CHELMSFORD -- A small plane made an emergency landing at a Chelmsford High School field Friday afternoon because of mechanical problems in its engine, according to police.

The male pilot, the lone person on board, was not injured, police said. No bystanders were injured, according to police.

Chelmsford police responded at 4:12 p.m. for a report of a plane down in the field on Graniteville Road. On arrival, officers found a single engine 1979 Cessna 182Q had landed.

There was no fire, fuel leakage or environmental impact of any kind, police said.

The plane, tail number N97968, took off at Minute Man Air Field in Stow on Friday afternoon and planned to return to Stow but experienced mechanical problems in the engine, which forced the emergency landing, according to the pilot's statements to police.

Chelmsford police secured the scene and notified the Massachusetts Port Authority and the Federal Aviation Administration, which will investigate the emergency landing.

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