Narrative:

After being cleared for takeoff on runway 24R at lax, experienced an overheat warning (area J) on a widebody transport. Both overheat loops indicated an overheat, the area was isolated pneumatically. The aircraft was taxied back to the gate for maintenance action. The overheat condition lasted for 2 to 3 minutes after area was isolated. Note: the takeoff roll was never initiated, however since the aircraft was already on the runway and there was an aircraft on final approach, the taxi off the runway was expedited and lax tower reported it as an aborted takeoff. The aircraft on final did not have to initiate a go around. Callback conversation with reporter revealed following information. Area J is on hot section of the #2 engine. Maintenance found ruptured ducting causing the overheat. Aircraft out of service for 24 hours and the flight was cancelled. Has heard other carriers have had similar incidents on this widebody transport.

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Original NASA ASRS Text

Title: OVERHEAT IN THE NUMBER 2 ENGINE RESULT IN ABORT TKOF AND ACFT OUT OF SERVICE FOR RUPTURED DUCT.

Narrative: AFTER BEING CLRED FOR TKOF ON RWY 24R AT LAX, EXPERIENCED AN OVERHEAT WARNING (AREA J) ON A WDB. BOTH OVERHEAT LOOPS INDICATED AN OVERHEAT, THE AREA WAS ISOLATED PNEUMATICALLY. THE ACFT WAS TAXIED BACK TO THE GATE FOR MAINT ACTION. THE OVERHEAT CONDITION LASTED FOR 2 TO 3 MINUTES AFTER AREA WAS ISOLATED. NOTE: THE TKOF ROLL WAS NEVER INITIATED, HOWEVER SINCE THE ACFT WAS ALREADY ON THE RWY AND THERE WAS AN ACFT ON FINAL APCH, THE TAXI OFF THE RWY WAS EXPEDITED AND LAX TWR RPTED IT AS AN ABORTED TKOF. THE ACFT ON FINAL DID NOT HAVE TO INITIATE A GO AROUND. CALLBACK CONVERSATION WITH RPTR REVEALED FOLLOWING INFO. AREA J IS ON HOT SECTION OF THE #2 ENG. MAINT FOUND RUPTURED DUCTING CAUSING THE OVERHEAT. ACFT OUT OF SVC FOR 24 HOURS AND THE FLT WAS CANCELLED. HAS HEARD OTHER CARRIERS HAVE HAD SIMILAR INCIDENTS ON THIS WDB.

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