Hello Pilots,

 

I don't know what happen in the real world of the aviation. But I would like to know what we can do when we lost both or one IRS signal. There is a way to re-align it during the flight or what is the procedure in case of that happen ?

Thanks for help.
Ben

If either Nav receiver fails, the VHF NAV transfer switch may be used to display the functioning Nav information onto both EFIS and RDMI’s. With Nav transferred, the MCP course selector on the serviceable side becomes the master, but all other EFIS selections remain independent.

If an IRS fails, the IRS transfer switch is used to switch all associated systems to the functioning IRS.

 

The navigation and position idendification systems on the NG are highly redundant. The FMS on the NG is capable to compute a more or less accurate position using various navaids or other resources. 

Thanks for this clear explanation, I will try that.

There's a checklist to realign the IRS.

Matt: will that be able to ragain all functionality? I was only ever told to go to ATT mode if possible.

Matt: will that be able to ragain all functionality? I was only ever told to go to ATT mode if possible.

No, I don't think you'll get all functionality, but you can get the display back and probably independent heading and attitude info.

There's a checklist to realign the IRS.

Where can I find it ?

Where can I find it ?

 

In the QRH, where all checklists are. 

In the QRH, where all checklists are. 

 

What???  Manuals have useful info in them???

 

 

What???  Manuals have useful info in them???

 

I know, right? There was this guy once, and he had this big books and I was like "Whoa!" when he told me there was useful stuff in there! I always figured they were ballast for W&B!