How thorough actually are these overhauls? are they F exams? after seeing 007 and 054 on test runs its looks as if only the engine, cooler group and wheelsets have had major work done, the fuel tank is stll plastered in rail grime, as is the majority of the underframe equipment too my understanding a few class 60 failures have been down to TPWS and electrical faults, have the electrics been touched?