B757 flight crew has an engine malfunction; declares emergency and diverts for landing.

Attributes
ACN	717260
Time
Date	200611
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : zzz.artcc
State Reference	US
Altitude	msl single value : 26000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	artcc : zzz.artcc tower : mmmx.tower
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	717260
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
ASRS Report	717261
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	aircraft equipment other aircraft equipment : eicas warning other flight crewa other flight crewb
Resolutory Action	flight crew : diverted to another airport flight crew : landed as precaution flight crew : declared emergency
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

We were climbing through FL240 when the left engine egt went into the amber band for approximately 2 seconds. The left N1; N2; and N3 also surged to follow the egt. This condition continued 4 more times while climbing through FL260. We declared an emergency and completed the engine overheat checklist. We also completed the overweight checklist; en route to ZZZ2. Touchdown was smooth and at a speed of 141 KTS. The vsi was approximately 400 ft. All engine indications were normal during descent; approach; and landing. Taxi back to gate was uneventful.

Original NASA ASRS Text

Title: B757 FLT CREW HAS AN ENG MALFUNCTION; DECLARES EMER AND DIVERTS FOR LNDG.

Narrative: WE WERE CLBING THROUGH FL240 WHEN THE L ENG EGT WENT INTO THE AMBER BAND FOR APPROX 2 SECONDS. THE L N1; N2; AND N3 ALSO SURGED TO FOLLOW THE EGT. THIS CONDITION CONTINUED 4 MORE TIMES WHILE CLBING THROUGH FL260. WE DECLARED AN EMER AND COMPLETED THE ENG OVERHEAT CHKLIST. WE ALSO COMPLETED THE OVERWT CHKLIST; ENRTE TO ZZZ2. TOUCHDOWN WAS SMOOTH AND AT A SPD OF 141 KTS. THE VSI WAS APPROX 400 FT. ALL ENG INDICATIONS WERE NORMAL DURING DSCNT; APCH; AND LNDG. TAXI BACK TO GATE WAS UNEVENTFUL.

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.