Can confirm with update 2.8.9 that the error now occurs at multiple airports:
onEnteredAirport KDCA
Traceback (most recent call last):
File ".\GSX\__init__.py", line 1344, in onSimStart
File ".\GSX\__init__.py", line 1267, in checkOnGroundState
File ".\common\criticalsection.py", line 23, in _synchronized
File ".\GSX\assistanceServices\__init__.py", line 4553, in aircraftEngaged
File ".\GSX\assistanceServices\jetwayOperations.py", line 221, in aircraftEngaged
File ".\GSX\assistanceServices\jetwayOperations.py", line 144, in setJetwaysVars
AttributeError: 'module' object has no attribute 'endChargeAircraftBattery'
{'Airport': 'KDCA', 'User Pos': (38.85206390226509, -77.04054725972132, 7.16288 m, 2.59088 m, 294.60009453328365, 0.015159005299210548, 0.011344640515744686, -0.00021088898571062467, 2.5511759651184085, 1.0)}
GSX SimStop