RE GUMS 1233 cable/mechanical connection of trim wheel with styab ..
This SLF happend via google to find this link FWIW re 737 NG
https://www.slideshare.net/theoryce/...light-controls
Which in part says ( emphasis added )
- 4. Fully powered rudder Hydraulic systems A-B and Stby. No tab Power assisted Elevators Hydraulic systems A and B Manual reversion Aerodynamic balance tab. Power assisted Ailerons. Hydraulic systems A and B. Manual reversion Aerodynamic balance tab. Primary Flight Controls
- 5. Movable horizontal stabiliser powered by an electric motor for manual trim or by the Autopilot. Manual via cables from the trim wheels in the cockpit. Four flight spoilers on each wing symmetrical pairs powered by hydraulic systems A and B Secondary Flight Controls Inboard and outboard double slotted T.E Flaps Normally Hydraulic system B Alternate Electric motor Outboard and Inboard spoilers Ground only Hydraulic system A 4 slats on each wing . Hydraulic system B Normal Standby Hydraulic Alternate 2 Krueger flaps On each wing inboard of the engines move with the slats