B737 Undifferentiated or Other Model
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 225; Flight Crew Total 3608; Flight Crew Type 3608
Situational Awareness; Troubleshooting
Aircraft Equipment Problem Less Severe
Flight Crew Requested ATC Assistance / Clarification; Flight Crew Landed in Emergency Condition
Aircraft
After departure out of ZZZZ and climbing through approximately 15;000 feet; the First Officer; as the Pilot Flying; attempted to engage the autopilot. He was unsuccessful in his attempts to engage either autopilot. We coordinated to remain out of RVSM airspace and stabilized the aircraft situation to include PF duties and backup monitoring. Myself; as the Pilot Monitoring; troubleshot and coordinated with ATC; Dispatch; and Maintenance. After concluding the troubleshooting phase; it was determined that we would not recover any autopilot for the 5:30 min flight. Additionally we would not have enough gas to go to ZZZ. After coordination with the Company; ZZZ1 was determined to be the best diversion point. When entering Center airspace; we [advised ATC] due to the increased traffic volume and the more dynamic flying environment of the descent and approach phase; particularly after a fatiguing 4 hours of hand flying and troubleshooting and diversion coordination. An uneventful landing followed and Maintenance took the aircraft to the hangar to fix a hard wire issue.
Air carrier pilot reported both autopilots malfunctioned and they had to hand fly an international long distance flight and divert to a closer airport.