May 26, 201511 yr Hello to everybody, I'm Flying with boeing 737 wilco (first version) no evolution, I'm having a problem, when I go online the reading altitude is not correct, I read Always negative value on the altimeter, so if I want read the correct altitude of the airport on the altimeter, I have to change the QNH so to reach the read the correct altitude of the airport Any suggestion??? I conferm you that with 737 ngx I don't have these problems thank you in advance Riccardo