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Widebody transport aircraft attempting to turn into taxiway lined with railroad ties--widebody transport aircraft may have run wheel or wheel assembly over obstruction.
| Attributes | |
| ACN | 110150 |
| Time | |
| Date | 198905 |
| Day | Wed |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | airport : jfk |
| State Reference | NY |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | common carrier : air carrier |
| Make Model Name | Widebody, Low Wing, 3 Turbojet Eng |
| Navigation In Use | Other |
| Flight Phase | ground other : taxi |
| Flight Plan | IFR |
| Person 1 | |
| Affiliation | company : air carrier |
| Function | flight crew : captain oversight : pic |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 50 flight time total : 20000 flight time type : 2500 |
| ASRS Report | 110150 |
| Person 2 | |
| Affiliation | company : air carrier |
| Function | flight crew : first officer |
| Qualification | pilot : atp |
| Experience | flight time last 90 days : 190 flight time total : 10320 |
| ASRS Report | 110446 |
| Events | |
| Anomaly | other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : anomaly accepted |
| Consequence | Other |
| Supplementary | |
| Primary Problem | Airport |
| Air Traffic Incident | Pilot Deviation other |
| Situations | |
| Airport | other physical facility |
Narrative:
Taxiing from gate area at jfk, we were cleared to taxi on taxiway vb to make a right turn on outer taxiway. Considerable construction is in progress in the area of the inner and outer txwys after exiting the gate area. Taxiway vb is narrowed and edges of taxiway are defined by 8'x8' right/right ties. A slightly more than 90 degree turn is required to enter outer taxiway from vb. When to commence the turn is a judgement call and it is a very tight turn for a widebody transport. We felt contact with something during the turn, and subsequently determined we had contacted one of the 8'x8' right/right ties with the right gear assembly. We returned to the gate.I believe that since this turn is so tight for widebody transport aircraft, some form of 'commence turn' aid or device would be very appropriate at this taxiway intersection, or limit turns from vb to outer to left turns only--which are much more friendly to widebody transport aircraft at this intersection.
Original NASA ASRS Text
Title: WDB ACFT ATTEMPTING TO TURN INTO TXWY LINED WITH RAILROAD TIES--WDB ACFT MAY HAVE RUN WHEEL OR WHEEL ASSEMBLY OVER OBSTRUCTION.
Narrative: TAXIING FROM GATE AREA AT JFK, WE WERE CLRED TO TAXI ON TXWY VB TO MAKE A RIGHT TURN ON OUTER TXWY. CONSIDERABLE CONSTRUCTION IS IN PROGRESS IN THE AREA OF THE INNER AND OUTER TXWYS AFTER EXITING THE GATE AREA. TXWY VB IS NARROWED AND EDGES OF TXWY ARE DEFINED BY 8'X8' R/R TIES. A slightly MORE THAN 90 DEG TURN IS REQUIRED TO ENTER OUTER TXWY FROM VB. WHEN TO COMMENCE THE TURN IS A JUDGEMENT CALL AND IT IS A VERY TIGHT TURN FOR A WDB. WE FELT CONTACT WITH SOMETHING DURING THE TURN, AND SUBSEQUENTLY DETERMINED WE HAD CONTACTED ONE OF THE 8'X8' R/R TIES WITH THE RIGHT GEAR ASSEMBLY. WE RETURNED TO THE GATE.I BELIEVE THAT SINCE THIS TURN IS SO TIGHT FOR WDB ACFT, SOME FORM OF 'COMMENCE TURN' AID OR DEVICE WOULD BE VERY APPROPRIATE AT THIS TXWY INTXN, OR LIMIT TURNS FROM VB TO OUTER TO LEFT TURNS ONLY--WHICH ARE MUCH MORE FRIENDLY TO WDB ACFT AT THIS INTXN.
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.