gunpowerplod
I flew a certain kind of jet that needed certain temps to calculate takeoff EPR.
RAT probe was heated IN THE AIR to avoid icing.
BUT on the ground the calculated EPR was a nutty value...oops, the plane "THOUGHT" it was in the air and was heating the RAT probe.
Investigated and the OVER RIDE for the landing gear handle thought it was in the air too.
Called MX and fixed the problem
CAN YOU IMAGINE how dependent we have become on computers to do things, and THUS when a NUTTY value comes along the COMPUTER BELIEVES IT AND THEN GIVES UP>
Maybe you flew through an area of extreme temp change...OR MAYBE your computer goofed.
EITHER WAY I WISH we had a "STEAM GAUGE" backup of large enough size
to allow for vibrating eyeballs.