During touch and go, nose gear of small aircraft collapsed.

Attributes
ACN	436207
Time
Date	199905
Day	Wed
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : fll.airport
State Reference	FL
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : instructional
Make Model Name	Small Aircraft, Low Wing, 2 Eng, Retractable Gear
Operating Under FAR Part	Part 91
Flight Phase	landing : touch and go
Flight Plan	None
Person 1
Affiliation	other
Function	instruction : instructor
Qualification	pilot : multi engine pilot : commercial pilot : atp pilot : cfi
ASRS Report	436207
Person 2
Affiliation	other
Function	instruction : trainee
Events
Anomaly	aircraft equipment problem : critical
Independent Detector	other flight crewa other flight crewb
Resolutory Action	aircraft : evacuated none taken : anomaly accepted
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

The student manned the controls as we joined right downwind runway 9R at fll. He configured the aircraft for landing as per the before landing checklist and called out landing gear down -- 3 green. I acknowledged the call and confirmed the landing gear lights -- 3 green down and locked. The student then continued the approach to a firm 2 point landing on the main gears on runway centerline. When the nose made contact with the runway, the flaps were retracted and as power was applied for takeoff the nose gear collapsed. I proceeded to apply full yoke back pressure, took both mixture controls to idle-cutoff position and kept directional control until the aircraft came to a complete stop. At this point the student proceeded to turn magnetos for both engines off and battery master switch off. We exited the aircraft and stayed clear at a distance as ground vehicles took position. I believe the nose gear collapsed due to some malfunction in gear system. Under the above stated circumstances I believe there was nothing we could have done to prevent the occurrence.

Original NASA ASRS Text

Title: DURING TOUCH AND GO, NOSE GEAR OF SMA COLLAPSED.

Narrative: THE STUDENT MANNED THE CTLS AS WE JOINED R DOWNWIND RWY 9R AT FLL. HE CONFIGURED THE ACFT FOR LNDG AS PER THE BEFORE LNDG CHKLIST AND CALLED OUT LNDG GEAR DOWN -- 3 GREEN. I ACKNOWLEDGED THE CALL AND CONFIRMED THE LNDG GEAR LIGHTS -- 3 GREEN DOWN AND LOCKED. THE STUDENT THEN CONTINUED THE APCH TO A FIRM 2 POINT LNDG ON THE MAIN GEARS ON RWY CTRLINE. WHEN THE NOSE MADE CONTACT WITH THE RWY, THE FLAPS WERE RETRACTED AND AS PWR WAS APPLIED FOR TKOF THE NOSE GEAR COLLAPSED. I PROCEEDED TO APPLY FULL YOKE BACK PRESSURE, TOOK BOTH MIXTURE CTLS TO IDLE-CUTOFF POS AND KEPT DIRECTIONAL CTL UNTIL THE ACFT CAME TO A COMPLETE STOP. AT THIS POINT THE STUDENT PROCEEDED TO TURN MAGNETOS FOR BOTH ENGS OFF AND BATTERY MASTER SWITCH OFF. WE EXITED THE ACFT AND STAYED CLR AT A DISTANCE AS GND VEHICLES TOOK POS. I BELIEVE THE NOSE GEAR COLLAPSED DUE TO SOME MALFUNCTION IN GEAR SYS. UNDER THE ABOVE STATED CIRCUMSTANCES I BELIEVE THERE WAS NOTHING WE COULD HAVE DONE TO PREVENT THE OCCURRENCE.

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.