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Instructor pilot; conducting a training flight in a single engine military aircraft; reported experiencing a severe nose gear vibration during the takeoff role. The takeoff was aborted just as the nose gear collapsed and the propeller struck the runway. No injuries were reported.
| Attributes | |
| ACN | 1318619 |
| Time | |
| Date | 201512 |
| 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 | Military Trainer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Takeoff |
| Route In Use | None |
| Flight Plan | None |
| Component | |
| Aircraft Component | Nose Gear |
| Person 1 | |
| Function | Instructor Pilot Not Flying |
| Qualification | Flight Crew Commercial Flight Crew Flight Instructor Flight Crew Multiengine Flight Crew Instrument |
| Experience | Flight Crew Last 90 Days 184 Flight Crew Total 1000 Flight Crew Type 0 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Ground Strike - Aircraft |
Narrative:
I was well rested and it was a normal day for me. I was going to go up with a pilot; get acquainted with the aircraft; and work on a few takeoffs and landings. We briefed about the different speeds and systems of the aircraft; reviewed takeoff and approach procedures; and read through the emergency items before starting the aircraft. We then taxied out from the east T hangars to the run-up area at runway xxr. After completing a run-up and discussing positive exchange of flight controls; we were cleared for takeoff.on takeoff the pilot smoothly applied full power and maintained center-line; I called out positive airspeed and gauges in the green. At around 40 kts we encountered a vibration from the nose that became severe at about 50kts. I called to abort the takeoff and pilot closed the throttle and applied the brakes. At that time we impacted the nose of the aircraft and the prop struck the runway. We quickly came to a full stop. I asked tower for assistance off the runway and then asked the pilot to secure the airplane and exit the aircraft. We exited the aircraft and then met with airport operations on the runway.
Original NASA ASRS Text
Title: Instructor pilot; conducting a training flight in a single engine military aircraft; reported experiencing a severe nose gear vibration during the takeoff role. The takeoff was aborted just as the nose gear collapsed and the propeller struck the runway. No injuries were reported.
Narrative: I was well rested and it was a normal day for me. I was going to go up with a pilot; get acquainted with the aircraft; and work on a few takeoffs and landings. We briefed about the different speeds and systems of the aircraft; reviewed takeoff and approach procedures; and read through the emergency items before starting the aircraft. We then taxied out from the east T hangars to the run-up area at Runway XXR. After completing a run-up and discussing positive exchange of flight controls; we were cleared for takeoff.On takeoff the pilot smoothly applied full power and maintained center-line; I called out positive airspeed and gauges in the green. At around 40 kts we encountered a vibration from the nose that became severe at about 50kts. I called to abort the takeoff and pilot closed the throttle and applied the brakes. At that time we impacted the nose of the aircraft and the prop struck the runway. We quickly came to a full stop. I asked tower for assistance off the runway and then asked the pilot to secure the airplane and exit the aircraft. We exited the aircraft and then met with airport operations on the runway.
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.