An airport official says the problem has not impacted any flights. However, elevators, escalators and moving sidewalks are out of commission.
Atlantic City Electric is reporting about 25,000 customers still without power. The utility company expects most service to return by Thursday, though some residents may remain without electricity until Saturday because of extensive damage.
The sounds of snowblowers and shovels filled the air in Delaware County on Monday as more than a foot of heavy, wet snow fell in some spots.
PECO is investigating an electrical issue in Philadelphia's Roxborough neighborhood
As a winter storm moves into the region, the likelihood of widespread power outages will depend more on the weight and type of precipitation than on snowfall totals.
Video captured by a neighbor showed repeated bursts of light and loud pops. "We actually thought it was a gunfight," one resident said.