<< >> NASA ASRS Report 657062, May 2005

An MD80 crew experienced decreasing left engine oil quantity; declared an emergency; and returned to the departure airport with the engine shut down.

Attributes
ACN	657062
Time
Date	200505
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 24000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc
Operator	common carrier : air carrier
Make Model Name	MD-80 Series (DC-9-80) Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	657062
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : oil quantity annunciation
Resolutory Action	flight crew : declared emergency flight crew : landed in emergency condition
Consequence	other
Supplementary
Problem Areas	Aircraft Maintenance Human Performance
Primary Problem	Aircraft

Narrative:

When it was apparent that we were going to shut down the left engine; I took control of the aircraft. About 20 mins from ZZZ1; the 'left oil pressure low' light came on. The oil pressure gauge was 30 psi; and the oil quantity was dropping. We accomplished the 'left or right press low light' procedure; then after the oil quantity went to zero; we accomplished the 'engine failure/in flight shutdown' checklist. We declared an emergency and returned to ZZZ1 for landing. We were overweight for landing (131.7). We completed the 'overweight landing' checklist along with the 'one engine landing' checklist. Due to the fact that we shut down the #1 engine and we were dispatched with the APU generator placarded (one generator operation) I exercised my captain's emergency authority per flight manual; and landed overweight. The inbound flight crew wrote up the left engine vibrated on shutdown. Maintenance signed it off as within specifications.

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Original NASA ASRS Text

Title: AN MD80 CREW EXPERIENCED DECREASING L ENG OIL QUANTITY; DECLARED AN EMER; AND RETURNED TO THE DEPARTURE ARPT WITH THE ENG SHUT DOWN.

Narrative: WHEN IT WAS APPARENT THAT WE WERE GOING TO SHUT DOWN THE L ENG; I TOOK CTL OF THE ACFT. ABOUT 20 MINS FROM ZZZ1; THE 'L OIL PRESSURE LOW' LIGHT CAME ON. THE OIL PRESSURE GAUGE WAS 30 PSI; AND THE OIL QUANTITY WAS DROPPING. WE ACCOMPLISHED THE 'L OR R PRESS LOW LIGHT' PROC; THEN AFTER THE OIL QUANTITY WENT TO ZERO; WE ACCOMPLISHED THE 'ENG FAILURE/IN FLT SHUTDOWN' CHKLIST. WE DECLARED AN EMER AND RETURNED TO ZZZ1 FOR LNDG. WE WERE OVERWEIGHT FOR LNDG (131.7). WE COMPLETED THE 'OVERWEIGHT LNDG' CHKLIST ALONG WITH THE 'ONE ENG LNDG' CHKLIST. DUE TO THE FACT THAT WE SHUT DOWN THE #1 ENG AND WE WERE DISPATCHED WITH THE APU GENERATOR PLACARDED (ONE GENERATOR OP) I EXERCISED MY CAPT'S EMER AUTHORITY PER FLT MANUAL; AND LANDED OVERWEIGHT. THE INBOUND FLT CREW WROTE UP THE L ENG VIBRATED ON SHUTDOWN. MAINT SIGNED IT OFF AS WITHIN SPECIFICATIONS.

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.