By Abhijith Ganapavaram, Allison Lampert (Reuters) -Boeing CEO Kelly Ortberg laid out a cautious path to turn the company around on Wednesday, calling for a "fundamental culture change" at the struggling planemaker as its quarterly losses surged to $6 billion due to a crippling strike.

Boeing Co. Chief Executive Officer Kelly Ortberg provided an unvarnished view of his company at a crossroads, absorbed by challenges ranging from huge debt to serious performance lapses that will need time to fix before it can consider developing a new aircraft.

"We need to right size and be efficient, and I think we need to continue to do that as we go forward," he told CNBC in an interview

Boeing CEO Kelly Ortberg laid out a cautious path to turn the company around on Wednesday, calling for a "fundamental culture change" at the struggling planemaker as its quarterly losses surged to $6 billion due to a crippling strike.

Boeing Co. Chief Executive Officer Kelly Ortberg provided an unvarnished view of his company at a crossroads, absorbed by challenges ranging from huge debt to serious performance lapses that will need time to fix before it can consider developing a new aircraft.

Boeing boss Kelly Ortberg has warned the company is at a "crossroads" after losses at the aerospace giant surged to roughly $6bn (£4.6bn). Mr Ortbeg, who took over as chief executive in August, said he was working "feverishly" to stabilise the firm,

Boeing CEO Kelly Ortberg outlined an urgent turnaround strategy on Wednesday as the aerospace giant reported a staggering quarterly loss of $6 billion, driven largely by a protracted strike that has severely impacted production.