 |
37000 Feet | Browse and search NASA's Aviation Safety Reporting System |
|
Sa-227 flight crew experience an unintentional excursion from runway during landing roll-out when steering was engaged. Nose steering coupler reportedly failed and fell off.
| Attributes | |
| ACN | 1064380 |
| Time | |
| Date | 201301 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | VMC |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | SA-227 AC Metro III |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Landing |
| Route In Use | Direct |
| Flight Plan | IFR |
| Component | |
| Aircraft Component | Nosewheel Steering |
| Person 1 | |
| Function | First Officer |
| Qualification | Flight Crew Multiengine Flight Crew Commercial Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 75 Flight Crew Total 861 Flight Crew Type 300 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway |
Narrative:
During normal landing; and on landing roll at a speed of 25-30 KTS; the steering was engaged and the aircraft abruptly veered to the right and off into the grass stopping about 20 feet off the runway. No lights were hit; no injuries; and the aircraft did not sustain any damage. After the plane was towed back to the ramp a mechanic inspected the aircraft for damage; and none was reported. He did find that that a nose steering coupler (sensor) had failed to be safety wired and thus had fallen off. This caused the steering to fail because it had no sensing functions as to what was straight in relation to the rudder pedals or to the nose gear itself.
Original NASA ASRS Text
Title: SA-227 flight crew experience an unintentional excursion from runway during landing roll-out when steering was engaged. Nose Steering Coupler reportedly failed and fell off.
Narrative: During normal landing; and on landing roll at a speed of 25-30 KTS; the steering was engaged and the aircraft abruptly veered to the right and off into the grass stopping about 20 feet off the runway. No lights were hit; no injuries; and the aircraft did not sustain any damage. After the plane was towed back to the ramp a mechanic inspected the aircraft for damage; and none was reported. He did find that that a Nose Steering Coupler (sensor) had failed to be safety wired and thus had fallen off. This caused the steering to fail because it had no sensing functions as to what was straight in relation to the rudder pedals or to the nose gear itself.
Data retrieved from NASA's ASRS site as of July 2013 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.