A320 purpose of THS on MCDU

[vilas]

This will only be applicable to FWC H2F6. The aircraft having this FWC also have a 30 seconds count down from engine failure detection for relight.

[MD83FO]

The NTSB issued safety recommendation A-02-006

the item reads "acceptable alternate action" but i cant find that action.

http://www.ntsb.gov/_layouts/ntsb.re...x?Rec=A-02-006

[vilas]

Airbus changed the method of setting from NU/DN to % MAC that must be the AAA.

[tubby linton]

I remember an old fleet manager's notice summarising a foreign incident of miss-set trim. The advice was "anywhere in the green band and it will fly"

[MD83FO]

Hi vilas, SOP still states on FMGC cockpit preparation to insert flaps and THS on takeoff perf page,
the on after start it states "Pith trim hand whell set takeoff CG", rendering the THS units previously set useless. I feel we shouldnt be given those units nor should they be set

[vilas]

MD
Yes. At the moment the MCDU software requires NU/DN input. But after start you set % on the wheel which you can convert from NU/DN to %.Also in A320 it is only as a reminder doesn't give warning. Therefore some airlines after start just take it from Fuel Pred page and set it.

[Capt Scribble]

If you mis set the ZfwCoG on the init page, but then set the correctly calculated trim setting, you will get the warning.