WASHINGTON, Jan 21 (Reuters) - Boeing Co told airlines and suppliers on Tuesday it now forecasts it does not expect to win approval from regulators for the return of the 737 MAX to service until June or July, a source briefed on the matter said.
The new estimate, which was reported earlier on Tuesday by CNBC, is based on a number of factors, including new anticipated pilot training requirements. Reuters reported last week that regulators had been pushing back the time needed to approve the plane. Boeing's best-selling plane has been grounded since March after two fatal crashes killed 346 people in five months. (Reporting by David Shepardson; editing by Jonathan Oatis)