C340 PLT ADVISES THAT STROBE LIGHTS ON POWER LINE TWRS ON THE APCH PATH TO THE AST ILS RWY 26 CAN BE MISTAKEN FOR APCH LIGHTS. NOT ALL OBSTACLE STROBE LIGHTS ARE DEPICTED ON THE COMMERCIAL APCH PLATE.

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APPROX 1.5 MILES FROM THE APCH END OF RWY 26 AT AST; THERE ARE TWO POWER LINE TWRS. THEY EACH HAVE WHITE STROBE LIGHTS ON THE TOP. WHILE ON THE ILS RECENTLY; AS I DSNDED ON THE GLIDESLOPE I COULD START TO SEE BREAKS IN THE OVERCAST AND THE GND BELOW. HOWEVER; I STILL HAD NO FORWARD VISIBILITY. AS I PASSED OVER THE TWRS; I SAW ONE OF THE STROBE LIGHTS. I REALIZED THAT BECAUSE OF THE POSITION OF THE TWR TO THE APCH END OF THE RWY; THE WHITE STROBE COULD BE MISTAKEN FOR PART OF THE SEQUENCED APCH LIGHT SYSTEM BY A PLT UNFAMILIAR WITH THE AREA. I BELIEVE THAT THIS IS A SERIOUS SAFETY ISSUE BECAUSE IN TIMES OF POOR VISIBILITY; A PLT WHO MISTAKES THE STROBE ON THE TWR FOR THE APCH LIGHT SYSTEM MIGHT BECOME DISORIENTED. I SUGGEST THAT THE STROBES BE CHANGED TO RED INSTEAD OF WHITE. THIS COULD BE ACCOMPLISHED AT MINIMUM EXPENSE; AND CLEARLY DIFFERENTIATE THE TWR STROBES FROM THE APCH LIGHT SYSTEM DIRECTLY AHEAD ON THE APCH. A DISORIENTED; UNFAMILIAR; OR INEXPERIENCED PLT MAY BEGIN TO DSND FROM THE GLIDESLOPE THINKING THE APCH LIGHTS WERE IN SIGHT WITH DISASTROUS RESULTS.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR FEELS THAT THE PRESENCE OF THESE TWRS SHOULD BE SHOWN IN SOME CLEAR FASHION ON THE IAP AERO CHART. HE SUGGESTS A NOTE SUCH AS; 'CAUTION; FLASHING OBSTACLE STROBE LIGHTS ON THE ARR PATH AT X.X NM MAY BE MISTAKEN FOR APCH LIGHTS.'