Bellanca BL17 pilot has the left main gear collapse on landing roll.

Attributes
ACN	708115
Time
Date	200608
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : crs.airport
State Reference	TX
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : lgb.tower
Operator	general aviation : personal
Make Model Name	Viking
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : trainee
Qualification	pilot : private
Experience	flight time last 90 days : 4 flight time total : 512 flight time type : 289
ASRS Report	708115
Person 2
Affiliation	other
Function	instruction : instructor
Qualification	pilot : instrument pilot : cfi
Experience	flight time last 90 days : 35 flight time total : 4171 flight time type : 1116
ASRS Report	707311
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

I was making my second landing of the day. Both lndgs were smooth; nice lndgs. During rollout; the plane started to shake like the front wheel was the cause. I pulled back on yoke then it started to pitch back and forth from side to side. The bracket broke and the wheel on pilot's side or right when facing the plane turned sideways and bent over; causing the plane to veer to the left and come to a stop. No damage to the plane except the part that broke. The bracket that holds the wheel strait broke.

Original NASA ASRS Text

Title: BELLANCA BL17 PLT HAS THE L MAIN GEAR COLLAPSE ON LNDG ROLL.

Narrative: I WAS MAKING MY SECOND LNDG OF THE DAY. BOTH LNDGS WERE SMOOTH; NICE LNDGS. DURING ROLLOUT; THE PLANE STARTED TO SHAKE LIKE THE FRONT WHEEL WAS THE CAUSE. I PULLED BACK ON YOKE THEN IT STARTED TO PITCH BACK AND FORTH FROM SIDE TO SIDE. THE BRACKET BROKE AND THE WHEEL ON PLT'S SIDE OR R WHEN FACING THE PLANE TURNED SIDEWAYS AND BENT OVER; CAUSING THE PLANE TO VEER TO THE L AND COME TO A STOP. NO DAMAGE TO THE PLANE EXCEPT THE PART THAT BROKE. THE BRACKET THAT HOLDS THE WHEEL STRAIT BROKE.

Data retrieved from NASA's ASRS site as of January 2009 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.