37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Attributes | |
ACN | 1711994 |
Time | |
Date | 201912 |
Aircraft 1 | |
Make Model Name | Commercial Fixed Wing |
Flight Phase | Taxi |
Person 1 | |
Function | Ramp |
Events | |
Anomaly | Deviation - Procedural Published Material / Policy Ground Event / Encounter Loss Of Aircraft Control |
Narrative:
Tarmac concrete is rough-it provides friction. Lead in lines use thick non-porous paint which the aircraft nose gear drives on. When wet/covered in melted salt or deicing fluid; the nose wheels get no traction. I have seen nose slide on the line after parked in wet conditions when windy; and slow moving aircraft skid when line is wet. On this flight; the parking personnel had the plane needing to turn. The nose wheel turned; but the aircraft continued in an inertia inspired newton's 1st law way...it continued on its original path. The pilots turned the nose gear more; and the aircraft still continued in on its original course. When the plane came to rest; without adjusting; the parking personnel told the crew they still needed to move forward; but they were as close to the park spot as possible; moving forward would have just made it worse.
Original NASA ASRS Text
Title: Ground employee painted taxi-in line reported to be slippery when wet.
Narrative: Tarmac concrete is rough-it provides friction. Lead in lines use thick non-porous paint which the aircraft nose gear drives on. When wet/covered in melted salt or deicing fluid; the nose wheels get no traction. I have seen nose slide on the line after parked in wet conditions when windy; and slow moving aircraft skid when line is wet. On this flight; the parking personnel had the plane needing to turn. The nose wheel turned; but the aircraft continued in an inertia inspired Newton's 1st law way...it continued on its original path. The pilots turned the nose gear more; and the aircraft still continued in on its original course. When the plane came to rest; without adjusting; the parking personnel told the crew they still needed to move forward; but they were as close to the park spot as possible; moving forward would have just made it worse.
Data retrieved from NASA's ASRS site 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.