The right main gear collapsed on an atx small aircraft.

Attributes
ACN	244298
Time
Date	199306
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : kvl
State Reference	AK
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Flight Phase	landing other other
Flight Plan	VFR
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 260 flight time total : 2150
ASRS Report	244298
Person 2
Affiliation	Other
Function	other personnel
Qualification	other other : other
Events
Anomaly	aircraft equipment problem : critical other anomaly other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	faa : investigated other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Following a flawless approach and landing, the right main gear collapsed while decelerating through 40 KTS (on rollout). There was '3 in the green' and had been no previous indication of faulty gear. As the main collapsed inboard, it pulled the aircraft towards the right ditch. I used full left brake, rudder and aileron to maintain directional control. This resulted in keeping part of the aircraft on the runway. An NTSB investigation has since told me that the broken 'over center latch arm' and its sheared bolt are 'tell-tale' signals of an improperly adjusted gear arm. The part that really sucks is that a mechanic somewhere along the way did a half-ass job, but I'm the one getting an accident on my record because the right aileron was slightly bent. I suggest more stringent ad's on the gear inspection during 100 hours and annuals.

Original NASA ASRS Text

Title: THE R MAIN GEAR COLLAPSED ON AN ATX SMA.

Narrative: FOLLOWING A FLAWLESS APCH AND LNDG, THE R MAIN GEAR COLLAPSED WHILE DECELERATING THROUGH 40 KTS (ON ROLLOUT). THERE WAS '3 IN THE GREEN' AND HAD BEEN NO PREVIOUS INDICATION OF FAULTY GEAR. AS THE MAIN COLLAPSED INBOARD, IT PULLED THE ACFT TOWARDS THE R DITCH. I USED FULL LEFT BRAKE, RUDDER AND AILERON TO MAINTAIN DIRECTIONAL CTL. THIS RESULTED IN KEEPING PART OF THE ACFT ON THE RWY. AN NTSB INVESTIGATION HAS SINCE TOLD ME THAT THE BROKEN 'OVER CTR LATCH ARM' AND ITS SHEARED BOLT ARE 'TELL-TALE' SIGNALS OF AN IMPROPERLY ADJUSTED GEAR ARM. THE PART THAT REALLY SUCKS IS THAT A MECH SOMEWHERE ALONG THE WAY DID A HALF-ASS JOB, BUT I'M THE ONE GETTING AN ACCIDENT ON MY RECORD BECAUSE THE R AILERON WAS SLIGHTLY BENT. I SUGGEST MORE STRINGENT AD'S ON THE GEAR INSPECTION DURING 100 HRS AND ANNUALS.

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.