On landing rollout, landing gear broke. Loss of aircraft control.

Attributes
ACN	156270
Time
Date	199009
Day	Sat
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : anc
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Small Aircraft, High Wing, 1 Eng, Fixed Gear
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 8000 flight time type : 737
ASRS Report	156270
Events
Anomaly	other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : declared emergency none taken : unable
Consequence	other
Supplementary
Primary Problem	Aircraft

Narrative:

At an uncontrolled off airport location my small aircraft was on landing rollout on the mud flats. The aircraft was near taxi speed when the left main gear broke in half, just above the axle bolts. The aircraft gear dug into the runway surface and the nose went down and struck the cowl and propeller. The right wing swung around and the leading edge and wing tip hit the ground and did minor damage to the wing and fuselage. On examination of the landing gear it appeared to have rust spots on the spring steel where it broke in half. I believe that the landing gear was cracked and had been stressed or damaged somehow prior to this incident and finally broke causing this aircraft damage.

Original NASA ASRS Text

Title: ON LNDG ROLLOUT, LNDG GEAR BROKE. LOSS OF ACFT CTL.

Narrative: AT AN UNCONTROLLED OFF ARPT LOCATION MY SMA WAS ON LNDG ROLLOUT ON THE MUD FLATS. THE ACFT WAS NEAR TAXI SPD WHEN THE LEFT MAIN GEAR BROKE IN HALF, JUST ABOVE THE AXLE BOLTS. THE ACFT GEAR DUG INTO THE RWY SURFACE AND THE NOSE WENT DOWN AND STRUCK THE COWL AND PROP. THE RIGHT WING SWUNG AROUND AND THE LEADING EDGE AND WING TIP HIT THE GND AND DID MINOR DAMAGE TO THE WING AND FUSELAGE. ON EXAMINATION OF THE LNDG GEAR IT APPEARED TO HAVE RUST SPOTS ON THE SPRING STEEL WHERE IT BROKE IN HALF. I BELIEVE THAT THE LNDG GEAR WAS CRACKED AND HAD BEEN STRESSED OR DAMAGED SOMEHOW PRIOR TO THIS INCIDENT AND FINALLY BROKE CAUSING THIS ACFT 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.