IRS Blinking

[Guest Ralph]

Hi,I just get the MD 11 and i work out the tutorial and i have a problem. When i make a turn the hdg on the cockpit is not chaning but i am turning.Also i get messages that the IRU 2, AUX, 1 no ALIGN what i do wrong?Regards,Ralph

[downscc 1,327]

It's been awhile since I tried the tutoria, but I'll give this a try.Your HDG window should be blank if you are in A/P autoflight. Look at the indications in the top of the PFD, it tells you what mode you are in for Speed/Nav/Altitude.The tutorial panel state starts in a turnaround state I think. This means you have power and the IRS are aligned. If you have an IRS alarm then maybe you didn't load the tutorial panel state. Regardless, you can set the IRS when parked (no movement) by turning them off then on and waiting (I don't have a copy of manual at work so I am missing the exact switch setting names but it is in the manual). I set the IRS align time in the options to 10 sec.

[Guest Ralph]

the problem is not be solved. I still get the message IRU 1 NO ALIGNIRU AUX NO ALIGNIRU 2 NO ALIGNSo my auto pilot is still not working and i do not know what i am doing wrong.Regards,Ralph

[mfrantz 45]

the problem is not be solved. I still get the message IRU 1 NO ALIGNIRU AUX NO ALIGNIRU 2 NO ALIGNSo my auto pilot is still not working and i do not know what i am doing wrong.Regards,Ralph

Ralph, The IRUs take about 10 minutes to align (this time is realistic but it can be changed from the MPDG menu options if you don't want to wait that long). During align time the aircraft should not move otherwise alignment fails and you get the messages you reported. My guess is you started pushback before the IRUs were aligned. If this happnes you should turn all the IRS knobs to off, turn them again to NAV and wait without moving until the IRUs are properly aligned. During that time "NO TAXI" is displayed on the bottom of the PFD speed tape. When this changes to "TAXI" you can move.

[Guest Ralph]

Hi,No i didn't start the pushback before allign. I wait about 10 minutes and do not move the aircraft. I directly get those messages.RegardsRalph

[downscc 1,327]

Try instant align time... see if problem changes.

[Guest Ralph]

Hi,I try and it is still blinking.... i started the pusback and the HDG is also not changing when i am moving the aircraft to the left and to the right. I set the align mode tot 15 seconds without any result.RegardsRalph

[Mace 1,896]

Hi,I try and it is still blinking.... i started the pusback and the HDG is also not changing when i am moving the aircraft to the left and to the right. I set the align mode tot 15 seconds without any result.RegardsRalph

Did you load the "Tutorial" Panel State? If you follow the tutorial without loading the Tutorial panel state, I can see how things could get scrambled.

[mburkhard 23]

Ralph,if you were not moving at all, confirm you did press the 'INITIALIZE IRS' prompt on the F-PLN init page?Regards,Markus

[Guest Ralph]

Hi,No i did not. I switch the 3 irs buttons to on and that is it... so i need to press the align IRS in the fl-page?regardsRalph

[Gavin 99]

Hi,No i did not. I switch the 3 irs buttons to on and that is it... so i need to press the align IRS in the fl-page?regardsRalph

Yes.