B737 Next Generation Undifferentiated
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 127; Flight Crew Total 7139; Flight Crew Type 5747
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Returned To Departure Airport; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
Right after takeoff we had multiple system failures; to include the A/T (Autothrottles); VNAV; the Captain's F/D (Flight Director); and the autopilot. We continued the departure and assessed the situation while I hand flew the airplane. I reselected the A/T and they stayed on until I noticed they were not at climb power; but had pulled back to approximately 80 percent. I turned off the auto throttles and pushed up the power; then gave the airplane to the FO (First Officer); whose navigation systems seemed to be working. I advised ATC we needed to return to ZZZ because of the problem. ATC eventually [provided priority handling] for us. While the FO was flying on autopilot I noticed the left engine only had been retarded to 70 percent by the A/T. We turned them back on seeing that everything on his side was working. At this point I took the airplane back and hand flew the plane with F/D; A/T and VNAV off. We were 20;000 lbs over weight so I flew a flaps 40 landing to lower the approach speed. I made a smooth landing and we required no further assistance. We made the appropriate log book entries.
B737 NG Captain reported an in-flight turnback after multiple system failures.