B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Provided Assistance; Flight Crew Landed in Emergency Condition; General Flight Cancelled / Delayed; General Maintenance Action
Aircraft
At a cruise altitude of FL370; the Captain noticed the ALTN light illuminated near the right engine Electronic Engine Control (EEC) switch on the overhead panel. There was no associated EICAS message nor did the autothrottle disconnect with the apparent mode switch of the EEC. The crew discussed the indications and followed QRH procedures. During the subsequent descent in a busy ATC environment; the right engine primary indications (N1 and EGT) began fluxing rapidly and the right engine secondary indications (N2 and FF) increased toward the upper limitations of the normal operating ranges. At approximately 12;500 ft MSL; the thrust generated by the right engine with the throttle at idle prevented further descent and began impacting aircraft controllability. With no further relief available via the QRH and aircraft fuel state an increasing concern; the crew coordinated with ZZZ approach to receive a block altitude assignment and shut down the right engine in accordance with the QRH. Approach Control then vectored the aircraft in IMC conditions (rain showers) for an ILS to runway 8R. Before the malfunction and engine shutdown; the crew had planned for an RNAV GPS approach to runway 8L.
B767-300 flight crew reported an inflight engine shut down and immediate landing after the right engine EEC failed.