A B737 flight crew did a precautionary engine shutdown due to loss of oil quantity.

Attributes
ACN	622211
Time
Date	200302
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zmp.artcc
State Reference	MN
Altitude	msl single value : 39000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp.artcc
Operator	common carrier : air carrier
Make Model Name	B737 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 4000 flight time total : 21000 flight time type : 235
ASRS Report	622211
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 press gage. other flight crewa other flight crewb
Resolutory Action	controller : issued new clearance controller : provided flight assist flight crew : diverted to another airport flight crew : took precautionary avoidance action other
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Engine #2 oil quantity was at 15%. It was at 87% when we left cle. The oil quantity went to zero. We were on the phone with dispatch and maintenance as this was happening. The oil pressure and temperature stayed normal for about 10 mins. The oil pressure started to fluctuate then, and the pressure started to go down. We decided to do a precautionary shutdown and go to oma. We went to oma. We did all the checklists and had no other problems.

Original NASA ASRS Text

Title: A B737 FLT CREW DID A PRECAUTIONARY ENG SHUTDOWN DUE TO LOSS OF OIL QUANTITY.

Narrative: ENG #2 OIL QUANTITY WAS AT 15%. IT WAS AT 87% WHEN WE LEFT CLE. THE OIL QUANTITY WENT TO ZERO. WE WERE ON THE PHONE WITH DISPATCH AND MAINT AS THIS WAS HAPPENING. THE OIL PRESSURE AND TEMP STAYED NORMAL FOR ABOUT 10 MINS. THE OIL PRESSURE STARTED TO FLUCTUATE THEN, AND THE PRESSURE STARTED TO GO DOWN. WE DECIDED TO DO A PRECAUTIONARY SHUTDOWN AND GO TO OMA. WE WENT TO OMA. WE DID ALL THE CHKLISTS AND HAD NO OTHER PROBS.

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.