WASHINGTON, March 26 (Reuters) - One of two runways that

has been closed since Sunday night at LaGuardia Airport after a

fatal collision between an Air Canada Express plane and fire

truck reopened Thursday ahead of schedule, the Port Authority of

New York and New Jersey said.

The Federal Aviation Administration said arrival rates on

Runway 4 would remain reduced after resuming operations.

The FAA had predicted earlier this week the runway would not

reopen until Friday. The Port Authority said after removal of

the plane and truck late Wednesday, the runway was repaired,

inspected, and confirmed to meet FAA regulations for safe

operation.