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Forum: Tech Log

15th Feb 2018, 05:18

Replies: 6

747-400 Body Gear Steering and IRUs

Views: 2,218

Posted By NSEU

Agreed, but with IRSs off, the IRS LEFT Advisory...

Agreed, but with IRSs off, the IRS LEFT Advisory Message is removed (so the QRH statement is partially true). I even asked Boeing why BGS was still available with the IRUs off. They said it's just...

Forum: Tech Log

13th Feb 2018, 22:10

Replies: 6

747-400 Body Gear Steering and IRUs

Views: 2,218

Posted By NSEU

Not sure, McHale. QRHs and FCOMs are usually the...

Not sure, McHale. QRHs and FCOMs are usually the latest and greatest. My engineering notes are probably as old as the aircraft themselves. The QRH seems very specific in the wording (i.e. it actually...

Forum: Tech Log

12th Feb 2018, 23:30

Replies: 6

747-400 Body Gear Steering and IRUs

Views: 2,218

Posted By NSEU

747-400 Body Gear Steering and IRUs

One of the inputs into the Body Gear Steering System on the 747-400 is IRU groundspeed. However, there is ambiguous information on which IRUs are being used.

The groundspeed, wheelspeed and...

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