An small aircraft pilot got both of his propellers on the runway avoiding a wheels unlocked landing.

Attributes
ACN	264003
Time
Date	199402
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 3sz
State Reference	MO
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing other
Flight Plan	VFR
Person 1
Affiliation	Other
Function	instruction : instructor
Qualification	pilot : instrument pilot : commercial pilot : cfi
Experience	flight time last 90 days : 83 flight time total : 2100 flight time type : 25
ASRS Report	264900
Person 2
Affiliation	Other
Function	instruction : trainee
Qualification	pilot : cfi pilot : commercial pilot : instrument
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : overcame equipment problem
Consequence	other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

While working with my multi-CFI student on takeoff and lndgs, the right main landing gear started to fold up on rollout. When I noticed the right side of the aircraft getting very low, I added full power and rolled the yoke hard to the left. The right propeller struck and, as I rolled to the left, the ground struck the left propeller. Someone on the ground looked at the gear with binoculars and told me the gear now looked ok. I made a second landing with no problem. My witness on the ground told me he saw the gear down the first time and it looked like the right main was not locked. I had 3 green lights and no red gear unsafe light. No aircraft damage except propellers.

Original NASA ASRS Text

Title: AN SMA PLT GOT BOTH OF HIS PROPS ON THE RWY AVOIDING A WHEELS UNLOCKED LNDG.

Narrative: WHILE WORKING WITH MY MULTI-CFI STUDENT ON TKOF AND LNDGS, THE R MAIN LNDG GEAR STARTED TO FOLD UP ON ROLLOUT. WHEN I NOTICED THE R SIDE OF THE ACFT GETTING VERY LOW, I ADDED FULL PWR AND ROLLED THE YOKE HARD TO THE L. THE R PROP STRUCK AND, AS I ROLLED TO THE L, THE GND STRUCK THE L PROP. SOMEONE ON THE GND LOOKED AT THE GEAR WITH BINOCULARS AND TOLD ME THE GEAR NOW LOOKED OK. I MADE A SECOND LNDG WITH NO PROB. MY WITNESS ON THE GND TOLD ME HE SAW THE GEAR DOWN THE FIRST TIME AND IT LOOKED LIKE THE R MAIN WAS NOT LOCKED. I HAD 3 GREEN LIGHTS AND NO RED GEAR UNSAFE LIGHT. NO ACFT DAMAGE EXCEPT PROPS.

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.