FLIGHTS ON BEHALF OF VIRGIN AUSTRALIA BETWEEN BRISBANE AND EMERALD
* MATERIAL IMPACT OF INCREASED FLEET ON EARNINGS IS NOT LIKELY UNTIL FY22
* SEES HY STATUTORY PBT ABOUT $33.5 MILLION
* FIRST E190 TO BE IN SERVICE BY MARCH 2021, WITH 5 ADDITIONAL FLEET UNITS READY FOR ENTRY TO SERVICE PRIOR TO 30 JUNE 2021