Narrative:

My coworker and I were doing a maintenance flight to determine if the new aileron was working properly. On the preflight; we noticed a loose gear indicator wire. Our maintenance fixed the problem. On takeoff; our right gear indicator still showed the gear was down when we put the gear up. This was the gear with the loose wire. We put the gear down; but the green light turned off now. We recycled the gear and the light started flickering. We got on with approach and came back into ZZZ for a low approach so our maintenance could look at the gear. They could not tell if it was down or not. We proceeded back around for another approach and came in to land. At 300 ft AGL; we feathered the right engine in case of a gear collapse. The gear stayed extended. We were given priority by approach; but we never asked for it.

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Original NASA ASRS Text

Title: A PA44 R LNDG GEAR DOWN LOCK GREEN LIGHT WAS FLICKERING. UNSURE OF ITS POSITION; THE CREW FEATHER THE ENG PRIOR TO A SAFE; UNEVENTFUL LNDG.

Narrative: MY COWORKER AND I WERE DOING A MAINT FLT TO DETERMINE IF THE NEW AILERON WAS WORKING PROPERLY. ON THE PREFLT; WE NOTICED A LOOSE GEAR INDICATOR WIRE. OUR MAINT FIXED THE PROB. ON TKOF; OUR R GEAR INDICATOR STILL SHOWED THE GEAR WAS DOWN WHEN WE PUT THE GEAR UP. THIS WAS THE GEAR WITH THE LOOSE WIRE. WE PUT THE GEAR DOWN; BUT THE GREEN LIGHT TURNED OFF NOW. WE RECYCLED THE GEAR AND THE LIGHT STARTED FLICKERING. WE GOT ON WITH APCH AND CAME BACK INTO ZZZ FOR A LOW APCH SO OUR MAINT COULD LOOK AT THE GEAR. THEY COULD NOT TELL IF IT WAS DOWN OR NOT. WE PROCEEDED BACK AROUND FOR ANOTHER APCH AND CAME IN TO LAND. AT 300 FT AGL; WE FEATHERED THE R ENG IN CASE OF A GEAR COLLAPSE. THE GEAR STAYED EXTENDED. WE WERE GIVEN PRIORITY BY APCH; BUT WE NEVER ASKED FOR IT.

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.