Flight Crew Last 90 Days 147
Situational Awareness; Troubleshooting; Workload
Aircraft Equipment Problem Critical
Flight Crew FLC complied w / Automation / Advisory; Flight Crew Landed in Emergency Condition; Flight Crew Returned To Departure Airport; Flight Crew Took Evasive Action; General Declared Emergency
Aircraft
After taking off at about 2000 FT; we heard a loud bang from the right side of the airplane and the number two engine started vibrating with no indication of an engine failure or fire. We started with the QRH High Engine Vibration Checklist (not in icing conditions); but we suspected a possible engine stall; so accomplished the QRH Engine Limit/Surge/Stall Checklist with power reduced; all engine indications normal. Due to unknown status of #2 engine; we declared an emergency and advised Tower we needed to return to the departure airport. Out of an abundance of caution; we elected to perform a flaps 15 landing and reviewed the One Engine Inop Landing Checklist; in case the engine failed on approach. Once we landed; the engine #2 fail light illuminated. I manually shut the #2 engine down while taxiing to the gate.
A B737-700 engine made a loud bang with vibrations after takeoff. Suspecting an engine stall the crew completed the QRH and returned to the departure airport where after landing the Number 2 Engine Fail light alerted.