What was found
THE LEFT NOSE GEAR DOOR CAME IN CONTACT WITH THE NOSE WHEEL AND BROKE THE LEFT DOOR. AGUSTA SB B.T. 109-84 REV A PERTAINS TO THIS SUBJECT, BUT WAS PREVIOUSLY PERFORMED ON THIS AIRCRAFT. THIS REPAIR STATION HAS FOUND 2 OTHER AIRCRAFT (A109C) WITH B.T. 1090-84 REV 1 C/W THAT HAVE BROKEN THE LEFT NOSE GEAR DOOR. FOUND THE NOSE STRUT NITROGEN CHARGE LOW. THIS COULD BE THE CAUSE. INSTALLED NEW LEFT NOSE GEAR DOOR. SERVICED NOSE STRUT WITH HYDRAULIC FLUID AND NITROGEN. PERFORMED RETRACTION/EXTENSION CHECK.