 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Tractor driver reported the tug began to lurch and bounce when the brakes were applied.
| Attributes | |
| ACN | 1577168 |
| Time | |
| Date | 201809 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Regional Jet 700 ER/LR (CRJ700) |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Taxi |
| Component | |
| Aircraft Component | Nose Gear |
| Person 1 | |
| Function | Vehicle Driver |
| Events | |
| Anomaly | Deviation - Procedural Other / Unknown Ground Event / Encounter Other / Unknown |
Narrative:
We were cleared to push aircraft X. During pushback; the supertug began to lurch when brakes were applied at the end of the push. The aircraft began to bounce violently in the cradle; with the nose gear nearly escaping the cradle. During that lurching and bouncing; the nose gear rotated approximately thirty degrees while remaining in the cradle. I put the tractor into neutral; brought it to a stop; contacted the tower to advise of the issue and lowered the aircraft. We chocked the main gear; and I attempted to open the cradle to recapture the aircraft and continue the tow. While opening; the sensor would not read the cradle as fully open; and a hydraulic leak was noticed. [Shop was] notified and removed the tractor with a wrecker for maintenance. It was returned to service [the day after].the lurching behavior that happened has been previously reported to management by several [ramp employees]. There has been no fix. If this tractor is not removed from service; an aircraft will escape the cradle and create potential injury or aircraft damage.
Original NASA ASRS Text
Title: Tractor driver reported the tug began to lurch and bounce when the brakes were applied.
Narrative: We were cleared to push Aircraft X. During pushback; the Supertug began to lurch when brakes were applied at the end of the push. The aircraft began to bounce violently in the cradle; with the nose gear nearly escaping the cradle. During that lurching and bouncing; the nose gear rotated approximately thirty degrees while remaining in the cradle. I put the tractor into neutral; brought it to a stop; contacted the Tower to advise of the issue and lowered the aircraft. We chocked the main gear; and I attempted to open the cradle to recapture the aircraft and continue the tow. While opening; the sensor would not read the cradle as fully open; and a hydraulic leak was noticed. [Shop was] notified and removed the tractor with a wrecker for Maintenance. It was returned to service [the day after].The lurching behavior that happened has been previously reported to Management by several [ramp employees]. There has been no fix. If this tractor is not removed from service; an aircraft will escape the cradle and create potential injury or aircraft damage.
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.