btscott wrote on Aug 7^th, 2015 at 3:34pm:

I replaced the 2.6 system gauge with the one from 2010 that was supposed to fix the pitch control back then and it did fix the flaps indicator, but broke the altimeter. The altimeter stays at 000000 Captain_Sim.p721.sys.gau ‎November ‎17, ‎2010, ‏‎9:18:54 AM Bruce

FlavioSSA wrote on Jul 21^st, 2015 at 11:56pm:

mark767 wrote on Jul 19th, 2015 at 10:20pm: I cannot get the flaps gauge to work.  The flap lever moves, the flaps themselves move but the gauge stays in the "up" position.  Anyone else have this issue. For the guys with the "flap issue", just goes in the engineer panel and turn on electrical feed to engine1. The flap gauge will work after that.

Did you try this recommendation from user Flavio?