Gear collapsed on small transport twin on roll out after landing.

Attributes
ACN	186218
Time
Date	199108
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : roc
State Reference	NY
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 Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Flight Plan	None
Person 1
Affiliation	company : air taxi
Function	flight crew : single pilot
Qualification	pilot : atp pilot : instrument pilot : commercial
Experience	flight time last 90 days : 275 flight time total : 2400 flight time type : 200
ASRS Report	186218
Person 2
Affiliation	government : faa
Function	controller : local
Qualification	controller : non radar
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

After landing, on roll out, gear collapsed. I had 3 green lights and nose wheel visually on the mirror. I landed and after 600-800 ft of roll out the nose wheel collapsed and then the main. I had not touched anything. I retracted the flaps before climbing out of the plane. There are witnesses that saw this happen and saw me on my roll out. When I realized the wheels were collapsed I pulled the mixtures back to idle and turned off the magnetos.

Original NASA ASRS Text

Title: GEAR COLLAPSED ON SMT TWIN ON ROLL OUT AFTER LNDG.

Narrative: AFTER LNDG, ON ROLL OUT, GEAR COLLAPSED. I HAD 3 GREEN LIGHTS AND NOSE WHEEL VISUALLY ON THE MIRROR. I LANDED AND AFTER 600-800 FT OF ROLL OUT THE NOSE WHEEL COLLAPSED AND THEN THE MAIN. I HAD NOT TOUCHED ANYTHING. I RETRACTED THE FLAPS BEFORE CLBING OUT OF THE PLANE. THERE ARE WITNESSES THAT SAW THIS HAPPEN AND SAW ME ON MY ROLL OUT. WHEN I REALIZED THE WHEELS WERE COLLAPSED I PULLED THE MIXTURES BACK TO IDLE AND TURNED OFF THE MAGNETOS.

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.