Boeing has sent out letters to air carriers expecting delivery of its Dreamliner plane in the next three months revealing its "deep regrets" of possible delays.
Boeing said: “We have informed our customers expecting 787 deliveries in the near term that those aircraft either have been or are at risk of being delayed.
"We are staying in close communication with our customers as we work towards an approved means of compliance with the FAA Airworthiness Directive and develop a plan for resumption of 787 deliveries.
"But we do not discuss specifics about individual airline deliveries in the media."
It added: "Boeing deeply regrets the impact that recent events have had on the schedules of our customers and their passengers."
Thomson Airways is one of those carriers which was expected imminent delivery of the composite-construction plane.
It earlier confirmed to Sky that a delivery date for the 787 was now uncertain.
The Dreamliner was grounded globally on January 16 after the aircraft was hit by battery fires and other technical issues.
"Thomson Airways has not yet been given a new delivery date for its first 787 Dreamliner by Boeing," the travel company said in a statement.
"Our priority is to ensure our customers go on their holidays and we are, therefore, putting contingency plans in place including using alternative aircraft for our long-haul flights to Mexico and Florida if delivery is delayed beyond the end of March.
The airline added: "Boeing is doing everything it can to resolve the situation. We appreciate that there are many customers who are looking forward to flying on the Dreamliner but unfortunately these circumstances are out of our control.
"Once we have finalised our contingency plans we will contact customers whose flights may be affected."