B737 Undifferentiated or Other Model
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 200
Distraction; Troubleshooting; Workload
Aircraft Equipment Problem Less Severe
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Landed As Precaution; General Maintenance Action
Aircraft
While in cruise descent from FL370 on arrival 90 miles outside of our destination airframe vibrated with no abnormal engine indications. Went to idle descent and airframe vibrations seized. When advancing thrust levers to cruise at FL300 airframe vibrated and engine indications were erratic. Reduced thrust on number 2 engine until vibrations seized and engine indications were normal. We ran the QRH Checklist for engine limit or surge or stall. With all indications normal elected to leave the engine running; ran one Engine Inoperative Checklist; and asked ATC for priority handling; weather and to have Fire and Rescue standing by. Notified Dispatch; destination Station Operations; Flight Attendants and Passengers of situation and planned to land the aircraft in our destination. Landed safely; shutdown engine when clear of runway and had the Fire Department inspect the engine. No abnormal indications made by Fire Department. Taxied the aircraft to the gate with no further incident. Contacted Dispatch; Maintenance Control; and Chief Pilot. Logbook entry was made for defect.
B737 Captain reported completing the QRH ENGINE LIMIT OR SURGE OR STALL Checklist after number 2 engine developed vibrations during descent.