Hi Folks, can anyone help explain this to me?
I recently had a situation on a 733 with FMS U10.5. After Takeoff (Hdg090) the Flight directors tried to take me off the SID, by turning right when the Sid was straight ahead, so after the normal wtf heading select made and SID flown manually.
Upon further investigation The Aircraft position was found to be 9w of our position. So it must have been finger trouble putting in the position by myself me thinks.
The thing that i can't understand, is having verified the position by stand, airfield details on the route section and watching ourselves taxi to the hold while on Map mode. The next time I looked after LNAV had been pressed we were heading East on the SID and the Aircraft wanted to turn south west.
So if the aircraft thought we were west of the first point on the SID why would it try to get us to fly South west?
As I say I'm putting my hands up to finger trouble but I can't understand why this most likely of scenarios would give the symptons I experienced.
I standby for your suggestions and ridicule.
