Boeing faces a new investigation after the planemaker told US regulators it might have failed to properly carry out some quality inspections on its 787 Dreamliner planes.

The US Federal Aviation Administration (FAA) said it was “investigating whether Boeing completed the inspections and whether company employees may have falsified aircraft records”.

Boeing executive Stocker said the company would “celebrate” the employee who spoke up.

Last month, a whistleblower came forward with different quality allegations about several Boeing models and said he faced retaliation, including threats and exclusion from meetings, after raising concerns.