There is a caution on the taxi chart in the AIP:
1. ACFT to exercise caution when taxiing on
TWY B southbound to THR RWY 03L due to
Apron taxilane M extending from TWY B in a
Southerly direction.
Taxiways chart AIP
There is however to wingspan warning, and the "taxiway" they ended up on is defined as a apron taxilane.