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A beechcraft baron 55 on landing experienced an uncontrolled series of bounces resulting in the nose gear collapsing damaging the aircraft.
| Attributes | |
| ACN | 537080 |
| Time | |
| Date | 200201 |
| Day | Thu |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | airport : zzz.airport |
| State Reference | US |
| Altitude | agl single value : 0 |
| Environment | |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : sux.tower |
| Operator | general aviation : personal |
| Make Model Name | Baron 55/Cochise |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing : roll |
| Person 1 | |
| Affiliation | other |
| Function | flight crew : single pilot |
| Qualification | pilot : private pilot : instrument |
| ASRS Report | 537080 |
| Person 2 | |
| Function | observation : passenger |
| Events | |
| Anomaly | aircraft equipment problem : critical ground encounters other other anomaly |
| Independent Detector | other flight crewa |
| Resolutory Action | none taken : detected after the fact |
| Consequence | other other |
| Supplementary | |
| Problem Areas | Maintenance Human Performance Flight Crew Human Performance Chart Or Publication Aircraft |
| Primary Problem | Flight Crew Human Performance |
Narrative:
On jan/thu/02 at about XA30Z while landing at the ZZZ, us, airport, I experienced an uncontrollable bouncing event commonly referred to as porpoising, which resulted in damage to the 1965 beechcraft baron 55 that I was flying. As I approached the airport, the wind was bouncing the plane a little and I was easily able to maintain centerline and a constant approach angle to the approach end of runway 28. As I touched down, the plane bounced into the air and began a violent and uncontrollable series of bounces resulting in the breaking of the nosewheel yoke just below the strut attach point causing a nose low attitude in excess of the airplane's design causing the propeller blades to strike the ground. As the plane skidded to a stop I turned off the fuel, magnetos and electrical system. The plane came to a stop and I instructed the 2 passenger I had with me to get out quickly and I followed them out of the plane. Callback conversation with reporter revealed the following information: the reporter stated the aircraft went into a series of bounces or porpoising immediately after touchdown and suspects soft main gear struts with defective internal o-ring seals. The reporter said both propellers were bent and engines need teardown for sudden stoppage but the airplane structure had only nose gear damage.
Original NASA ASRS Text
Title: A BEECHCRAFT BARON 55 ON LNDG EXPERIENCED AN UNCTLED SERIES OF BOUNCES RESULTING IN THE NOSE GEAR COLLAPSING DAMAGING THE ACFT.
Narrative: ON JAN/THU/02 AT ABOUT XA30Z WHILE LNDG AT THE ZZZ, US, ARPT, I EXPERIENCED AN UNCTLABLE BOUNCING EVENT COMMONLY REFERRED TO AS PORPOISING, WHICH RESULTED IN DAMAGE TO THE 1965 BEECHCRAFT BARON 55 THAT I WAS FLYING. AS I APCHED THE ARPT, THE WIND WAS BOUNCING THE PLANE A LITTLE AND I WAS EASILY ABLE TO MAINTAIN CTRLINE AND A CONSTANT APCH ANGLE TO THE APCH END OF RWY 28. AS I TOUCHED DOWN, THE PLANE BOUNCED INTO THE AIR AND BEGAN A VIOLENT AND UNCTLABLE SERIES OF BOUNCES RESULTING IN THE BREAKING OF THE NOSEWHEEL YOKE JUST BELOW THE STRUT ATTACH POINT CAUSING A NOSE LOW ATTITUDE IN EXCESS OF THE AIRPLANE'S DESIGN CAUSING THE PROP BLADES TO STRIKE THE GND. AS THE PLANE SKIDDED TO A STOP I TURNED OFF THE FUEL, MAGNETOS AND ELECTRICAL SYS. THE PLANE CAME TO A STOP AND I INSTRUCTED THE 2 PAX I HAD WITH ME TO GET OUT QUICKLY AND I FOLLOWED THEM OUT OF THE PLANE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WENT INTO A SERIES OF BOUNCES OR PORPOISING IMMEDIATELY AFTER TOUCHDOWN AND SUSPECTS SOFT MAIN GEAR STRUTS WITH DEFECTIVE INTERNAL O-RING SEALS. THE RPTR SAID BOTH PROPS WERE BENT AND ENGS NEED TEARDOWN FOR SUDDEN STOPPAGE BUT THE AIRPLANE STRUCTURE HAD ONLY NOSE GEAR DAMAGE.
Data retrieved from NASA's ASRS site as of July 2007 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.