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EMB145 captain experienced uncommanded nose wheel steering inputs during takeoff roll and rejected the takeoff. Maintenance subsequently discovered a corroded cannon plug.
| Attributes | |
| ACN | 846937 |
| Time | |
| Date | 200908 |
| Local Time Of Day | 1201-1800 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | EMB ERJ 145 ER&LR |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Takeoff |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Nosewheel Steering |
| Person 1 | |
| Function | Captain Pilot Flying |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical |
Narrative:
At 100 KTS aircraft was on centerline on takeoff roll (rudder pedals neutral). Aircraft jerked hard to the right. I returned the aircraft to centerline. A few seconds later the aircraft jerked hard to the left. I aborted the takeoff at 110 KTS with full brake pressure and thrust reverse. The mechanic determined that one of the cannon plugs was corroded which caused the steering malfunction/jolts in the system. Returned to the gate and called maintenance/deplaned/called dispatch.
Original NASA ASRS Text
Title: EMB145 Captain experienced uncommanded nose wheel steering inputs during takeoff roll and rejected the takeoff. Maintenance subsequently discovered a corroded cannon plug.
Narrative: At 100 KTS aircraft was on centerline on takeoff roll (Rudder Pedals neutral). Aircraft jerked hard to the right. I returned the aircraft to centerline. A few seconds later the aircraft jerked hard to the left. I aborted the takeoff at 110 KTS with full brake pressure and thrust reverse. The Mechanic determined that one of the cannon plugs was corroded which caused the steering malfunction/jolts in the system. Returned to the gate and called Maintenance/deplaned/Called Dispatch.
Data retrieved from NASA's ASRS site as of April 2012 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.