A Long Island Rail Road train headed to Hempstead derailed early Monday evening just after leaving Penn Station.
The inspection on May 15 found an insulated rail joint with inadequate supporting ballast and indications of vertical movement of the track system, the NTSB said.
Crews worked through the night to repair the third rail and protection boards, the MTA said. The cause for the derailment remains under investigation.
A No. 1 subway train derailed on the elevated tracks in Harlem Tuesday night, leaving passengers stranded for over an hour and shutting down much of the line for most of the night.
About 700 people were on board the trains on May 17 when one heading east from Grand Central Terminal to New Haven derailed just outside Bridgeport.
Railroad officials in Connecticut said the morning commute went as well as can be expected following Friday’s train collision that injured 72 people and has shut down service.
The wrecked Metro-North trains from the accident last week that left dozens of people injured were set to be removed from the tracks in Connecticut Sunday.
Investigators have begun their probe — and have not ruled out foul play — following the derailment and collision of two crowded Metro-North trains in Connecticut.
The Long Island Rail Road expects to resume regular service Monday, a week after a non-passenger train derailed at Rego Park, Queens, and destroyed nearly a mile of track.
Specialized machinery has been working to dig up the nearly 1,600 damaged concrete railroad ties to replace them with fresh ones.
Long Island Rail Road riders should allow extra time and expect delays and cancellations Tuesday morning, following a derailment.
A movable bridge in Paulsboro, N.J., where a freight train derailed last year will be replaced.
Officials said Saturday that there may have been a problem with a signal at a South Jersey bridge just before a trail derailed there, spewing a hazardous chemical into the air that sickened dozens of people.
Trains are back on schedule for New Jersey Transit after a switch problem Friday disrupted morning service for commuters.
Northeast Corridor, New Jersey Coast Line and Midtown Direct trains were affected earlier Thursday, according to NJ Transit.