GRR CTLR EXPRESSED CONCERN REGARDING THE LONG TERM VOR LIMITATION THAT RESULTS IN LIMITED RWY OPTIONS FOR THE USER.

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THE GRR VOR HAS BEEN UNUSABLE BEYOND 11.0 DME SINCE 10/06. GRR ARPT HAS ILS APCHS TO RWYS 26L/8R AND RWY 35. WHEN THE WIND IS STRONG FROM THE S; PLTS HAVE BEEN ABLE TO USE THE VOR 17 APCH FOR A LNDG MORE ALIGNED WITH THE WIND. SINCE THE VOR IS NOT USABLE BEYOND 11 DME; THIS APCH IS NOT AVAILABLE. WITH WINTER UPON US NOW; SNOW AND ICE CAN CONTAMINATE A RWY MAKING A XWIND LNDG DIFFICULT/UNSAFE FOR PLTS. WITH A STRONG S WIND LNDG ON A RWY WITH AN ILS (RWY 26L/8R AND RWY 35) APCH DOES NOT ALLOW A PLT TO HAVE A RWY WITH AN INST APCH PROC THAT WILL ALIGN THE ACFT WITH A FAVORABLE WIND. ANOTHER OPTION IS TO CIRCLE FROM AN ILS APCH TO LAND ON RWY 17 WHEN THE CEILING/VISIBILITY PERMITS. RECENTLY DURING IFR WX (SNOW); PLTS HAVE BEEN CIRCLING WITH POOR VISIBILITY; LOW CEILINGS AND CONTAMINATES (SNOW/ICE) ON THE RWY. WHEN THE VISIBILITY AND/OR THE CEILING IS TOO LOW; THE PLTS USE A STRAIGHT-IN ILS APCH TO A RWY WITH A STRONG XWIND COMPONENT. A SOLUTION TO THIS PROB WOULD BE TO FIX THE VOR AND FLT CHK THE NAVAID AND THE APCH PROC. APPARENTLY; THE ROOF ON THE VOR LEAKS.