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An overseas flight is delayed after 2 low speed aborts that resulted in 2 flat tires upon returning to the ramp at dfw, tx.
| Attributes | |
| ACN | 586029 |
| Time | |
| Date | 200306 |
| Day | Tue |
| Place | |
| Locale Reference | airport : dfw.airport |
| State Reference | TX |
| Altitude | agl single value : 0 |
| Aircraft 1 | |
| Controlling Facilities | tower : phl.tower |
| Operator | common carrier : air carrier |
| Make Model Name | B767 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : takeoff roll |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer instruction : instructor oversight : pic |
| Qualification | pilot : atp |
| ASRS Report | 586029 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain instruction : trainee |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : icas other flight crewa other flight crewb |
| Resolutory Action | flight crew : rejected takeoff other |
| Consequence | other Other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Aircraft Company Environmental Factor Flight Crew Human Performance |
| Primary Problem | Aircraft |
Narrative:
Departed ramp on time. Requalification of captain to cdg. Normal taxi, no waiting for departure. Moments after adding takeoff power icas message. Right engine pressure regulating valve. Retarded throttle. Speed approximately 20-30 KTS. No airspeed indication. Slow taxi up to the first high speed turnoff. Contacted maintenance. Maintenance wanted us to try high power setting again, since message had gone away. After reviewing abort procedures, taxied back to takeoff position, and attempted another takeoff. Immediately after takeoff power added and brakes released, same icas message appeared again. Retarded throttle. Speed approximately 5-10 KTS. On both occasions, we added power to get to the turnoff. Although I was not steering the aircraft or doing the braking, it appeared to be normal in all respects. Upon return to the gate, #1 tire went flat, and about 10 min later, #5 tire went flat. Maintenance asked us to release the brakes. Agent indicated the #1 tire went flat on our turn into the gate. Temperature approximately 95 degrees outside air temperature.
Original NASA ASRS Text
Title: AN OVERSEAS FLT IS DELAYED AFTER 2 LOW SPD ABORTS THAT RESULTED IN 2 FLAT TIRES UPON RETURNING TO THE RAMP AT DFW, TX.
Narrative: DEPARTED RAMP ON TIME. REQUALIFICATION OF CAPT TO CDG. NORMAL TAXI, NO WAITING FOR DEP. MOMENTS AFTER ADDING TKOF PWR ICAS MESSAGE. R ENG PRESSURE REGULATING VALVE. RETARDED THROTTLE. SPD APPROX 20-30 KTS. NO AIRSPD INDICATION. SLOW TAXI UP TO THE FIRST HIGH SPD TURNOFF. CONTACTED MAINT. MAINT WANTED US TO TRY HIGH PWR SETTING AGAIN, SINCE MESSAGE HAD GONE AWAY. AFTER REVIEWING ABORT PROCS, TAXIED BACK TO TKOF POS, AND ATTEMPTED ANOTHER TKOF. IMMEDIATELY AFTER TKOF PWR ADDED AND BRAKES RELEASED, SAME ICAS MESSAGE APPEARED AGAIN. RETARDED THROTTLE. SPD APPROX 5-10 KTS. ON BOTH OCCASIONS, WE ADDED PWR TO GET TO THE TURNOFF. ALTHOUGH I WAS NOT STEERING THE ACFT OR DOING THE BRAKING, IT APPEARED TO BE NORMAL IN ALL RESPECTS. UPON RETURN TO THE GATE, #1 TIRE WENT FLAT, AND ABOUT 10 MIN LATER, #5 TIRE WENT FLAT. MAINT ASKED US TO RELEASE THE BRAKES. AGENT INDICATED THE #1 TIRE WENT FLAT ON OUR TURN INTO THE GATE. TEMP APPROX 95 DEGS OUTSIDE AIR TEMP.
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.