EXCURSION FROM TXWY.

Narrative

AT PM30 LCL; WE WERE TAXIING E ON TXWY B. NEAR A18; I DEPARTED THE TXWY AND ENTERED THE AREA BTWN TXWY A AND TXWY B. AS SOON AS I REALIZED WE WERE OFF THE TXWY; I STOPPED AND CALLED FOR A GUIDEMAN TO WATCH AS WE RETURNED TO THE TXWY. THE PAVEMENT WAS WET AND THE MARKINGS HARD TO SEE IN THE GLARE OF THE LIGHTS. I THOUGHT I HAD THE NOSEWHEEL ON THE CTRLINE. I AM STILL NOT SURE HOW I ENDED UP WHERE I DID. NOTE THE DIFFERENCE BTWN COMMERCIAL PAGE 20-9 AND 20-9B. 29-9 SHOWS A R TURN AT A18 AND 20-9B DOES NOT. POSTFLT INSPECTION REVEALED NO DAMAGE. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE COMMERCIAL ARPT CHART 20-9B IS AN EXPANDED CTR/TERMINAL SECTION OF CHART 20-9. THE RPTR WAS NAVING WITH CHART 20- 9B ENTERING HIS GATE. THE RPTR TAXIED INTO THE AREA; PAINTED GREEN; BTWN A18 AND A19. THIS AREA; ALONG WITH 34 OTHERS NEARBY; USED TO BE TXWYS AND ARE LOAD BEARING SURFACES. THERE ARE PAINTED ROADWAYS FOR SVC VEHICLES RUNNING THROUGH THE GREEN PAINTED AREAS. CHART 20-9B DOES NOT SHOW A SLIGHT R TURN TO GAR THE AREA. THE AREA IS MARKED WITH TXWY LIGHTS THAT ARE ON STANCHIONS ABOUT 1 FT ABOVE SURFACE LEVEL. BRIGHT LIGHTS FROM THE INTL TERMINAL CAN SHINE ON THE WET PAVEMENT OF THE ISLANDS MAKING MARKINGS AND THE GREEN PAINT INVISIBLE. THE RPTR CALLED FOR A WING WALKER AS HE DID NOT KNOW IF HE HAD; OR MIGHT; HIT A TXWY LIGHT OR PICK UP TRASH THAT MIGHT BE IN THIS UNSWEPT AREA.