MD-11
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Troubleshooting
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Returned To Departure Airport; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Overcame Equipment Problem; Flight Crew Inflight Shutdown; Flight Crew Took Evasive Action; General Maintenance Action; General Flight Cancelled / Delayed
Aircraft
Passing 10;000 feet we received a red U/L (Un Locked) reverser light; accompanied with a significant vibration on the number one engine. We shut down the engine in accordance with the QRH. We requested priority handling with ZZZ Center and notified Dispatcher of our intentions to return to ZZZZ. After completing all checklists and briefings we completed an uneventful auto land to [Runway] XXR. Maintenance inspection showed the reverser was partially cracked open (deployed). After landing the red U/L light turned yellow; and stayed on through shutdown. No fuel dump required.
Passing 10;000 feet we received a red U/L reverser light; accompanied with significant vibration on the number one engine. We shut the engine down in accordance with the QRH. We requested priority handling with ZZZ Center. We notified company operations of our intentions to return to ZZZ.  After completing all checklists and briefings we completed an uneventful auto land to runway XXR. Maintenance inspection showed the reverser was partially cracked open (deployed). After landing the red U/L light turned yellow; and stayed on through shutdown. No fuel dump required.
MD-11 flight crew reported an engine reverser unlocked light on climbout. The flight crew performed an in flight shut down and air turn back. They requested priority handling and made a precautionary landing at departure airport.