B737-200ADV Pressurization probs
Hi folks.
One aircraft in our fleet has a problem. at TOC , when closing the thrust levers for descent the cabin starts climbing, and only starts to descend if some thrust is left on. This occurs throughout the descent and the cabin VSI needs to be monitored and the thrust modulated to achieve a cabin ROD.
Also, on the take off roll as thrust is applied, the cabin goes to about 3000 fpm ROD.
Any one have an idea of what causes this??
Cheers thanks again