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B777 flight crew returns to gate after main gear tire lose pressure and is informed by airport authority/authorized that two taxi lights have been broken along their route.
| Attributes | |
| ACN | 780013 |
| Time | |
| Date | 200803 |
| Local Time Of Day | 1801 To 2400 |
| Place | |
| Locale Reference | airport : bos.airport |
| State Reference | MA |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | B777-200 |
| Operating Under FAR Part | Part 121 |
| Flight Phase | ground : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| ASRS Report | 780013 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| ASRS Report | 780001 |
| Events | |
| Anomaly | aircraft equipment problem : less severe |
| Independent Detector | aircraft equipment other aircraft equipment : eicas |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Flight Crew Human Performance Airport |
| Primary Problem | Ambiguous |
Narrative:
During normal taxi out for takeoff; got tire pressure EICAS message. #4 tire rapidly lost pressure. Returned to gate. During subsequent walkaround; gentleman from airport maintenance informed me that 2 taxiway lights were smashed along our taxi route and did we feel anything on taxi out. I believe we did not cause the damage but may have unwittingly taxied over some of the debris causing our flat tire. Inspection of the tire revealed no embedded glass on any tires and 1 small puncture on tire #4. Supplemental information from acn 780001: the synoptic came up on the screen and we saw that our #4 tire was indicating low pressure. We returned to the gate and; upon inspection of the tire; maintenance found a piece of FOD imbedded in the tire. Only tire #4 showed damage but both #3 and #4 were changed per procedure. First officer was approached by an airport employee on the ramp as to whether we felt anything during taxi. Neither I nor first officer recalled anything abnormal as to the taxi out. We had a jumpseater as well who noted nothing out of the ordinary regarding the turn.
Original NASA ASRS Text
Title: B777 FLT CREW RETURNS TO GATE AFTER MAIN GEAR TIRE LOSE PRESSURE AND IS INFORMED BY ARPT AUTH THAT TWO TAXI LIGHTS HAVE BEEN BROKEN ALONG THEIR ROUTE.
Narrative: DURING NORMAL TAXI OUT FOR TKOF; GOT TIRE PRESSURE EICAS MESSAGE. #4 TIRE RAPIDLY LOST PRESSURE. RETURNED TO GATE. DURING SUBSEQUENT WALKAROUND; GENTLEMAN FROM ARPT MAINT INFORMED ME THAT 2 TXWY LIGHTS WERE SMASHED ALONG OUR TAXI RTE AND DID WE FEEL ANYTHING ON TAXI OUT. I BELIEVE WE DID NOT CAUSE THE DAMAGE BUT MAY HAVE UNWITTINGLY TAXIED OVER SOME OF THE DEBRIS CAUSING OUR FLAT TIRE. INSPECTION OF THE TIRE REVEALED NO EMBEDDED GLASS ON ANY TIRES AND 1 SMALL PUNCTURE ON TIRE #4. SUPPLEMENTAL INFO FROM ACN 780001: THE SYNOPTIC CAME UP ON THE SCREEN AND WE SAW THAT OUR #4 TIRE WAS INDICATING LOW PRESSURE. WE RETURNED TO THE GATE AND; UPON INSPECTION OF THE TIRE; MAINT FOUND A PIECE OF FOD IMBEDDED IN THE TIRE. ONLY TIRE #4 SHOWED DAMAGE BUT BOTH #3 AND #4 WERE CHANGED PER PROC. FO WAS APCHED BY AN ARPT EMPLOYEE ON THE RAMP AS TO WHETHER WE FELT ANYTHING DURING TAXI. NEITHER I NOR FO RECALLED ANYTHING ABNORMAL AS TO THE TAXI OUT. WE HAD A JUMPSEATER AS WELL WHO NOTED NOTHING OUT OF THE ORDINARY REGARDING THE TURN.
Data retrieved from NASA's ASRS site as of May 2009 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.