27 - 30 - Engine Room R/B Assembly and Engine Room J/B Assembly Inner Circuit

27 - Engine Room R/B Assembly and Engine Room J/B Assembly Inner Circuit:

28 - Engine Room R/B Assembly and Engine Room J/B Assembly Inner Circuit:

29 - Engine Room R/B Assembly and Engine Room J/B Assembly Inner Circuit:

30 - Engine Room R/B Assembly and Engine Room J/B Assembly Inner Circuit: