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A B747 on takeoff from hnl reported that on initial climb, the electronic egt indicated that maximum egt had been exceeded for 3 seconds.
| Attributes | |
| ACN | 377450 |
| Time | |
| Date | 199708 |
| Day | Mon |
| Local Time Of Day | 0001 To 0600 |
| Place | |
| Locale Reference | atc facility : hnl |
| State Reference | HI |
| Altitude | msl bound lower : 0 msl bound upper : 1000 |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Controlling Facilities | tower : hnl artcc : zdv |
| Operator | common carrier : air carrier |
| Make Model Name | B747 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | climbout : takeoff climbout : initial |
| Route In Use | departure sid : sid |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : cfi pilot : atp pilot : instrument |
| Experience | flight time last 90 days : 100 flight time total : 9200 flight time type : 3000 |
| ASRS Report | 377450 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : commercial pilot : instrument |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Aircraft |
| Air Traffic Incident | other |
Narrative:
Engine had a history of producing higher than target egt on takeoff. Target egt was about 30 degrees C under limit for takeoff. After takeoff we noticed that electronic egt had recorded an 'event.' we had exceeded maximum egt at some point during takeoff for 3 seconds. This engine with its history should never have left our maintenance base.
Original NASA ASRS Text
Title: A B747 ON TKOF FROM HNL REPORTED THAT ON INITIAL CLB, THE ELECTRONIC EGT INDICATED THAT MAX EGT HAD BEEN EXCEEDED FOR 3 SECONDS.
Narrative: ENG HAD A HISTORY OF PRODUCING HIGHER THAN TARGET EGT ON TKOF. TARGET EGT WAS ABOUT 30 DEGS C UNDER LIMIT FOR TKOF. AFTER TKOF WE NOTICED THAT ELECTRONIC EGT HAD RECORDED AN 'EVENT.' WE HAD EXCEEDED MAX EGT AT SOME POINT DURING TKOF FOR 3 SECONDS. THIS ENG WITH ITS HISTORY SHOULD NEVER HAVE LEFT OUR MAINT BASE.
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.