Air carrier crew reported following a colored taxi line which did not provide adequate wingtip separation from obstacles during taxi to the gate at CLT. The maximum wingtip clearance was depicted; but the crew was uncertain as to the application of the restriction.
Synopsis
Air carrier crew reported following a colored taxi line which did not provide adequate wingtip separation from obstacles during taxi to the gate at CLT. The maximum wingtip clearance was depicted; but the crew was uncertain as to the application of the restriction.
Narrative
We were given clearance to hold at a spot while waiting for outbound aircraft. They were pulled to the top of the alley for disconnect and start. While we waited we noticed on the CLT AMM (Airport Moving Map) that there was a wingspan restriction but tapping on it didn't provide any further information (like you get for hotspots). I continued to search and found only that there is indeed a restriction via the legend but not what the restriction is. I then went in search of the ramp information regarding the orange and blue lines in the company pages and didn't find anything in there either. About that time ramp gave us clearance to proceed to the gate via the orange line. I asked her about the wingspan restriction since she was the next best resource and I thought being her control area that she would know. She said she didn't know of a restriction. I took that to mean that it didn't pertain to us and was probably a widebody restriction. We continued to the gate but then much realized it was tight and upon further digging found the restriction does indeed apply to our aircraft.I think we were set up for a scenario that could have played out much differently as we searched for information and tried to use resources that weren't helpful. We operate at numerous airports where the taxi wing clearance is tight but apparently designed to fit and while extreme caution is used; to an extent desensitized to how tight and little wing clearance there is from our perspective. Also; forgetting that there may have been further information on company pages.I appreciate having the AMM for taxi assistance and have come to rely heavily on the information it easily provides however in this case it didn't give enough. Adding the ability to tap on the red line and get information for the restriction would have easily helped as it would have been immediate; linked information. I think informing the ramp controllers of all of the restrictions in their control area so that they are an available resource would be helpful. Also; having ramp information and local ramp procedures/information in the company pages as yet another place to find information would be helpful as it is specific to that airport and it's unique operation.
Second reporter narrative
Taxied inbound after landing for the gate. Held at a spot for taxi clearance from Ramp. Aircraft Y was holding at an adjacent spot outbound. We received a clearance to taxi via the orange line to the gate from Ramp. We queried Ramp about restrictions for 2 narrowbody aircraft in the D/E alley on the blue/orange lines and she said; 'I know of no restrictions'. I judged there was enough room to taxi past Aircraft Y. Upon postflight review of the company pages I noted the 94 ft wingspan restriction. I am relatively new to CLT. I should have reviewed the pertinent pages and waited for Aircraft Y on the adjacent spot to taxi clear and taxied down the blue line.This was an error of my own making. While I feel experienced in this aircraft; I let my guard down by not reviewing the pertinent company pages before this flight. I have since reviewed those pages.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.