Narrative:

Taxiing out of cargo ramp at tys issued clearance to cross runway 23R at taxiway G5 to utilize taxiway B for runway 5L departure. Reviewing the caution block on the commercial chart I saw the note regarding use of taxiway G south of G5 this implied to me an intersection of taxiway G and G5. I anticipated seeing a taxiway G5 sign but there is none; only taxiway G6. I was told to stop and do a 180 degree turn to avoid entry onto the military ramp. The actual taxiway chart could be made more clear. Also a 'do not enter' sign as you travel south on taxiway G approaching the intersection in question could be helpful. If the signage (as it exists) says that the intersection in question is taxiway G6 then the note should say 'don't use taxiway G south of G6.' the mentioning of taxiway G5 made me specifically look for taxiway G5 sign which is not there.callback conversation with reporter revealed the following information: reporter stated that he is familiar with the airport because of frequent trips. Usually aircraft departing the freight ramp are cleared across the runway further north. This is the reporter's first trip to cross at taxiway G5. When he saw the taxiway G5 crossing constraint on the airport chart he was looking for a taxiway G5 sign after G6. In this case the aircraft was able to turn around because of its relatively small size; a larger aircraft probably would not be able to because of the taxiway width. The reporter believes that a sign well prior to taxiway G6 should warn crews not to pass taxiway G6 but use taxiway G6 to access taxiway G5.

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Original NASA ASRS Text

Title: AN ACR PLT NOTES THAT TYS TXWY G5 AND G6 INTERSECT WITH TXWY G AT THE SAME POINT. A SIGN IDENTIFIES G6 ON TXWY G BUT THE ARPT DESCRIPTION PAGE SPECIFIES TXWY G5 AS A CONSTRAINT POINT.

Narrative: TAXIING OUT OF CARGO RAMP AT TYS ISSUED CLRNC TO CROSS RWY 23R AT TXWY G5 TO UTILIZE TXWY B FOR RWY 5L DEP. REVIEWING THE CAUTION BLOCK ON THE COMMERCIAL CHART I SAW THE NOTE REGARDING USE OF TXWY G S OF G5 THIS IMPLIED TO ME AN INTXN OF TXWY G AND G5. I ANTICIPATED SEEING A TXWY G5 SIGN BUT THERE IS NONE; ONLY TXWY G6. I WAS TOLD TO STOP AND DO A 180 DEG TURN TO AVOID ENTRY ONTO THE MILITARY RAMP. THE ACTUAL TXWY CHART COULD BE MADE MORE CLR. ALSO A 'DO NOT ENTER' SIGN AS YOU TRAVEL S ON TXWY G APCHING THE INTXN IN QUESTION COULD BE HELPFUL. IF THE SIGNAGE (AS IT EXISTS) SAYS THAT THE INTXN IN QUESTION IS TXWY G6 THEN THE NOTE SHOULD SAY 'DON'T USE TXWY G S OF G6.' THE MENTIONING OF TXWY G5 MADE ME SPECIFICALLY LOOK FOR TXWY G5 SIGN WHICH IS NOT THERE.CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT HE IS FAMILIAR WITH THE ARPT BECAUSE OF FREQUENT TRIPS. USUALLY ACFT DEPARTING THE FREIGHT RAMP ARE CLRED ACROSS THE RWY FURTHER N. THIS IS THE RPTR'S FIRST TRIP TO CROSS AT TXWY G5. WHEN HE SAW THE TXWY G5 CROSSING CONSTRAINT ON THE ARPT CHART HE WAS LOOKING FOR A TXWY G5 SIGN AFTER G6. IN THIS CASE THE ACFT WAS ABLE TO TURN AROUND BECAUSE OF ITS RELATIVELY SMALL SIZE; A LARGER ACFT PROBABLY WOULD NOT BE ABLE TO BECAUSE OF THE TXWY WIDTH. THE RPTR BELIEVES THAT A SIGN WELL PRIOR TO TXWY G6 SHOULD WARN CREWS NOT TO PASS TXWY G6 BUT USE TXWY G6 TO ACCESS TXWY G5.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.