Narrative:

I was practicing approachs with my student when; after a touch-and-go; the aircraft had a gear failure. My student; after completing the takeoff; attempted to retract the landing 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 controller tower of the situation and promptly declared an emergency. I cycled the landing gear switch into the 'down' position; and all 3 landing gear indicated 'down and locked.' I proceeded to do a low pass near the control tower and the tower controller visually confirmed that the landing gear appeared to be in the 'down' position.' I then was instructed to circle a nearby lake where the maintenance supervisor of the aircraft's home base made contact with me. We went through a series of checks to determine if the gear was safe enough to attempt a landing. After a number of checks; the decision was made to attempt a landing. I instructed the control tower to have the fire trucks ready in case the landing gear folded upon landing. I executed a soft field landing; which occurred uneventfully. I taxied back to the maintenance hangar with the fire engines 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 situation.

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Original NASA ASRS Text

Title: 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.

Data retrieved from NASA's ASRS site as of January 2009 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.