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A private pilot undergoing multi-engine training in his C-310 with an instructor suffered the collapse of the right main gear on landing roll. The instructor believed all immediately prior training landings were well in the 'normal' range; but noted the landing gear had been subject to maintenance on a recent annual inspection.
| Attributes | |
| ACN | 1080674 |
| Time | |
| Date | 201304 |
| 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 | Cessna 310/T310C |
| Operating Under FAR Part | Part 121 |
| Flight Phase | Landing |
| Flight Plan | VFR |
| Component | |
| Aircraft Component | Main Gear |
| Person 1 | |
| Function | Trainee |
| Qualification | Flight Crew Private |
| Experience | Flight Crew Last 90 Days 11 Flight Crew Total 168.7 Flight Crew Type 9.3 |
| Person 2 | |
| Function | Instructor |
| Qualification | Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Flight Engineer Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 100 Flight Crew Total 11000 Flight Crew Type 150 |
| Events | |
| Anomaly | Aircraft Equipment Problem Critical Ground Event / Encounter Ground Strike - Aircraft |
Narrative:
Heavy vibrations were felt during the landing roll while slowing to 20 mph or less. Thinking the source was the nose wheel; back pressure was applied to the elevator to try to stop vibrations. When doing so had no effect on the vibrations the back pressure was relieved which made the vibrations greater and back pressure was reapplied. At that moment the right main gear folded under the aircraft at a speed of 10 mph or less.
Original NASA ASRS Text
Title: A private pilot undergoing multi-engine training in his C-310 with an instructor suffered the collapse of the right main gear on landing roll. The instructor believed all immediately prior training landings were well in the 'normal' range; but noted the landing gear had been subject to maintenance on a recent annual inspection.
Narrative: Heavy vibrations were felt during the landing roll while slowing to 20 MPH or less. Thinking the source was the nose wheel; back pressure was applied to the elevator to try to stop vibrations. When doing so had no effect on the vibrations the back pressure was relieved which made the vibrations greater and back pressure was reapplied. At that moment the right main gear folded under the aircraft at a speed of 10 MPH or less.
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.