Aircraft equipment problem. Oil filter bypass light illuminated. Oil temperature climbed, but remained within limits. Flight crew diverted and landed uneventfully.

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Attributes
ACN	358702
Time
Date	199701
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : oma
State Reference	NE
Altitude	msl bound lower : 37000 msl bound upper : 37000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zmp
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Navigation In Use	Other Other
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 40 flight time total : 3500 flight time type : 900
ASRS Report	358702
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable
Consequence	Other
Supplementary
Primary Problem	Aircraft

Narrative:

In cruise at FL370, the right engine oil filter bypass light flickered for a min and then illuminated steady. We asked for and were given a lower altitude (FL330) and followed the irregular procedure for this occurrence. The light stayed on with the right throttle at idle and oil temperature climbed to 105 degrees (still well within limits). We left the right engine running and diverted to omaha. (We were en route denver to laguardia.) we consulted the company and landed uneventfully on runway 32L at omaha using single engine procedures.

Original NASA ASRS Text

Title: ACFT EQUIP PROB. OIL FILTER BYPASS LIGHT ILLUMINATED. OIL TEMP CLBED, BUT REMAINED WITHIN LIMITS. FLC DIVERTED AND LANDED UNEVENTFULLY.

Narrative: IN CRUISE AT FL370, THE R ENG OIL FILTER BYPASS LIGHT FLICKERED FOR A MIN AND THEN ILLUMINATED STEADY. WE ASKED FOR AND WERE GIVEN A LOWER ALT (FL330) AND FOLLOWED THE IRREGULAR PROC FOR THIS OCCURRENCE. THE LIGHT STAYED ON WITH THE R THROTTLE AT IDLE AND OIL TEMP CLBED TO 105 DEGS (STILL WELL WITHIN LIMITS). WE LEFT THE R ENG RUNNING AND DIVERTED TO OMAHA. (WE WERE ENRTE DENVER TO LAGUARDIA.) WE CONSULTED THE COMPANY AND LANDED UNEVENTFULLY ON RWY 32L AT OMAHA USING SINGLE ENG PROCS.

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.