An MD80S in cruise at FL310 declared an emergency and diverted due to #2 engine loss of power and co...

Attributes
ACN	425804
Time
Date	199901
Day	Thu
Local Time Of Day	1801 To 2400
Place
Locale Reference	atc facility : mqp
State Reference	TX
Altitude	msl bound lower : 31000 msl bound upper : 31000
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	MD-80 Super 80
Flight Phase	cruise other other other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	425804
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	other
Consequence	other Other

Narrative:

At FL310 had 3 loud compressor stalls, then loss of power. Declared emergency and request vectors towards dfw. Performed abnormal and normal checklist. Briefed flight attendant and passenger. Decided to let right engine to remain at idle since oil pressure, temperatures, N1, N2 and oil qty good, but engine failed to respond to throttle. Requested crash fire rescue equipment equipment, at landing no additional abnormalities. Callback conversation with reporter revealed the following information: the reporter stated the engine was a P&west JT8D-217 and had 6 compressor blades fail damaging the interior of the engine. The reporter said the engine indications were normal at idle power so the engine was left to operate in idle supplying electrical and hydraulic power. The reporter said the WX was clear and no icing present.

Original NASA ASRS Text

Title: AN MD80S IN CRUISE AT FL310 DECLARED AN EMER AND DIVERTED DUE TO #2 ENG LOSS OF PWR AND COMPRESSOR STALLS CAUSED BY COMPRESSOR BLADE FAILURE.

Narrative: AT FL310 HAD 3 LOUD COMPRESSOR STALLS, THEN LOSS OF PWR. DECLARED EMER AND REQUEST VECTORS TOWARDS DFW. PERFORMED ABNORMAL AND NORMAL CHKLIST. BRIEFED FLT ATTENDANT AND PAX. DECIDED TO LET R ENG TO REMAIN AT IDLE SINCE OIL PRESSURE, TEMPS, N1, N2 AND OIL QTY GOOD, BUT ENG FAILED TO RESPOND TO THROTTLE. REQUESTED CFR EQUIP, AT LNDG NO ADDITIONAL ABNORMALITIES. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ENG WAS A P&W JT8D-217 AND HAD 6 COMPRESSOR BLADES FAIL DAMAGING THE INTERIOR OF THE ENG. THE RPTR SAID THE ENG INDICATIONS WERE NORMAL AT IDLE PWR SO THE ENG WAS LEFT TO OPERATE IN IDLE SUPPLYING ELECTRICAL AND HYD PWR. THE RPTR SAID THE WX WAS CLR AND NO ICING PRESENT.

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.

An MD80S in cruise at FL310 declared an emergency and diverted due to #2 engine loss of power and compressor stalls caused by compressor blade failure.