THE TWR AT SJU IS LOCATED BTWN RWYS AND CONFIGURED WITH AN E AND W CTL POS. EACH SIDE HAS A D-BRITE; HOWEVER; THE E SIDE EQUIP DOES NOT HAVE FUNCTIONALITY AND CTLRS FIND IT NECESSARY TO WORK FROM THE W POS WITH THEIR BACKS TO TFC DURING W OPS.

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LCL CTLRS DO NOT HAVE USE OF INPUT OR DISPLAY CTL FUNCTIONS OF THEIR D-BRITE EQUIP NECESSARY FOR EFFECTIVE AND SAFE OPS AT THE DESIGNATED E TWR POS FOR RWY 26/28 OPS. THIS IS AN ONGOING SIT THAT RAISES MANY SAFETY ISSUES; THE LEAST BEING THE POTENTIAL OF AN UNSAFE SIT DEVELOPING BECAUSE A CTLR MAY NOT MAKE A 180 DEG TURN QUICK ENOUGH TO OBSERVE CONFLICTING TFC; ETC. DURING RWY 26/28 OPS; CTLRS ARE COMPELLED TO OPERATE FROM A POS ON THE W SIDE OF THE TWR WHERE THEY MAINTAIN FULL D-BRITE CTL AND INPUT FUNCTIONS; BUT THIS POS IS INAPPROPRIATE FOR THE CONFIGURED RWYS TFC PATTERN. FROM THIS POS; THE CTLRS' BACKS FACE E TOWARDS ARRIVING TFC WHILE THEY ARE LOOKING W AT THE TFC ON THE D-BRITE DISPLAY. TIME AND AGAIN THIS PROB HAS BEEN BROUGHT UP WITH AIRWAY FACILITIES WHO ARE IN CHARGE OF THE EQUIP; BUT WITH NO SOLUTION TO DATE. THEIR RESPONSE HAS BEEN THAT SINCE THE M-EARTS EQUIP WAS COMING ON LINE; NO NEW COMPUTER PATCHES COULD BE MADE TO THE D-BRITE LOCATED AT THE TWR E POS. MEANWHILE; THE ABOVE UNSAFE CONDITION PERSISTS AND NO REMEDY IN SIGHT.