APU ---> Universal Joint.
regds
MEL
Turning Radii ---> IRU [Inertial reference unit]
Equipment ---> TCAS.
Toilet System-->Mikoyan
(parent company of MiG-21s)
Mikoyan --> NLG
NLG ---> Gearshaft.
Gearshaft --> Tarmac
Echo ---> Ozone convertor.
JumboJet wrote: Ozone convertor --> Romeo