During climb out after takeoff; an egt digital display blanked; the analog needle indicated over tem...

Attributes
ACN	789012
Time
Date	200805
Place
Locale Reference	airport : zzz.airport
State Reference	US
Aircraft 1
Controlling Facilities	tracon : zzz.tracon
Operator	common carrier : air carrier
Make Model Name	B737-300
Operating Under FAR Part	Part 121
Flight Phase	climbout : intermediate altitude
Route In Use	departure sid : n/s
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 208
ASRS Report	789012
Events
Anomaly	aircraft equipment problem : less severe
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

On climb out just after getting the aircraft cleaned up; I noticed the #2 egt digital display was blank; the analog needle pointer full maximum; and the overtemp red light was illuminated. I brought my first officer's attention to the gauge and he reduced the thrust all the way to idle with no change in egt indication. There were no unusual vibrations or any other abnormalities. As I was going through the QRH; the egt gauge started to give erratic indications. Then it would show normal indications. I felt it was an indication problem and did not shut the engine down because at this point; everything was indicating normal. I called dispatch and they got maintenance control on the line and I told them what it was doing and they said it was an indicator problem and to continue on to ZZZ. My first officer and I agreed and continued to ZZZ. There were no further problems and the flight was uneventful.

Original NASA ASRS Text

Title: DURING CLB OUT AFTER TKOF; AN EGT DIGITAL DISPLAY BLANKED; THE ANALOG NEEDLE INDICATED OVER TEMP ALONG WITH THE OVER TEMP LIGHT. THE GAUGE THEN ACTED ERRATICALLY. THE CREW ASSUMED GAUGE FAILURE AND CONTINUED NORMALLY.

Narrative: ON CLBOUT JUST AFTER GETTING THE ACFT CLEANED UP; I NOTICED THE #2 EGT DIGITAL DISPLAY WAS BLANK; THE ANALOG NEEDLE POINTER FULL MAX; AND THE OVERTEMP RED LIGHT WAS ILLUMINATED. I BROUGHT MY FO'S ATTN TO THE GAUGE AND HE REDUCED THE THRUST ALL THE WAY TO IDLE WITH NO CHANGE IN EGT INDICATION. THERE WERE NO UNUSUAL VIBRATIONS OR ANY OTHER ABNORMALITIES. AS I WAS GOING THROUGH THE QRH; THE EGT GAUGE STARTED TO GIVE ERRATIC INDICATIONS. THEN IT WOULD SHOW NORMAL INDICATIONS. I FELT IT WAS AN INDICATION PROB AND DID NOT SHUT THE ENG DOWN BECAUSE AT THIS POINT; EVERYTHING WAS INDICATING NORMAL. I CALLED DISPATCH AND THEY GOT MAINT CTL ON THE LINE AND I TOLD THEM WHAT IT WAS DOING AND THEY SAID IT WAS AN INDICATOR PROB AND TO CONTINUE ON TO ZZZ. MY FO AND I AGREED AND CONTINUED TO ZZZ. THERE WERE NO FURTHER PROBS AND THE FLT WAS UNEVENTFUL.

Data retrieved from NASA's ASRS site as of May 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.

During climb out after takeoff; an egt digital display blanked; the analog needle indicated over temperature along with the over temperature light. The gauge then acted erratically. The crew assumed gauge failure and continued normally.