BEA/BA crews either worked into Berlin or pax'd in for normally 6 day tours , inc. standby tours . Originally Viscounts then 111s [ MAN as well as LHR crews ], lastly 737s , up to 10 a/c . With up to 4 748s/ATPs . Glad to hear ATRs had ice probs , the ATP's let down was engine deicing gizmos .
The 2 Pan Am 727s trips I hitch hiked on were all US flight deck . Cabin crew on both not regulated as to nationality .
The only a/c and Flight crews who could operate in the corridors were US , UK , French , or Russian .
On ATPs a Danish pilot could not fly the corridors , and on 73s an accent was queried on the radio , and it's Aussie owner banned from Berlin .
rgds condor .