A PA28 AT 200 FT DECLARED AN EMER DUE TO LNDG GEAR INDICATION HAD ALL 3 GREEN DOWN AND LOCKED WITH GEAR UNSAFE LIGHT ILLUMINATED.

Narrative

I WAS PRACTICING APCHS WITH MY STUDENT WHEN; AFTER A TOUCH-AND-GO; THE ACFT HAD A GEAR FAILURE. MY STUDENT; AFTER COMPLETING THE TKOF; ATTEMPTED TO RETRACT THE LNDG GEAR; HOWEVER; THE GEAR FAILED TO RETRACT. THE MAIN GEAR INDICATORS SHOWED A 'DOWN AND LOCKED' INDICATION; HOWEVER; THE NOSE GEAR SHOWED A 'GEAR UNSAFE' INDICATION. I NOTIFIED THE CTLR TWR OF THE SIT AND PROMPTLY DECLARED AN EMER. I CYCLED THE LNDG GEAR SWITCH INTO THE 'DOWN' POS; AND ALL 3 LNDG GEAR INDICATED 'DOWN AND LOCKED.' I PROCEEDED TO DO A LOW PASS NEAR THE CTL TWR AND THE TWR CTLR VISUALLY CONFIRMED THAT THE LNDG GEAR APPEARED TO BE IN THE 'DOWN' POS.' I THEN WAS INSTRUCTED TO CIRCLE A NEARBY LAKE WHERE THE MAINT SUPVR OF THE ACFT'S HOME BASE MADE CONTACT WITH ME. WE WENT THROUGH A SERIES OF CHKS TO DETERMINE IF THE GEAR WAS SAFE ENOUGH TO ATTEMPT A LNDG. AFTER A NUMBER OF CHKS; THE DECISION WAS MADE TO ATTEMPT A LNDG. I INSTRUCTED THE CTL TWR TO HAVE THE FIRE TRUCKS READY IN CASE THE LNDG GEAR FOLDED UPON LNDG. I EXECUTED A SOFT FIELD LNDG; WHICH OCCURRED UNEVENTFULLY. I TAXIED BACK TO THE MAINT HANGAR WITH THE FIRE ENGS IN TOW; AND HAD NO FURTHER INCIDENT. I FEEL THAT THERE WAS NO FURTHER ACTION THAT I COULD HAVE TAKEN; REGARDLESS OF THE OUTCOME OF THE SIT.