PPRuNe Forums - View Single Post - B737 NG PTU and LGTU

14th June 2005 | 17:10

#2 (permalink)

CaptainSandL

Joined: Nov 2003

Posts: 496

Likes: 12

From: UK

PTU: Pump is pressurised by system A but the fluid is still from B. So if you were to lose all B quantity the PTU would not work.

LGTU: Uses system B pressure and fluid.

S & L