 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
A B777 rejected takeoff at 50 KTS due to EICAS 'confign steering' message. Maintenance found inoperative main gear steering actuator.
| Attributes | |
| ACN | 573019 |
| Time | |
| Date | 200302 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : egll.airport |
| State Reference | FO |
| Altitude | agl single value : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777 Undifferentiated or Other Model |
| Operating Under FAR Part | Part 121 |
| 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 : 180 flight time total : 12000 flight time type : 1570 |
| ASRS Report | 573019 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Events | |
| Anomaly | aircraft equipment problem : less severe other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : eicas warning other flight crewa other flight crewb |
| Resolutory Action | flight crew : rejected takeoff |
| Consequence | other Other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Aircraft |
| Primary Problem | Aircraft |
Narrative:
Shortly after power up, at about 50 KTS, I aborted the takeoff for a 'confign steering' message. This was not caused by the aircraft trucks not having a chance to straighten out, as I had made sure that they were, and we were doing a rolling takeoff. Tower was notified and we cleared the runway without incident. I made a PA announcement, we called dispatch and maintenance, and returned to the gate. The maintenance personnel in lhr had changed a tire before our takeoff, but they indicated to me that they had returned the truck steering lever to its normal position. According to lhr maintenance, we had a problem with the truck steering actuator. After conferring with maintenance, the truck steering mechanism was pinned out and we departed with a 'maintenance gear steering' status message. There was no need to consult the limits section on tire overheat as all brake and tire temperatures were low. The remainder of the flight was completed without incident.
Original NASA ASRS Text
Title: A B777 REJECTED TKOF AT 50 KTS DUE TO EICAS 'CONFIGN STEERING' MESSAGE. MAINT FOUND INOP MAIN GEAR STEERING ACTUATOR.
Narrative: SHORTLY AFTER PWR UP, AT ABOUT 50 KTS, I ABORTED THE TKOF FOR A 'CONFIGN STEERING' MESSAGE. THIS WAS NOT CAUSED BY THE ACFT TRUCKS NOT HAVING A CHANCE TO STRAIGHTEN OUT, AS I HAD MADE SURE THAT THEY WERE, AND WE WERE DOING A ROLLING TKOF. TWR WAS NOTIFIED AND WE CLRED THE RWY WITHOUT INCIDENT. I MADE A PA ANNOUNCEMENT, WE CALLED DISPATCH AND MAINT, AND RETURNED TO THE GATE. THE MAINT PERSONNEL IN LHR HAD CHANGED A TIRE BEFORE OUR TKOF, BUT THEY INDICATED TO ME THAT THEY HAD RETURNED THE TRUCK STEERING LEVER TO ITS NORMAL POS. ACCORDING TO LHR MAINT, WE HAD A PROB WITH THE TRUCK STEERING ACTUATOR. AFTER CONFERRING WITH MAINT, THE TRUCK STEERING MECHANISM WAS PINNED OUT AND WE DEPARTED WITH A 'MAINT GEAR STEERING' STATUS MESSAGE. THERE WAS NO NEED TO CONSULT THE LIMITS SECTION ON TIRE OVERHEAT AS ALL BRAKE AND TIRE TEMPS WERE LOW. THE REMAINDER OF THE FLT WAS COMPLETED WITHOUT INCIDENT.
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.