HILLER UH-12 PVT PT PRACTICING LNDGS; NOTICED A 2 INCH HIGH STEEL REBAR STICKING UP FROM THE CTR OF THE COMPASS ROSE AT THE END OF THE OAR UNCONTROLLED ARPT TXWY. BELIEVES THAT IT IS A SAFETY HAZARD.

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AT OAR; MARINA MUNICIPAL (MARINA CALIFORNIA) THERE IS A GND OBSTACLE LOCATED IN THE CTR OF THE COMPASS ROSE AT THE END OF THE TXWY. A PIECE OF REBAR ABOUT 2 INCHES IN HEIGHT IS STICKING UP FROM THE GND. THIS COULD CAUSE A ROLL-OVER ACCIDENT OR DAMAGE TO THE ACFT DURING HELICOPTER OPS. THE OBSTACLE WAS FIRST NOTICED DURING HELICOPTER HOVER AND LNDG PRACTICE. NOTE: ARPT MAINT PERSONNEL HAVE BEEN INFORMED OF THIS SAFETY HAZARD. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT THE REBAR HAS BEEN REMOVED SINCE HE SENT IN HIS RPT. HE FURTHER STATED THAT THE COMPASS ROSE AREA WAS AT THE FAR END OF THE TXWY WHICH IS SELDOM USED BY FIXED WING ACFT SINCE THE PREVAILING WIND FAVORS THE OTHER END OF THE RWY. HE ALSO SAID THAT THE REBAR WOULD NOT PROBABLY CAUSE DAMAGE TO AN ACFT TIRE IF ROLLED OVER SINCE IT WAS COMPARATIVELY LARGE IN DIAMETER. HOWEVER; THE PROB TO HELICOPTER IS THE POSSIBILITY OF CREATING A DIAMETRIC ROLL BY THE HELICOPTER SKIDDING SIDEWAYS AGAINST THE REBAR.