<< >> NASA ASRS Report 499942, February 2001

A B737-200 in cruise at FL330 declared an emergency and diverted due to #2 engine surging with compressor stalls. Cause unknown.

Attributes
ACN	499942
Time
Date	200102
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : cae.airport
State Reference	SC
Altitude	msl single value : 33000
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zjx.artcc
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Navigation In Use	other ndb
Flight Phase	cruise : level
Route In Use	enroute airway : j75.airway
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 280 flight time total : 10000 flight time type : 2000
ASRS Report	499942
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : #2 engine indications other flight crewa other flight crewb
Resolutory Action	flight crew : declared emergency flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Environmental Factor Flight Crew Human Performance Aircraft
Primary Problem	Aircraft

Narrative:

At leveloff FL330 over cae VOR, we experienced an apparent compressor stall (loud and successive banging and surging from #2 engine). Noise stopped when throttle slightly reduced. We elected to declare an emergency and divert to land at clt. No further abnormal indications were observed.

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Original NASA ASRS Text

Title: A B737-200 IN CRUISE AT FL330 DECLARED AN EMER AND DIVERTED DUE TO #2 ENG SURGING WITH COMPRESSOR STALLS. CAUSE UNKNOWN.

Narrative: AT LEVELOFF FL330 OVER CAE VOR, WE EXPERIENCED AN APPARENT COMPRESSOR STALL (LOUD AND SUCCESSIVE BANGING AND SURGING FROM #2 ENG). NOISE STOPPED WHEN THROTTLE SLIGHTLY REDUCED. WE ELECTED TO DECLARE AN EMER AND DIVERT TO LAND AT CLT. NO FURTHER ABNORMAL INDICATIONS WERE OBSERVED.

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.