Getting it wrong

Today’s Sunday Independent reports on a Boeing 757 flying from London to Boston which had to land at Dublin, due to “technical issues with the Boeing 757-200 plane’s nose-wheel steering”. You might ask why an aircraft with duff nose-wheel steering might not simply continue to Boston to be fixed there.

Somebody with a clue gives us some more information:

When the left hyd sys is u/s consequences are:
– 1 autopilot (out of 3) inop;
– No autoland;
– No Autobrakes;
– Some spoilers on each wings inop;
– Rudder ratio inop;
– Left thrust reverser inop;
– Electric slats and flaps extention required (takes longer time and less flaps must be used for landing, Flaps 20 iso Flaps 30);
– Alternate gear extension required (then it is not possible to raise the gear knowing it makes a lot of drag);
– Alternate brakes inop (reserve and narmal brakes are still working);
– Yaw dampres inop;
– Nose wheel steering inop (towing required after landing).

Of all the things that weren’t working, the Sunday Independent noticed the minor one.


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