A B737-300 crew conducted a precautionary landing for an egt overtemp indication.

Attributes
ACN	633742
Time
Date	200410
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : mci.airport
State Reference	KS
Altitude	msl single value : 26000
Environment
Flight Conditions	VMC
Aircraft 1
Controlling Facilities	artcc : zkc.artcc tower : sna.tower
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	cruise : level
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 180 flight time type : 14000
ASRS Report	633742
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 200 flight time total : 15000 flight time type : 4627
ASRS Report	633884
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	aircraft equipment other aircraft equipment : egt high temp
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

While en route, left engine egt spiked. Called dispatch and maintenance. Referred to checklist and exercised captain's emergency authority/authorized. Decision made to divert to ZZZ. Landed safely, no injuries and no damage. Plane has a history of false egt indications. All parties involved decided to divert to play it safe.

Original NASA ASRS Text

Title: A B737-300 CREW CONDUCTED A PRECAUTIONARY LNDG FOR AN EGT OVERTEMP INDICATION.

Narrative: WHILE ENRTE, L ENG EGT SPIKED. CALLED DISPATCH AND MAINT. REFERRED TO CHKLIST AND EXERCISED CAPT'S EMER AUTH. DECISION MADE TO DIVERT TO ZZZ. LANDED SAFELY, NO INJURIES AND NO DAMAGE. PLANE HAS A HISTORY OF FALSE EGT INDICATIONS. ALL PARTIES INVOLVED DECIDED TO DIVERT TO PLAY IT SAFE.

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.