B737-500 returns to departure airport following severe damage to right engine on takeoff.

Attributes
ACN	718138
Time
Date	200611
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B737-500
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 140 flight time total : 6000 flight time type : 200
ASRS Report	718138
Person 2
Affiliation	company : air carrier
Function	flight crew : captain observation : company check pilot oversight : pic
Experience	flight time last 90 days : 180 flight time total : 16000 flight time type : 8400
ASRS Report	718251
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	other
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

Normal pushback and taxi. Upon rotation (captain flying) felt moderate airframe vibration. At power reduction; vibration dramatically decreased. It was determined the #2 engine was the source of the vibration and the engine severe damage qrc was accomplished and cabin preparation issued to the flight attendants. The engine was left at idle and a 15 degree flap approach was flown. Uneventful landing and the engine was shut down after the aircraft was stopped. Fire department inspected the aircraft and reported severe damage to #2 engine. Taxi back to gate and shutdown were normal. Supplemental information from acn 718251: as I rotated I saw something coming onto the runway.

Original NASA ASRS Text

Title: B737-500 RETURNS TO DEP ARPT FOLLOWING SEVERE DAMAGE TO R ENG ON TKOF.

Narrative: NORMAL PUSHBACK AND TAXI. UPON ROTATION (CAPT FLYING) FELT MODERATE AIRFRAME VIBRATION. AT PWR REDUCTION; VIBRATION DRAMATICALLY DECREASED. IT WAS DETERMINED THE #2 ENG WAS THE SOURCE OF THE VIBRATION AND THE ENG SEVERE DAMAGE QRC WAS ACCOMPLISHED AND CABIN PREPARATION ISSUED TO THE FLT ATTENDANTS. THE ENG WAS LEFT AT IDLE AND A 15 DEG FLAP APCH WAS FLOWN. UNEVENTFUL LNDG AND THE ENG WAS SHUT DOWN AFTER THE ACFT WAS STOPPED. FIRE DEPT INSPECTED THE ACFT AND RPTED SEVERE DAMAGE TO #2 ENG. TAXI BACK TO GATE AND SHUTDOWN WERE NORMAL. SUPPLEMENTAL INFO FROM ACN 718251: AS I ROTATED I SAW SOMETHING COMING ONTO THE RWY.

Data retrieved from NASA's ASRS site as of January 2009 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.