M20J pilot has landing gear collapse.

Attributes
ACN	555988
Time
Date	200207
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : gww.airport
State Reference	NC
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	M-20 J (201)
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	VFR
Aircraft 2
Make Model Name	Skyhawk 172/Cutlass 172
Flight Phase	descent : approach
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : atp
Experience	flight time last 90 days : 70 flight time total : 1700 flight time type : 250
ASRS Report	555988
Person 2
Function	flight crew : single pilot
Events
Anomaly	aircraft equipment problem : critical ground encounters : gear up landing non adherence : published procedure other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : detected after the fact
Consequence	other
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

I entered downwind for runway 23 after airport advisory from unicom and was told one in pattern. I was descending out of altitude and was doing around 200 KTS on the GPS. I spotted the C172 and widened my pattern to give good separation and allow my speed to bleed down. I put my hand on the gear lever and waited for 130 KTS gear speed, while watching C172. As I turned base, first notch of flaps. Long final before landing check. 1/2 mi final, full flaps and quick check of instruments and gear and flaps. As we touched, had another sinking and when propeller stopped and was bent, I realized the gear was gone. Everything was done by the book and every procedure was followed. I believe the safety cover for the manual extension was moved and didn't allow gear to extend and lock down. Callback conversation with reporter revealed the following information: reporter indicated that the landing gear was down and he believed the safety cover and manual extension lever were out of position and caused the landing gear to unlock and collapse on touchdown.

Original NASA ASRS Text

Title: M20J PLT HAS LNDG GEAR COLLAPSE.

Narrative: I ENTERED DOWNWIND FOR RWY 23 AFTER ARPT ADVISORY FROM UNICOM AND WAS TOLD ONE IN PATTERN. I WAS DSNDING OUT OF ALT AND WAS DOING AROUND 200 KTS ON THE GPS. I SPOTTED THE C172 AND WIDENED MY PATTERN TO GIVE GOOD SEPARATION AND ALLOW MY SPD TO BLEED DOWN. I PUT MY HAND ON THE GEAR LEVER AND WAITED FOR 130 KTS GEAR SPD, WHILE WATCHING C172. AS I TURNED BASE, FIRST NOTCH OF FLAPS. LONG FINAL BEFORE LNDG CHK. 1/2 MI FINAL, FULL FLAPS AND QUICK CHK OF INSTS AND GEAR AND FLAPS. AS WE TOUCHED, HAD ANOTHER SINKING AND WHEN PROP STOPPED AND WAS BENT, I REALIZED THE GEAR WAS GONE. EVERYTHING WAS DONE BY THE BOOK AND EVERY PROC WAS FOLLOWED. I BELIEVE THE SAFETY COVER FOR THE MANUAL EXTENSION WAS MOVED AND DIDN'T ALLOW GEAR TO EXTEND AND LOCK DOWN. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR INDICATED THAT THE LNDG GEAR WAS DOWN AND HE BELIEVED THE SAFETY COVER AND MANUAL EXTENSION LEVER WERE OUT OF POS AND CAUSED THE LNDG GEAR TO UNLOCK AND COLLAPSE ON TOUCHDOWN.

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.