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C441 pilot reported running off the end of the runway after experiencing violent shaking during landing possibly due to hydroplaning.
| Attributes | |
| ACN | 1402310 |
| Time | |
| Date | 201611 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Environment | |
| Flight Conditions | IMC |
| Light | Daylight |
| Aircraft 1 | |
| Make Model Name | Cessna 425/441 Conquest I/Conquest II |
| Operating Under FAR Part | Part 135 |
| Flight Phase | Landing |
| Flight Plan | IFR |
| Person 1 | |
| Function | Pilot Flying Single Pilot |
| Qualification | Flight Crew Flight Instructor Flight Crew Instrument Flight Crew Commercial Flight Crew Multiengine |
| Experience | Flight Crew Last 90 Days 120 Flight Crew Total 2500 Flight Crew Type 200 |
| Events | |
| Anomaly | Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Ground Excursion Runway Inflight Event / Encounter Weather / Turbulence |
Narrative:
The aircraft was near max landing weight; so I had kept my speed about 10 kts faster than usual with only approach flaps in. Upon touchdown; I encountered a violent shaking that occurred in unison with adding reverse thrust; so I took it out of reverse as an attempt to troubleshoot; only for a second or two. After no change with the shaking; along with poor braking action from my left side; I suspected a flat tire; and reported so with the tower. In my attempt to maintain directional control; I could not slow down to the point where I would have been able to make the turnoff. I elected instead to continue straight; where; in the grass I was able to make a controlled 180 degree turn and bring the aircraft to a complete stop. I shut down; alerted tower to my situation; and checked on the passengers.in hindsight; after consulting with pilots with considerable more time in the C441; the shaking and lack of braking efficiency was likely due to the damp runway conditions; creating some hydroplaning with my higher approach speed and tailwind. My initial troubleshooting of the reverse wasted valuable runway distance; and so could have been used more efficiently in slowing the aircraft. However; as my overrun of the runway caused no damage to the aircraft; runway lighting; or injury to any passenger; I still feel that was the appropriate course of action after being unable to slow the airplane.
Original NASA ASRS Text
Title: C441 pilot reported running off the end of the runway after experiencing violent shaking during landing possibly due to hydroplaning.
Narrative: The aircraft was near max landing weight; so I had kept my speed about 10 kts faster than usual with only approach flaps in. Upon touchdown; I encountered a violent shaking that occurred in unison with adding reverse thrust; so I took it out of reverse as an attempt to troubleshoot; only for a second or two. After no change with the shaking; along with poor braking action from my left side; I suspected a flat tire; and reported so with the tower. In my attempt to maintain directional control; I could not slow down to the point where I would have been able to make the turnoff. I elected instead to continue straight; where; in the grass I was able to make a controlled 180 degree turn and bring the aircraft to a complete stop. I shut down; alerted tower to my situation; and checked on the passengers.In hindsight; after consulting with pilots with considerable more time in the C441; the shaking and lack of braking efficiency was likely due to the damp runway conditions; creating some hydroplaning with my higher approach speed and tailwind. My initial troubleshooting of the reverse wasted valuable runway distance; and so could have been used more efficiently in slowing the aircraft. However; as my overrun of the runway caused no damage to the aircraft; runway lighting; or injury to any passenger; I still feel that was the appropriate course of action after being unable to slow the airplane.
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.