<< >> NASA ASRS Report 528841, October 2001

A B737-200 on takeoff at 300 ft AGL declared an emergency and diverted due to right engine compressor stall, vibration and shudder. Caused by engine ingestion of plastic paper bundle straps.

Attributes
ACN	528841
Time
Date	200110
Day	Wed
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zan.airport
State Reference	AK
Altitude	agl single value : 300
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Controlling Facilities	artcc : zan.artcc
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : takeoff
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : multi engine pilot : commercial pilot : flight engineer pilot : instrument pilot : atp
Experience	flight time last 90 days : 70 flight time total : 10000 flight time type : 8000
ASRS Report	528841
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp pilot : commercial pilot : instrument pilot : multi engine
Experience	flight time last 90 days : 200 flight time total : 3000 flight time type : 400
ASRS Report	528842
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : diverted to another airport
Consequence	other other
Supplementary
Problem Areas	Aircraft Airport Environmental Factor
Primary Problem	Aircraft

Narrative:

Immediately departing ome and upon retracting the landing gear, a loud bang was heard, followed by aircraft shudder. Approximately 20 seconds later another loud bang and shudder. The aircraft was manually depressurized, an emergency declared, flight attendants briefed. All engine instruments checked normal throughout problem. Suspected tire failure. Upon arrival back in ome, fire crews found no tire problems. After shutdown, maintenance found damaged blades in #2 engine. Callback conversation with reporter revealed the following information: the reporter stated when back on the ground and when checking the engine maintenance found newspaper bundle plastic straps wound up in the fan blades. The reporter said the first 2 fan stages had bent and nicked blades. The reporter stated the engine blades were later cropped and the airplane was maintenance ferried for blade or engine replacement.

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Original NASA ASRS Text

Title: A B737-200 ON TKOF AT 300 FT AGL DECLARED AN EMER AND DIVERTED DUE TO R ENG COMPRESSOR STALL, VIBRATION AND SHUDDER. CAUSED BY ENG INGESTION OF PLASTIC PAPER BUNDLE STRAPS.

Narrative: IMMEDIATELY DEPARTING OME AND UPON RETRACTING THE LNDG GEAR, A LOUD BANG WAS HEARD, FOLLOWED BY ACFT SHUDDER. APPROX 20 SECONDS LATER ANOTHER LOUD BANG AND SHUDDER. THE ACFT WAS MANUALLY DEPRESSURIZED, AN EMER DECLARED, FLT ATTENDANTS BRIEFED. ALL ENG INSTS CHKED NORMAL THROUGHOUT PROB. SUSPECTED TIRE FAILURE. UPON ARR BACK IN OME, FIRE CREWS FOUND NO TIRE PROBS. AFTER SHUTDOWN, MAINT FOUND DAMAGED BLADES IN #2 ENG. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED WHEN BACK ON THE GND AND WHEN CHKING THE ENG MAINT FOUND NEWSPAPER BUNDLE PLASTIC STRAPS WOUND UP IN THE FAN BLADES. THE RPTR SAID THE FIRST 2 FAN STAGES HAD BENT AND NICKED BLADES. THE RPTR STATED THE ENG BLADES WERE LATER CROPPED AND THE AIRPLANE WAS MAINT FERRIED FOR BLADE OR ENG REPLACEMENT.

Data retrieved from NASA's ASRS site as of July 2007 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.