Staff at Airbus's Filton site have been told the company must 'act urgently' in order to survive the coronavirus lockdown.
It's been widely reported that job cuts may be necessary to help save Airbus.
In an email sent out to all staff by Chief Executive Guillaume Faury, employees were told that the company was "bleeding cash at an unprecedented speed which may threaten the very existence of our company."
It went on to say that it would not survive unless immediate action was taken that 'may involve deeper job cuts'.
Airbus, which is one of the largest plane suppliers to commercial airlines, has already lost a third of its business due to travel restrictions.
Airbus employees 13,500 members of staff which are spread across its two UK bases, one in Filton, South Gloucestershire - the other in Wales.
It's been reported the aerospace manufacturer could make job cuts as early as Wednesday 29 April, when its due to release its first-quarter earnings.
A spokesman for Airbus said the firm does not comment on internal communications.