American Airlines flight 876, a Boeing 737 heading from Chicago to Boston made an emergency landing on runway 4R at 10:17 a.m. Wednesday morning.
The plane landed without incident.
The flight crew had reported a possible flap problem and had called to the airport for emergency assistance before landing.
There were 136 passengers on board.
No injuries were reported.
The aircraft taxied to Terminal B, Gate 31, where the passengers deplaned.
Massport Fire Rescue and Operations responded to the incident.