Pilot of small aircraft twin had gear collapse after touchdown and during rollout.

Attributes
ACN	186325
Time
Date	199108
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : eok
State Reference	IA
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, Low Wing, 2 Eng, Retractable Gear
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 26 flight time total : 3095 flight time type : 1545
ASRS Report	186325
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other other : unspecified cockpit
Resolutory Action	none taken : detected after the fact
Consequence	other Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	Pilot Deviation other

Narrative:

The airplane was in the landing pattern at the keokuk airport. On the downwind leg I put the gear lever into the down position and extended 15 degrees of flap. I saw 3 green lights indicating the gear was fully extended. Upon entering the base leg I again checked the gear indicator and saw 3 green lights. On the final approach I usually check the mirror which is attached to the left engine nacelle. This mirror will reflect the nose wheel when it is in the down position. On his occasion, however, I do not recall if I checked the mirror. The final approach and flair were normal. I made contact on the centerline of the runway. At this point the gear collapsed and the plane skidded to a stop. There were no injuries. The plane came to rest supported by the gear doors and the collapsed wheels. There was no damage to the body or the wings of the aircraft.

Original NASA ASRS Text

Title: PLT OF SMA TWIN HAD GEAR COLLAPSE AFTER TOUCHDOWN AND DURING ROLLOUT.

Narrative: THE AIRPLANE WAS IN THE LNDG PATTERN AT THE KEOKUK ARPT. ON THE DOWNWIND LEG I PUT THE GEAR LEVER INTO THE DOWN POS AND EXTENDED 15 DEGS OF FLAP. I SAW 3 GREEN LIGHTS INDICATING THE GEAR WAS FULLY EXTENDED. UPON ENTERING THE BASE LEG I AGAIN CHKED THE GEAR INDICATOR AND SAW 3 GREEN LIGHTS. ON THE FINAL APCH I USUALLY CHK THE MIRROR WHICH IS ATTACHED TO THE L ENG NACELLE. THIS MIRROR WILL REFLECT THE NOSE WHEEL WHEN IT IS IN THE DOWN POS. ON HIS OCCASION, HOWEVER, I DO NOT RECALL IF I CHKED THE MIRROR. THE FINAL APCH AND FLAIR WERE NORMAL. I MADE CONTACT ON THE CENTERLINE OF THE RWY. AT THIS POINT THE GEAR COLLAPSED AND THE PLANE SKIDDED TO A STOP. THERE WERE NO INJURIES. THE PLANE CAME TO REST SUPPORTED BY THE GEAR DOORS AND THE COLLAPSED WHEELS. THERE WAS NO DAMAGE TO THE BODY OR THE WINGS OF THE ACFT.

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.