"The NTSB (National Transport Safety Board) reported that the Airbus A319 returned to land with one engine shut down and the other on fire.
"This information is incorrect: only one of the engines was affected," the UK's Department for Transport said in a statement on behalf of the Air Accident Investigation Branch (AAIB).
The BA Airbus A319 took off for Oslo on the morning of May 24, returning to the airport minutes later with smoke billowing from the right-hand engine.
"An Airbus A319-131, registration number G-EUOE, during departure from London Heathrow International Airport, had the engine cowls (coverings) from both International Aero Engines V2500 engines separate and fall on to the runway.
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"The pilots reported that they shut down one engine, there was a fuel leak, and that they were returning. The pilots subsequently reported that one engine was shut down and the other engine was on fire," the US team said in its report.
However, the AAIB maintains that only the right-hand engine was affected.
The emergency landing on May 24 had closed both of Heathrow's runways for quite some stime, causing chaos for travellers.
Heathrow bosses and the pilot's association later praised the BA cockpit crew for a textbook landing and evacuation.
The plane was safely evacuated of its 75 passengers and three people were treated for minor injuries.
Some unconfirmed reports have suggested that maintenance may have been to blame rather than a design fault and UK transport secretary Patrick McLoughlin has stressed that strict action will be taken.
"We continue to co-operate fully with the AAIB on this matter and it would be inappropriate to discuss the detail of the incident while the investigation continues," a BA spokesperson said.
The airline had to cancel nearly 200 flights in the wake of the incident but the airline has insisted it is not liable for further compensation to anyone travelling to Europe under European Union consumer legislation.