A B757-200 left engine overheat EICAS and master caution alerted. The light extinguished and the crew declared an emergency. The flight return to land at departure airport.

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Attributes
ACN	746314
Time
Date	200707
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	msl single value : 20000
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
ASRS Report	746314
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	746316
Events
Anomaly	other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : eicas
Resolutory Action	flight crew : landed as precaution other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

Climbing through FL200; left engine overheat EICAS message; master caution light and discrete left engine overheat light came on. Following procedures; we slowly closed the left throttle to idle. After some mins and just prior to the procedure to shut down the left engine; the light went out; so we kept the engine running at idle. Declared an emergency and returned to ZZZ for a normal overweight landing. After landing; crash fire rescue equipment checked the aircraft out and followed us to the gate.

Original NASA ASRS Text

Title: A B757-200 LEFT ENG OVERHEAT EICAS AND MASTER CAUTION ALERTED. THE LIGHT EXTINGUISHED AND THE CREW DECLARED AN EMER. THE FLT RETURN TO LAND AT DEP ARPT.

Narrative: CLBING THROUGH FL200; L ENG OVERHEAT EICAS MESSAGE; MASTER CAUTION LIGHT AND DISCRETE L ENG OVERHEAT LIGHT CAME ON. FOLLOWING PROCS; WE SLOWLY CLOSED THE L THROTTLE TO IDLE. AFTER SOME MINS AND JUST PRIOR TO THE PROC TO SHUT DOWN THE L ENG; THE LIGHT WENT OUT; SO WE KEPT THE ENG RUNNING AT IDLE. DECLARED AN EMER AND RETURNED TO ZZZ FOR A NORMAL OVERWT LNDG. AFTER LNDG; CFR CHKED THE ACFT OUT AND FOLLOWED US TO THE GATE.

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.