<< >> NASA ASRS Report 194915, November 1991

Commuter light transport lost engine oil quantity and had fluctuating oil pressure at cruise altitude so diverted to alternate.

Attributes
ACN	194915
Time
Date	199111
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : sey
State Reference	RI
Altitude	msl bound lower : 17000 msl bound upper : 17000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zny
Operator	common carrier : air carrier
Make Model Name	Light Transport, Low Wing, 2 Turboprop Eng
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : instrument pilot : atp pilot : cfi pilot : commercial
Experience	flight time last 90 days : 150 flight time total : 10000 flight time type : 1500
ASRS Report	194915
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Experience	flight time last 90 days : 200 flight time total : 8500 flight time type : 500
ASRS Report	195160
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem flight crew : declared emergency other
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

After approximately 10 mins at cruise, left engine began to show signs of oil loss. I declared an emergency, had the first officer brief the passenger and flight attendant, and then made a normal landing with the left engine at flight idle. After inspection and consultation with the engine manufacturer oil was added and the aircraft was flown back to base for further repair.

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Original NASA ASRS Text

Title: COMMUTER LTT LOST ENG OIL QUANTITY AND HAD FLUCTUATING OIL PRESSURE AT CRUISE ALT SO DIVERTED TO ALTERNATE.

Narrative: AFTER APPROX 10 MINS AT CRUISE, L ENG BEGAN TO SHOW SIGNS OF OIL LOSS. I DECLARED AN EMER, HAD THE FO BRIEF THE PAX AND FLT ATTENDANT, AND THEN MADE A NORMAL LNDG WITH THE L ENG AT FLT IDLE. AFTER INSPECTION AND CONSULTATION WITH THE ENG MANUFACTURER OIL WAS ADDED AND THE ACFT WAS FLOWN BACK TO BASE FOR FURTHER REPAIR.

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.