Alliance Airlines (QQ, Brisbane International) has replaced the B737-400 on wet-lease from New Zealand based partner Airwork Flight Operations (AWK, Auckland International) with a B737-300 from the same operator. Airwork now operates B737-300 ZK-SLA (MSN 23653) on behalf of Alliance on so called FIFO (Fly In, Fly Out) charter services flying mining workers from and to mining sites in Australia.