A B737-700 engine made a loud bang with vibrations after takeoff. Suspecting an engine stall the cre...

Narrative:

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.

Original NASA ASRS Text

Title: 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.

Narrative: 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.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1203638
Time
Date	201409
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737-700
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	Turbine Engine
Person 1
Function	Captain
Experience	Flight Crew Last 90 Days 147
Events
Anomaly	Aircraft Equipment Problem Critical

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.