A DA20 WITH HISTORY OF NOSE GEAR IRREGULARITIES DECLARED AN EMER AND LANDED WITH THE NOSE GEAR RETRACTED INCURRING ACFT DAMAGE.

Narrative

ENRTE FROM ZZZ TO ZZA; WE ENCOUNTERED MECHANICAL IRREGULARITY WITH NOSE GEAR. WHEN PUTTING GEAR DOWN (EXTENDED POS); GEAR INDICATED 2 GREEN AND 2 RED FOR THE MAIN GEAR. UPON 'RECYCLING' GEAR; NO CHANGE IN INDICATION. WE THEN PERFORMED PROC XYZ VIA CHKLIST AND STILL NO CHANGE IN INDICATION. WHEN DOING PROC; WE NOTICED HYD QUANTITY AND PRESSURE LOSS IN HYD #2 SYS; FOLLOWED BY HYD SYS #2 LIGHT. WE THEN INITIATED GAR AND VECTORED SE OF ARPT TO WORK ON PROB. AT THIS POINT WE WENT BACK TO THE CHKLIST TO FOLLOW PROCS. WE THEN TRIED TO UNLATCH NOSE GEAR VIA PROC XYA WITH NO RESULTS. NEXT; WE DECLARED AN EMER AND PERFORMED 2 LOW PASSES AND THEN GOT A BLOCK ALT UP TO 5000 FT AND 'PULLED' NUMEROUS POSITIVE G'S TO HELP NOSE GEAR TO COME DOWN WITH NO RESULTS. AFTER 1 MORE FLY-BY; STILL NO NOSE GEAR DOWN INDICATION. AT THIS POINT WE WERE AT ABOUT 800 LBS OF FUEL INDICATED. WE TRIED NORMAL GEAR EXTENSION; PROC XYZ; PROC XYA; AND EVEN TRIED TO WORK IN A CALL TO MAINT TO GET A HOLD OF SUPVR FOR ANY OTHER OPTIONS. AT ONE POINT; APCH CAME BACK WITH SUGGESTIONS FROM MECH IN MAINT; BUT EVERYTHING THAT HAD BEEN SUGGESTED HAD ALREADY BEEN ATTEMPTED. WE THEN PERFORMED AN APCH FOR EMER LNDG. ON TOUCHDOWN; NOSE GEAR WAS HELD OFF GND AS LONG AS POSSIBLE UTILIZING EMER DRAG CHUTE. AFTER AROUND 80 KTS; NOSE CAME DOWN; CONFIRMING NOSE GEAR INDICATION. AIRPLANE CAME TO REST ABOUT 4000 FT DOWN RWY. NO INJURIES RESULTED. GEAR WAS WRITTEN UP PREVIOUSLY BY MYSELF 1 WK EARLIER FOR GEAR INDICATION IRREGULARITIES.