Small transport twin pilot had landing gear collapse on landing.

Attributes
ACN	409261
Time
Date	199807
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : miw
State Reference	IA
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pwk
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : private
Experience	flight time last 90 days : 28 flight time total : 1569 flight time type : 546
ASRS Report	409261
Events
Anomaly	aircraft equipment problem : critical inflight encounter : weather other anomaly other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : insufficient time
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

The problem arose in the landing phase of a complex twin engine aircraft. I was making a VFR approach to an unfamiliar airport (runway length 5000 ft) on a hot afternoon. The airplane was properly configured for landing with full flaps, 16 inch manifold pressure, gear down (3 green lights), propellers set at 2500 RPM. The approach was well controled at a 500 FPM descent. The end of the runway was crossed at 100 KTS. The plane bounced slightly at touchdown on the gear and went about 500-600 ft and decelerated and the landing gear collapsed. The plane slid about 150 ft and stopped. All passenger exited, the fuel and electrical were turned off, the engines secured. No injuries to persons occurred. Contributing factors could have been the initial bounce, from the hot airport condition, an inactive squat switch.

Original NASA ASRS Text

Title: SMT TWIN PLT HAD LNDG GEAR COLLAPSE ON LNDG.

Narrative: THE PROB AROSE IN THE LNDG PHASE OF A COMPLEX TWIN ENG ACFT. I WAS MAKING A VFR APCH TO AN UNFAMILIAR ARPT (RWY LENGTH 5000 FT) ON A HOT AFTERNOON. THE AIRPLANE WAS PROPERLY CONFIGURED FOR LNDG WITH FULL FLAPS, 16 INCH MANIFOLD PRESSURE, GEAR DOWN (3 GREEN LIGHTS), PROPS SET AT 2500 RPM. THE APCH WAS WELL CTLED AT A 500 FPM DSCNT. THE END OF THE RWY WAS CROSSED AT 100 KTS. THE PLANE BOUNCED SLIGHTLY AT TOUCHDOWN ON THE GEAR AND WENT ABOUT 500-600 FT AND DECELERATED AND THE LNDG GEAR COLLAPSED. THE PLANE SLID ABOUT 150 FT AND STOPPED. ALL PAX EXITED, THE FUEL AND ELECTRICAL WERE TURNED OFF, THE ENGS SECURED. NO INJURIES TO PERSONS OCCURRED. CONTRIBUTING FACTORS COULD HAVE BEEN THE INITIAL BOUNCE, FROM THE HOT ARPT CONDITION, AN INACTIVE SQUAT SWITCH.

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.