Now, on the 707 there is a rudder power switch, right over the Captains head.
Is there a similar switch on the 737?
Same location but switches are for primary Flight Controls. (A & B)
I wonder if it is the same general rudder power system used on the 707.
I recall the 707 having a single hydraulic PCU. The 737 is fitted with a dual hydraulic (A & B system) PCU. The revised system has isolated A & B PCUs and a sense unit that monitors for ucommanded or jammed PCU outputs.
Boeing says 880 aircraft have been fitted with the "enhanced" rudder system, of which 681 were discovered to have been delivered with "suspect rods".
Ahh good old Flight International. Notice the items in quotations.
