IRS alignment on Airbus

[captain_jeeves]

Originally Posted by gearpins

I seek clarification with respect to the above statement......why not with FMS2 ?????

Reference was the airbus A319, A320, A321 FCTM and FCOM.

[gearpins]

sorry to go on oabout this.... but the 319/320 fcoms we have make no mention of it and t/o update always happens ...

[captain_jeeves]

Originally Posted by gearpins

sorry to go on oabout this.... but the 319/320 fcoms we have make no mention of it and t/o update always happens ...

See the Airbus Flight Crew Training Manual (FCTM).

Section= Supplementary Information - Navigation Accuracy
Page 04.030 (Effective Date July 2005)

[gearpins]

sorry about that....... . My company uses a tailor made fctm ....and thanks to this thread managed to lay my hands on the orignal... . realised my ignorance.........

[FlapsOne]

FCOM 1.22.20

Quote
The FM position update at takeoff is inhibited when GPS PRIMARY is active
Unquote

[Dream Land]

realised my ignorance

You're not alone.