A B727-200 in cruise at FL350 had the #3 engine oil temperature indicator fail with the fuel heat valve open. Engine operated at reduced power and fuel heat light went out.

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Attributes
ACN	419526
Time
Date	199811
Day	Wed
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : iah
State Reference	TX
Altitude	msl bound lower : 35000 msl bound upper : 35000
Environment
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : mmia
Operator	common carrier : air carrier
Make Model Name	B727-200
Operating Under FAR Part	Part 121
Flight Phase	cruise other
Route In Use	enroute : other oceanic enroute airway : mmia
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : instrument pilot : commercial
ASRS Report	419526
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

FL350 near marte, #3 oil temperature gauge failed and #3 fuel heat valve light on. Executed abnormals without success. Reduced power on #3 engine and fuel heat light went out. Requested direct iah for possible divert. Approaching iah, fuel calculated enough to get to dfw. Landed dfw without problems.

Original NASA ASRS Text

Title: A B727-200 IN CRUISE AT FL350 HAD THE #3 ENG OIL TEMP INDICATOR FAIL WITH THE FUEL HEAT VALVE OPEN. ENG OPERATED AT REDUCED PWR AND FUEL HEAT LIGHT WENT OUT.

Narrative: FL350 NEAR MARTE, #3 OIL TEMP GAUGE FAILED AND #3 FUEL HEAT VALVE LIGHT ON. EXECUTED ABNORMALS WITHOUT SUCCESS. REDUCED PWR ON #3 ENG AND FUEL HEAT LIGHT WENT OUT. REQUESTED DIRECT IAH FOR POSSIBLE DIVERT. APCHING IAH, FUEL CALCULATED ENOUGH TO GET TO DFW. LANDED DFW WITHOUT 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.