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|
Attributes | |
ACN | 249648 |
Time | |
Date | 199308 |
Day | Mon |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : den |
State Reference | CO |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | VMC |
Light | Daylight |
Aircraft 1 | |
Operator | common carrier : air carrier |
Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
Navigation In Use | Other |
Flight Phase | climbout : takeoff |
Flight Plan | IFR |
Person 1 | |
Affiliation | company : air carrier |
Function | flight crew : captain oversight : pic |
Qualification | pilot : atp |
Experience | flight time last 90 days : 120 flight time total : 20000 flight time type : 420 |
ASRS Report | 249648 |
Person 2 | |
Affiliation | company : air carrier |
Function | flight crew : first officer |
Qualification | pilot : atp pilot : commercial pilot : instrument |
Events | |
Anomaly | aircraft equipment problem : less severe |
Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
Resolutory Action | none taken : anomaly accepted |
Consequence | Other |
Supplementary | |
Primary Problem | Aircraft |
Air Traffic Incident | other |
Narrative:
Our takeoff at den was planned at 376000 pounds, temperature 81 degrees F and N1 maximum of 105.3. After receiving our final weight, we were advised our actual weight was 361000 pounds. Also, the last temperature we received was 76 degrees F. We adjusted our v-spds but decided to use the same takeoff power. It was the first officer's leg and he set takeoff power as we began our takeoff roll. As I took the throttles I noticed the egt on all engines was in the yellow band (caution) and still increasing. I made a slight adjustment, the egt's settled into the 910-915 range. Every time I attempted to set takeoff power, the egt would increase. Our normal or reduced N1 setting was 104.5 and in one case the N1 setting for 1 engine settled in at less than 104.5. The so advised me of this later when we discussed the flight. The acceleration felt normal and taking into account the much lower weight of the aircraft I did not think an abort was necessary. I have a suspicion the runway temperature was higher than the 76 degrees that was advertised. It would be nice if pilots could receive runway temperatures.
Original NASA ASRS Text
Title: WDB HAS HIGH EGT READINGS ON TKOF ROLL, UNABLE TO ADJUST CORRECTLY.
Narrative: OUR TKOF AT DEN WAS PLANNED AT 376000 LBS, TEMP 81 DEGS F AND N1 MAX OF 105.3. AFTER RECEIVING OUR FINAL WT, WE WERE ADVISED OUR ACTUAL WT WAS 361000 LBS. ALSO, THE LAST TEMP WE RECEIVED WAS 76 DEGS F. WE ADJUSTED OUR V-SPDS BUT DECIDED TO USE THE SAME TKOF PWR. IT WAS THE FO'S LEG AND HE SET TKOF PWR AS WE BEGAN OUR TKOF ROLL. AS I TOOK THE THROTTLES I NOTICED THE EGT ON ALL ENGS WAS IN THE YELLOW BAND (CAUTION) AND STILL INCREASING. I MADE A SLIGHT ADJUSTMENT, THE EGT'S SETTLED INTO THE 910-915 RANGE. EVERY TIME I ATTEMPTED TO SET TKOF PWR, THE EGT WOULD INCREASE. OUR NORMAL OR REDUCED N1 SETTING WAS 104.5 AND IN ONE CASE THE N1 SETTING FOR 1 ENG SETTLED IN AT LESS THAN 104.5. THE SO ADVISED ME OF THIS LATER WHEN WE DISCUSSED THE FLT. THE ACCELERATION FELT NORMAL AND TAKING INTO ACCOUNT THE MUCH LOWER WT OF THE ACFT I DID NOT THINK AN ABORT WAS NECESSARY. I HAVE A SUSPICION THE RWY TEMP WAS HIGHER THAN THE 76 DEGS THAT WAS ADVERTISED. IT WOULD BE NICE IF PLTS COULD RECEIVE RWY TEMPS.
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.