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The pilot of a lsa ctsw failed to account for a steep VASI GS and the potential for downdrafts over the threshold of an elevated runway and was unable to recover from an increase of rate of descent nearing touchdown despite adding full power. The right main departed and the nose gear collapsed causing the aircraft to roll over and come to rest inverted. The reporter exited safely.
| Attributes | |
| ACN | 1180979 |
| Time | |
| Date | 201406 |
| Local Time Of Day | 0601-1200 |
| Place | |
| Locale Reference | ZZZ.Airport |
| State Reference | US |
| Aircraft 1 | |
| Make Model Name | Light Sport Aircraft |
| Operating Under FAR Part | Part 91 |
| Flight Phase | Landing |
| Route In Use | Direct Visual Approach |
| Flight Plan | VFR |
| Person 1 | |
| Function | Single Pilot |
| Qualification | Flight Crew Commercial Flight Crew Instrument Flight Crew Flight Instructor |
| Experience | Flight Crew Last 90 Days 30 Flight Crew Total 7500 Flight Crew Type 400 |
| Events | |
| Anomaly | Ground Event / Encounter Ground Strike - Aircraft Inflight Event / Encounter Loss Of Aircraft Control Inflight Event / Encounter Unstabilized Approach Inflight Event / Encounter Weather / Turbulence |
Narrative:
While on landing approach to runway 18; stabilized; on glide path according to VASI and aoa [angle of attack] indication in the green I encountered a downdraft [which increased my] descent rate. I applied full power; but could not prevent an impact in front of the runway overrun. The right main gear departed and the nose-wheel collapsed. The airplane slowly nosed over and came to rest inverted. I opened the door and departed the airplane.I had received local WX information from a close by airport; which reported winds 080 to 270/7 G12 KTS; rolling out on final; I noticed a requirement for crosswind correction to the right. I used the low wing method to make sure; I had sufficient control reserve available.local pilots explained to me; that the glideslope was set non standard to 3.7 degrees and the drop off in front of runway 18; frequently produced downdrafts. I was looking for the windsock but did not see it on approach.
Original NASA ASRS Text
Title: The pilot of a LSA CTSW failed to account for a steep VASI GS and the potential for downdrafts over the threshold of an elevated runway and was unable to recover from an increase of rate of descent nearing touchdown despite adding full power. The right main departed and the nose gear collapsed causing the aircraft to roll over and come to rest inverted. The reporter exited safely.
Narrative: While on landing approach to Runway 18; stabilized; on glide path according to VASI and AOA [Angle Of Attack] indication in the green I encountered a downdraft [which increased my] descent rate. I applied full power; but could not prevent an impact in front of the runway overrun. The right main gear departed and the nose-wheel collapsed. The airplane slowly nosed over and came to rest inverted. I opened the door and departed the airplane.I had received local WX information from a close by airport; which reported winds 080 to 270/7 G12 KTS; rolling out on final; I noticed a requirement for crosswind correction to the right. I used the low wing method to make sure; I had sufficient control reserve available.Local pilots explained to me; that the glideslope was set non standard to 3.7 degrees and the drop off in front of Runway 18; frequently produced downdrafts. I was looking for the windsock but did not see it on approach.
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.