Services connected the "Hogwarts Express" steam bid person been cancelled successful the Scottish Highlands implicit information issues.
Popular tourer bid The Jacobite was made celebrated by its appearances successful the Harry Potter films.
Operator West Coast Railways said services had been suspended aft information inspectors identified an contented with the hinged doorway bid carriages.
The way runs betwixt Fort William and Mallaig crossed the the iconic Glenfinnan Viaduct.
The bid operates connected the West Highland Line nether an exemption granted by the Office of Rail and Road (ORR) that allows the continued usage of practice rolling stock.
Thousands of Harry Potter fans sojourn the Highlands each twelvemonth to question connected the historical bid and witnesser it crossing the viaduct.
The bid has been retired of enactment since the play and West Coast Railways had hoped to resume services this week.
However, the relation said an unannounced sojourn by ORR inspectors recovered "a mates of issues of concern".
West Coast Railways said: "As of now, rider journeys connected the Jacobite, person been suspended portion West Coast Railways reappraisal the concerns raised by the ORR to scope a satisfactory and swift solution to the issues raised.
"Please judge our sincere apologies for these cancellations, nevertheless this is wholly beyond our control."
West Coast Railways said it was offering a afloat refund to passengers and it hoped to tally services again "as soon arsenic possible".