Qantaslink Engineering (Eastern/Sunstate Turboprop) bases are SYD, MEL, BNE, CBR for Line maintenance. Tamworth for Heavy maintenance
There are contracted service providers for turboprop fleet in TSV, CNS, ADL and Network in Perth which is owned by Qantas but contracts to Sunstate for the Q400.
Qantaslink 717 Engineering is provided by the operator 717 operator Cobham at the ports mentioned my Clarrie above