COMPLAINT REF RWY SURFACE OF ROCK BREAKING LOOSE CREATING HAZARD TO ACFT.

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I RECENTLY FLEW TO THE BISBEE-DOUGLAS INTL ARPT. ON APCH TO RWY 35/17 THE SURFACE CONDITION LOOKED EXCELLENT. ON LNDG; I DISCOVERED LOOSE ROCKS THROUGHOUT THE ENTIRE RWY. I WAS INFORMED THAT THE RWY HAD BEEN RESURFACED SOMETIME IN 1992. I PERFORMED A VISUAL INSPECTION OF THE RWY AND WAS SHOCKED. THE RESURFACE MATERIAL IS 3/8 INCH ROCK AND IS BREAKING LOOSE CAUSING AN EXTREMELY HAZARDOUS FOD CONDITION. I HAVE NEVER SEEN THIS TYPE OF MATERIAL USED ON A RWY SURFACE BEFORE. I AM VERY CONCERNED FOR THE SAFETY OF FLCS AND ACFT. TIRES; PROPS; ENGS AND OTHER COMPONENTS CAN BE DAMAGED BY THIS CONDITION CAUSING LOSS OF ACFT AND AIR CREWS. I URGE YOU TO INVESTIGATE THIS HAZARD SO CONDITIONS CAN BE IMPROVED AND CORRECTED. NOTAMS AND FLT INFO ABOUT CONDITIONS OF RWYS 35/17 SHOULD BE UPDATED TO REFLECT THE CURRENT CONDITION OF THE FACILITY. FLCS ARE UNAWARE OF THE RWY CONDITION BECAUSE FROM THE AIR THE RWY LOOKS EXCELLENT. I RECOMMEND EVERY EFFORT BE MADE TO CORRECT THIS HAZARDOUS CONDITION. I APPRECIATE YOUR SUPPORT AND EFFORTS IN CORRECTING THIS PROB AND INCREASING FLT SAFETY.