 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
An MD88 returned to the departure airport when the left engine exceeded maximum egt limits late in the takeoff roll. An airline maintenance directive requiring flight crews to use maximum thrust settings for takeoff on specific aircraft likely aggravated the potential for an overtemp.
| Attributes | |
| ACN | 909665 |
| Time | |
| Date | 201009 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | MD-88 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Turbine Engine |
| Person 1 | |
| Function | Captain Pilot Not Flying |
| Qualification | Flight Crew Air Transport Pilot (ATP) |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
On takeoff roll the left engine exceeded the egt limit. We noticed the limitation was exceeded at about 105 KTS. OAT was 24C with EPR set to 2.05. Engine parameters: max power take off; bleed off take off; the egt climbed to 641C and the egt gauge on the left engine was flashing. We continued the take off and reduced the power to climb power on schedule. The egt was reduced when power was reduced. We climbed to a sufficient altitude and notified dispatch and maintenance control about the irregular egt indication. I was advised to return to our departure airport because the temperature exceeded the parameters for the conditions. We made logbook entry stating that the left engine egt indicated 641C on take off.we need appropriate maintenance on our engines to eliminate the known high egt operating engines. We have a procedure that dictates all take offs require maximum power for certain aircraft. This procedure stresses an already stressed engine. This was a maximum power assigned aircraft.
Original NASA ASRS Text
Title: An MD88 returned to the departure airport when the left engine exceeded maximum EGT limits late in the takeoff roll. An airline maintenance directive requiring flight crews to use maximum thrust settings for takeoff on specific aircraft likely aggravated the potential for an overtemp.
Narrative: On takeoff roll the left engine exceeded the EGT limit. We noticed the limitation was exceeded at about 105 KTS. OAT was 24C with EPR set to 2.05. Engine parameters: Max power take off; bleed off take off; the EGT climbed to 641C and the EGT gauge on the left engine was flashing. We continued the take off and reduced the power to climb power on schedule. The EGT was reduced when power was reduced. We climbed to a sufficient altitude and notified Dispatch and Maintenance Control about the irregular EGT indication. I was advised to return to our departure airport because the temperature exceeded the parameters for the conditions. We made logbook entry stating that the left engine EGT indicated 641C on take off.We need appropriate maintenance on our engines to eliminate the known high EGT operating engines. We have a procedure that dictates all take offs require MAX POWER for certain aircraft. This procedure stresses an already stressed engine. This was a MAX POWER assigned aircraft.
Data retrieved from NASA's ASRS site as of April 2012 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.