B737NG IRS Q's
Hi folks,
according to the manual, the IRS on the B737 NG has two electrical power sources:
the switched hot battery bus and the AC Stby Bus (IRS1) / Xfer Bus 2 (IRS2).
1) The right IRS will switch off 5 minutes if its AC power source fails. Will it also switch off if the left IRS is inop or not turned on?
2) Can you perform an IRS alignment using only the Switched Hot Battery Bus? If its possible, what will happen to IRS 2 after 5 minutes? Will it just stop alignment and turn off?
Thanks!
Mark