Left main gear collapses on twin small transport landing at ptk.

Attributes
ACN	138772
Time
Date	199003
Day	Tue
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ptk
State Reference	MI
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : den
Operator	general aviation : personal
Make Model Name	Small Transport, Low Wing, 2 Recip Eng
Flight Phase	landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : single pilot
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 26 flight time total : 1224
ASRS Report	138772
Person 2
Affiliation	Other
Function	observation : passenger
Qualification	pilot : private
ASRS Report	139308
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	other
Supplementary
Primary Problem	Ambiguous
Air Traffic Incident	other

Narrative:

Left main gear folded into closed position on rollout runway 9R ptk after normal approach, flare and touchdown, 3 greens showing. Wind was from 090 degree. Aircraft rolled along on right main, nosewheel and left wingtip, stopping off runway in snow. No injuries. Scraping damage to wingtip, flap, gear and propeller tips. No damage to antennas under fuselage. Gear extension rod end sheared in bolt threads, possibly associated with hard landing or contact with snow berm on prior landing. Supplemental information from acn 139308: I am a private pilot who was a passenger in the copilot seat. I clearly noted that the 3 green lights indicating that landing gear were down and locked were illuminated when the landing gear was lowered on final approach.

Original NASA ASRS Text

Title: LEFT MAIN GEAR COLLAPSES ON TWIN SMT LNDG AT PTK.

Narrative: LEFT MAIN GEAR FOLDED INTO CLOSED POSITION ON ROLLOUT RWY 9R PTK AFTER NORMAL APCH, FLARE AND TOUCHDOWN, 3 GREENS SHOWING. WIND WAS FROM 090 DEG. ACFT ROLLED ALONG ON RIGHT MAIN, NOSEWHEEL AND LEFT WINGTIP, STOPPING OFF RWY IN SNOW. NO INJURIES. SCRAPING DAMAGE TO WINGTIP, FLAP, GEAR AND PROPELLER TIPS. NO DAMAGE TO ANTENNAS UNDER FUSELAGE. GEAR EXTENSION ROD END SHEARED IN BOLT THREADS, POSSIBLY ASSOCIATED WITH HARD LNDG OR CONTACT WITH SNOW BERM ON PRIOR LNDG. SUPPLEMENTAL INFORMATION FROM ACN 139308: I AM A PRIVATE PLT WHO WAS A PAX IN THE COPLT SEAT. I CLEARLY NOTED THAT THE 3 GREEN LIGHTS INDICATING THAT LNDG GEAR WERE DOWN AND LOCKED WERE ILLUMINATED WHEN THE LNDG GEAR WAS LOWERED ON FINAL APCH.

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.